FJowners.com

(This is partially to test the polling function offered by the site)

Background:
In past lives, I've been a computer programmer and systems administrator. I'm currently working in a friend's small machine shop, surrounded by several manual and CNC lathes and mills.

The CNC devices can be programmed to make parts that are designed with computer software.

I'm new to this aspect, and want to learn more. Hands-on is the approach I like to take.

We have a bunch of aluminum scrap pieces that would be ideal for practice. The part that immediately jumps to mind is the small round engine cover found on the right-side of the FJ engine.

Last Friday, a computer-design-savvy friend stopped by the shop, and we rendered a ran a rough copy of the part in question. Naturally, we were a bit over-eager and ended up breaking the end mill during the roughing process. (kind of like breaking a drill bit in your drill)

Although our first attempt ended in failure, we were able to prove that the concept works.

Question/Discussion:
IF (and this is a big IF) we are able to perfect the design of this part, would members of the FJ community be interested in purchasing them?

Chris (the design guy) showed me how you can add text or design to a basic part rendering, and spit out the machine code to make the part. He actually made a rough sketch of the Yamaha tuning fork trio that could be either raised or relieved on the domed cover of the part. I was thinking of the possibilities, such as the name "FJOWNERS.COM" along with your forum user name, or the phrase "Polish Me, PLEASE", etc.

(Naturally, I would not want to get in trouble with the copyright-infringement police!)

So... if this sounds interesting to the masses, I'll set aside some of the appropriate scrap aluminum pieces. If no one seems interested, then I'll still pursue the learning experience, I just won't bother to keep any of the scrap around.

Thank you for your input, one way or the other.

Respectfully,

Steve   (popcorn)

You mean like one of these...?

(http://i1215.photobucket.com/albums/cc517/racerrad8/004_zps3599d61f.jpg~original) (http://s1215.photobucket.com/user/racerrad8/media/004_zps3599d61f.jpg.html)

Quote from: Steve_in_Florida on June 22, 2014, 07:45:23 PM
Question/Discussion:
IF (and this is a big IF) we are able to perfect the design of this part, would members of the FJ community be interested in purchasing them?

That is a question I had not gotten around to asking yet.

Randy - RPM

Quote from: racerrad8 on June 22, 2014, 07:55:05 PM
You mean like one of these...?

Randy - RPM

(http://i1215.photobucket.com/albums/cc517/racerrad8/004_zps3599d61f.jpg~original) (http://s1215.photobucket.com/user/racerrad8/media/004_zps3599d61f.jpg.html)

Yes, SIMILAR to one of those!  <rolls eyes>

Certainly, I'm not looking to step on toes or take anyone else's profits. I just want to LEARN how to do stuff like this. The aluminum belongs to the owner of the shop, so I would need to reimburse him for the resources.

Just testing the waters...

Steve

Looks good. I think if I had any suggestion it would be to make it about 25mm thicker as it seems to serve as a "bumper" on a right side drop.  Mine was scoured when I bought it and of course I continued the process when I dropped it..... Also as a note a stock cover is or was available last time I checked.
Might consider a sacrificial urethane cap/bumper ?  Just crap in the campfire.
George

Does that piece cover the blind plug on the right side of the engine casing as you sit on the bike. Previous owner trashed mine. I'd buy it in a heartbeat.

Thanks, Rick

Quote from: movenon on June 22, 2014, 09:22:48 PM
Looks good. I think if I had any suggestion it would be to make it about 25mm thicker as it seems to serve as a "bumper" on a right side drop.  Mine was scoured when I bought it and of course I continued the process when I dropped it..... Also as a note a stock cover is or was available last time I checked.
Might consider a sacrificial urethane cap/bumper ?  Just crap in the campfire.
George

Good idea George. not crap in the campfire.

Rick

Quote from: RD56 on June 22, 2014, 10:23:43 PM
Does that piece cover the blind plug on the right side of the engine casing as you sit on the bike. Previous owner trashed mine. I'd buy it in a heartbeat.

Thanks, Rick

Yes. Still available from Yamaha. Or at least a few months ago it was.
George

Steve:

Since your cover idea was snagged by another enterprising entity already, soldier on with other ideas please. I have an idea, and perhaps others may have their own to spawn, to keep your creative juices flowing.

Is it possible to produce mirror extenders for the 84, 85 models? Could be a simple bar stock item with a male thread on one end that, threads into the existing female thread on the hand master cylinders, then have a horizontal 25mm offset with a female thread on the other end to match the mirror stalk's male thread.

Another idea for the mirrors, and to open possibilities of using other makes and model's mirrors is to produce adapters that thread into the existing aforementioned OEM FJ threads and have different female threads for other mirrors from other bikes.

Good luck!

Quote from: FJ1100mjk on June 23, 2014, 07:16:48 AM
Is it possible to produce mirror extenders for the 84, 85 models? Could be a simple bar stock item with a male thread on one end that, threads into the existing female thread on the hand master cylinders, then have a horizontal 25mm offset with a female thread on the other end to match the mirror stalk's male thread.

http://fjowners.com/gallery/7/1388_23_06_14_7_16_55.jpeg (http://fjowners.com/gallery/7/1388_23_06_14_7_16_55.jpeg)

Great idea Steve  :good2: :drinks:

I just happen to need one of those covers.....From Thursday afternoons aerobatics demonstration.

Fred

Quote from: aviationfred on June 23, 2014, 09:07:52 AM
Great idea Steve  :good2: :drinks:

I just happen to need one of those covers.....From Thursday afternoons aerobatics demonstration.

Fred

Take a look at these Fred. http://www.iwt-customparts.com/en/home.html?page=shop.browse&category_id=3 (http://www.iwt-customparts.com/en/home.html?page=shop.browse&category_id=3)
More ideas   :mail1:
George

Quote from: movenon on June 22, 2014, 09:22:48 PM
I think if I had any suggestion it would be to make it about 25mm thicker as it seems to serve as a "bumper" on a right side drop.  Mine was scoured when I bought it and of course I continued the process when I dropped it..... Also as a note a stock cover is or was available last time I checked.
Might consider a sacrificial urethane cap/bumper ?  Just crap in the campfire.
George

The cover will not work if made longer as it almost touches the engine bars now.
(http://i1215.photobucket.com/albums/cc517/racerrad8/001_zps9b01798f.jpg~original) (http://s1215.photobucket.com/user/racerrad8/media/001_zps9b01798f.jpg.html)
If you are not running engine bars I guess you could install longer cover, but I doubt the 4mm screws holding the cover on will take much of a shear load to protect the engine case when sliding down the road. Then there is still the question of the brake pedal pokes a hole in the clutch cover too.

The best protection you can buy are the engine bars found on the RPM website.

Randy - RPM

Quote from: racerrad8 on June 23, 2014, 01:43:37 PM
I guess you could install longer cover, but I doubt the 4mm screws holding the cover on will take much of a shear load to protect the engine case when sliding down the road.

Randy - RPM

Yeah, when I did my low-side on the right-side, those two bolts sheared off instantly as if they were made of plastic!  The case wasn't damaged and a new cover fit right up.

I agree that the best protection are the Rentech engine guards.  No question about that.  I am thinking of making the best of an existing situation.  On the rear brake pedal I have trimmed mine back for more clearance and removed some of the sharp edge.  Still not going to protect much, but in a soft fall it might help and costs nothing.

You correct about the shear load of the 4mm bolts but I have seen a lot of caps ground down and the bolts are still there, also I have seen some completely gone.  If you don't have Rentech engine guards I still think a urethane cap would help.  I have thought about crash bungs/bumpers bolted to the frame also.

Now that I think about it a long narrow urethane cap/slider wouldn't be a bad add on to the side of the Rentec's. They seem to get ground in the same spot... On helicopter's we put "shoes" under the skids for practicing auto rotations on the taxi ways.

The Rentech engine guards are the best by far and I will buy a set when I can.  I have mentioned them to others and some like them and some don't like the looks and added weight,  for them there might be some other options to think about.
George

......http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801 (http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801)

Steve, Could you do something like this [engrave a name or something on the front sprocket cover??]

Quote from: Brook on June 23, 2014, 03:09:51 PM
......http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801 (http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801)

Steve, Could you do something like this [engrave a name or something on the front sprocket cover??]

Extremely nice FJ. IMHO as close as you can get to a Cafe without destroying the inherent beauty of the bike.

Rick

And/Or set up to cut vents into the stock countershaft sprocket cover.

By modifying existing parts you don't have any material costs!

Chris, what would be the purpose of cutting vents in the c/s sprocket cover?

It's pretty gooey in there....

Randy, I want one of your covers....I can't find it on your site.

...... Thanks Rick

Quote from: Pat Conlon on June 23, 2014, 07:50:30 PM
Randy, I want one of your covers....I can't find it on your site.

I know, it was a prototype I had made up probably a couple of years ago now. The problem has been all of the other projects keep getting int the way of these types of projects. I have a couple of other covers in the works too, but they are not even on the stove, let alone on the back burner right now.

The biggest thing I am still trying for is to complete funding so I can buy that Yamaha business, and that is consuming a lot of time.

I have already sent an email inquiring about the cost of the cover earlier today and I will proceed from there.

Randy - RPM

Ok, no worries Randy, your plate is full...

Quote from: Brook on June 23, 2014, 03:09:51 PM

......http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801 (http://www.fjowners.com/index.php?action=gallery;sa=view;id=2801)

Steve, Could you do something like this [engrave a name or something on the front sprocket cover??]

Brook,
Yes, the equipment we have can do this.

The time-consuming part is developing a method to HOLD the part SECURELY and ACCURATELY. Fabbing up jigs is EVERYTHING in this business. This is also the part that makes small, one-off projects less than cost-effective.

BTW, the other half of the shop builds penny-farthing-style bicycles FROM SCRATCH.

Shameless plug for the shop:  www.victorybicycles.com (http://www.victorybicycles.com)

...and a virtual tour:



You're welcome to stop by sometime and I'll give you a tour of the shop.

Steve

.... That's pretty cool Steve, I would really like to come out your way some time and visit. but I am having some serious lower back problems..... To the point, where I am thinking about selling my FJ. [yes,it's that bad]

I am scheduled for a nerve block injections, the first of next month. and after that, a rooster combo. injection for my right knee.

  if the out-patient surgery's work-out for me, maybe we could meet-up sometime and have lunch and you can show me around your shop.

                                     Jeff

Sorry to hear that, Jeff.

I remember you talking about knee and back pains when we rode to St. Pete. I cannot begin to imagine the pain you must endure.

Contact me anytime!  :hi:

Steve

..... OK, Thanks!!

Would it be possible to make brake caliper adapters for blue dots to fit early forks? I think the UK Fj club offers them.  Dave

This idea is a real winner!  With the valve kit from RPM, that's what is needed for these old front ends - both for stock rims and the late rims/FZR rims too

Do the blue dots really offer more then the stock calliper, or is it all the other upgrades like master cylinder and braided lines?

The weight of the stock callipers without pads are only 750grams vs 650 grams for blue dots so not much advantage there.

Quote from: Fj.itis on June 26, 2014, 12:14:51 AM
Do the blue dots really offer more then the stock calliper, or is it all the other upgrades like master cylinder and braided lines?

The weight of the stock callipers without pads are only 750grams vs 650 grams for blue dots so not much advantage there.

My view is they offer huge improvement in bling and bugger all in efficiency but I know from previous discussions I'm in the minority (if not alone) on this one. Unlike most here I have tried every component of the upgrade individually for a considerable time and believe the m/c, lines and pads, to varying degrees, make the difference. The only difference is split vs monoblock calipers. I have read here claims that you can actually see the caliper spread with the naked eye as you apply the brake. Rubbish. You can theorise about one vs the other 'til the cows come home but on the road I would defy anyone to pick the difference.

With all other things being equal, I have swapped them over and noticed no difference, and I use my brakes a lot and really hard.
The EBC HH pads make a BIG difference.

IMHO of course.

Noel

Yeah, just by using logic i couldn't see how there could be a huge improvement with blue dots alone. They are still applying the same force to the pad. Thanks for your view on the matter, 1 less thing I'm going to change.

Quote from: Steve_in_Florida on June 24, 2014, 04:57:47 PM

You're welcome to stop by sometime and I'll give you a tour of the shop.

Steve

Steve,

If I were anywhere near Florida, I'd take you up on that offer!  I started life as a bicycle mechanic...outstanding work those two are doing!

Noel & I are in opposite sides of this page.  It seems pretty obvious that Yamaha found some "minor" improvement in braking feel/performance here or they would have gone back to the original 2 piece design, rather than stay with the monobloc-blue dot type of caliper. I would be willing to bet that 99% of the folks that have upgraded the brakes feel like its a worthwhile improvement.

Or you & Noel may continue to tell yourselves that there's really nothing to be gained.  Your choice, I think the rest of the 'moditess' victims will disagree.

Ed

Quote from: simi_ed on June 26, 2014, 02:25:19 AM
Noel & I are in opposite sides of this page.  It seems pretty obvious that Yamaha found some "minor" improvement in braking feel/performance here or they would have gone back to the original 2 piece design, rather than stay with the monobloc-blue dot type of caliper. I would be willing to bet that 99% of the folks that have upgraded the brakes feel like its a worthwhile improvement.

Or you & Noel may continue to tell yourselves that there's really nothing to be gained.  Your choice, I think the rest of the 'moditess' victims will disagree.

Ed

Interesting side note here.  Looking at the pictures from the recent WCR, there are 23 FJs in the group (along with some invading KTM).  21 of the 23 FJs have blue or gold dot calipers, including all but 1 of the pre '89 bikes, along wtih Ron's 'as issued' 92.  Seems like a lot of work for no gain...

Quote from: Fj.itis on June 26, 2014, 12:14:51 AM
Do the blue dots really offer more then the stock calliper, or is it all the other upgrades like master cylinder and braided lines?

The weight of the stock callipers without pads are only 750grams vs 650 grams for blue dots so not much advantage there.

Well, the adapter brackets if utilized on the earlier models would add mass back into the equation too. Maybe if the adapter brackets are pursued, they could be made more lightweight. The ones that I've seen look overkill, and do not add anything to the bling factor of the Blue Dots.

Quote from: simi_ed on June 26, 2014, 02:32:33 AM
Seems like a lot of work for no gain...

Seems like a little herd mentality too.  :wacko1:

Why did all the manufactures of larger bikes go to 4 and even 6 caliper pads? Even if there is no improvement in braking force there has to be a reason. I am sure it cost more to do it. If you have more area pressing on the disk which is more drag you can use less pressure. Less pressure means less wear. Those pads and disks are going to last longer.  Dave

Quote from: FJ1100mjk on June 26, 2014, 05:04:13 AM

Quote from: simi_ed on June 26, 2014, 02:32:33 AM
Seems like a lot of work for no gain...

Seems like a little herd mentality too.  :wacko1:

I'm sorry you have such a low opinion of your FJ brethren.

I rode Ribbert's bike back to back with my FJ one day several years ago.
His had OEM 4pot brakes, and my bike had Blue-Dots.
I'm not sure if he had SS braided lines then or not, but I certainly did.
I also had R6 brake master and OEM R6 pads.  I don't know what pads Ribbert was using.

His bike braked harder than any other FJ I have ridden with stock brakes.
His bike braked about equal to mine.  He must know some magic spells.

PS: there's no question about "herd mentality", it exists.

Oh yeah, IMnsHO

Arnie

Quote from: simi_ed on June 12, 1970, 06:24:41 AM
I'm sorry you have such a low opinion of your FJ brethren.

Your assumption is incorrect,  I hold you and many others on this site in high regards.

Quote from: simi_ed on June 26, 2014, 08:09:30 AM

Quote from: FJ1100mjk on June 26, 2014, 05:04:13 AM

Quote from: simi_ed on June 26, 2014, 02:32:33 AM
Seems like a lot of work for no gain...

Seems like a little herd mentality too.  :wacko1:

I'm sorry you have such a low opinion of your FJ brethren.

Don't worry about it, Ed... in a crowd this large, there's always going to be a few proud Luddites.   :yes:

I don't think you are going to see a dramatic improvement using bllue dots over OEM 4 pots. But changing over to blue dots from the 2 pot early models with an adapter certainly would be.  Proud to be a luddite.   :biggrin:  Dave

Quote from: TexasDave on June 26, 2014, 08:45:55 AM
I don't think you are going to see a dramatic improvement using bllue dots over OEM 4 pots. But changing over to blue dots from the single pot early models with an adapter certainly would be.  Proud to be a luddite.   :biggrin:  Dave

IIRC, it was either Motorcycling or Cycle World magazine that ran tests of both the early and late model FJs.  The brake stop distance was shorter with the original 2-pot brakes.
There wasn't a lot of difference, but......  Could also be other factors at work.

Quote from: Arnie on June 26, 2014, 08:49:12 AM

Quote from: TexasDave on June 26, 2014, 08:45:55 AM
I don't think you are going to see a dramatic improvement using bllue dots over OEM 4 pots. But changing over to blue dots from the single pot early models with an adapter certainly would be.  Proud to be a luddite.   :biggrin:  Dave

IIRC, it was either Motorcycling or Cycle World magazine that ran tests of both the early and late model FJs.  The brake stop distance was shorter with the original 2-pot brakes.
There wasn't a lot of difference, but......  Could also be other factors at work.

Other factors would certainly be the lighter weight of the early models.  Dave

I'm with Ed on this mod. If the split calipers are just as good as the monoblocks Yamaha would still be using them on the R1.

I guess the weight is not a factor as figures I found state weights both lighter and heavier between early and late models.  Dave

I have weighed all 3 variations of the early monoblocks and the goldspots are the lightest by 100g a set. I'll have to find a pair of the 4 piston and a set of the 6 piston split calipers and measure them too.

Sorry Jon, you're just part of the 'group :drinks: think'.      :mocking:

Quote from: JCainFJ on June 26, 2014, 09:00:28 AM
I'm with Ed on this mod. If the split calipers are just as good as the monoblocks Yamaha would still be using them on the R1.

C'mon guys there's only one way to settle this and that's to send PeeWee to the drag strip with bikes set up as you are discussing and turn him loose. 60 to zero times will tell you pretty quickly what works, what's better, what's not. As much as I hate to admit it I think Noel is spot on with much of his discourse. I guarantee you that if you pull the lever hard enough on a one pot, two pot, six pot caliper, you can lock up the front brake of any FJ. As to whether a split or monoblock caliper is better, I'll give the $100 that I was going to give Randy to anyone who can come up with a picture of a properly torqued split caliper flexing. What I will say is that I am glad that technology is always advancing new ideas that make bikes better, otherwise we wouldn't have anything to spend our money on. And that's what it really comes down to isn't it...MODITIS. Porsche did a great thing for their customers as well as their bottom line when they introduced ceramic brakes as an option on their production cars. A $25000 option. Did it stop a race car faster. They said it did. What they didn't say was that driving your Turbo 5 miles to the grocery store didn't heat up the rotors enough to stop better than cast iron. People couldn't order them fast enough.

As to losing a few grams of static weight, it sure doesn't make my body feel any better. Now pounds is all together different. Give me a better, lighter rotor anytime, give me a better pad compound, give me a progressive feeling lever. In many ways, I actually like the feel of a well bled rubber hose. Having said all of this, I was one of the first to drill holes in my expensive Campagnolo bicycle components back in the 70's, bought a case of some Teflon additive that made my 350 LC faster than anyone else. Bought a Ducati because it had Brembo calipers. Owned an Audi before they started making their own emergency exits in garages across the country.

Keep that shit comin' because I wanna be broke when I die. As long as it gets my unscathed knee and elbow pucks a little closer to the tarmac, bring it on. Keep dreamin, keep the FJ alive for ever. AMEN!

Ricardo il Magnifico

Quote from: TexasDave on June 26, 2014, 06:21:39 AM
Why did all the manufactures of larger bikes go to 4 and even 6 caliper pads? Even if there is no improvement in braking force there has to be a reason. I am sure it cost more to do it. If you have more area pressing on the disk which is more drag you can use less pressure. Less pressure means less wear. Those pads and disks are going to last longer.  Dave

I believe Noel has nicely explained this in past discussions.   With a single piston you have a more or less large square pad.  With multi-piston calipers you can use a more rectangular pad which will apply force further out on the diameter of the disk.   Being farther out gives the multi-piston pad more "lever arm" which means it takes less pad pressure (force) to produce a given amount of braking force compared to the single piston design.  Thus for a given pressure the multi-piston design is more efficient at converting that pressure to a higher stopping force.

The coefficient of friction of the brake pad is the dominant factor in providing stopping power.  Good pads on the old 2-piston calipers were the best brakes I ever had.

Quote from: simi_ed on June 26, 2014, 10:38:22 AM
Sorry Jon, you're just part of the 'group :drinks: think'.      :mocking:

It looks like Jorge has been sucked into the group think as well.
(http://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Jorge_Lorenzo_2008.JPG/640px-Jorge_Lorenzo_2008.JPG)
Note the MONO-BLOC Brembo caliper. I wonder why he's not running split calipers?

Wow!  Brake calipers are the new oil!!!   :sarcastic:

What's the point in upgrading to super fancyshit brakes if you're still using a 16" biasply tire designed in the prewar years?

I'm way out of touch with the 16 inch tire offerings  :flag_of_truce:

So you're saying there are no radial 16 fronts?   

I thought Avon made a 16 in radial front tire.

I'm running Avon Azzaro radials front and rear.  Dave

Quote from: fj1289 on June 26, 2014, 01:36:47 PM
I'm way out of touch with the 16 inch tire offerings  :flag_of_truce:

So you're saying there are no radial 16 fronts?   

Any modern, sticky ones?   No.

The azaro is a rock hard touring tire that's now been available for seven years.  Compares really, really badly against newer stuff.

  


The azaro is a rock hard touring tire that's now been available for seven years.  Compares really, really badly against newer.........   Talking about tires is starting to sound like talking about oil. Alf swears Sport Demons aren't very good and most other people think they are great. My experience with Azaros is they do stick very well but wear out fast. I have 5000mi on the rear and its only got about 20% left and most of the time I ride like a Grandpa(which I am). I think these tires are tires in name only. What I mean is tire mfgs are continuously probably changing rubber compounds in individual names like Sport Demon and Azaros. I hope they are changing for the better. I would bet these names are not the same tires they were even a couple of years ago.  Dave

"Sorry Jon, you're just part of the 'group think'."     

I've done my own research (starting back in 1996) on this, pads-lines-6pots-axial mastercylinders-radial MC's-gen. 1,2,and 3 monoblocks-scotchbrited rotors-bead blasted rotors-Brembo MC's-and now aftermarket rotors.  I've done my homework and my current setup, gold monoblocks-braded lines-zx6r 19mm radial MC-fresh degassed DOT 4 fluid-bead blasted EBC rotors and Sumitomo GG pads on the street or EBC HH pads for track days, works better then any other combination I've tried.

If you want to run a drum brake on your FJ, be my guest.

Quote from: ribbert on June 26, 2014, 12:47:16 AM

My view is they offer huge improvement in bling and bugger all in efficiency
IMHO of course.

Noel

Hey, I'm all for a bit of bling on the FJ,  :lol:.  I got my headers ceramic coated partly for the inherit heat containment benefits, but also because its a shiny, easy to look after finish. As long as I don't go nuts and have the FJ looking like a Thai Lady Boys scooter, its all good.  :biggrin: :biggrin: :good2:   

I uploaded some pictures of the oil pump covers into a gallery I created.

These are our first and second attempts, using some old aluminium stock we had around.

This part might better be done on a lathe, but I'm trying to learn the process using the machines and material at hand.

Steve

(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_10_0.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_14_1.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_17_2.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_21_3.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_24_4.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_28_5.jpeg)
(http://fjowners.com/gallery/7/medium_1822_13_07_14_5_41_31_6.jpeg)

That looks great so far.   :drinks: :drinks: Can't wait to see a finished part.

Fred

  It's all good but, isn't Oil Pump Cover rather a misnomer ? Crank end cap maybe?
  Just sayin'

Quote from: Earl Svorks on July 27, 2014, 04:09:35 PM
 It's all good but, isn't Oil Pump Cover rather a misnomer ? Crank end cap maybe?
 Just sayin'

Oil pump cover per Yamaha parts list. http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html (http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html)
George

Do you have access to a 3D printer?. My son did all sorts of stuff for me with that equipment.

Quote from: movenon on July 27, 2014, 04:15:09 PM

Quote from: Earl Svorks on July 27, 2014, 04:09:35 PM
 It's all good but, isn't Oil Pump Cover rather a misnomer ? Crank end cap maybe?
 Just sayin'

Oil pump cover per Yamaha parts list. http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html (http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html)
George

Hey George, I followed the link, as I scroll down a bit they begin using the term
"Crankcase Cover" for this part,,, item#4 in their diagram.  Yeah ,, I think that name fits a bit better.

Quote from: Earl Svorks on July 30, 2014, 10:01:49 PM

Quote from: movenon on July 27, 2014, 04:15:09 PM

Quote from: Earl Svorks on July 27, 2014, 04:09:35 PM
 It's all good but, isn't Oil Pump Cover rather a misnomer ? Crank end cap maybe?
 Just sayin'

Oil pump cover per Yamaha parts list. http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html (http://www.2wheelpros.com/oem-parts/yamaha-cover-oil-pump-r-5ea-15426-20-00-part.html)
George

Hey George, I followed the link, as I scroll down a bit they begin using the term
"Crankcase Cover" for this part,,, item#4 in their diagram.  Yeah ,, I think that name fits a bit better.

Yea but if the name fits then you take all the fun out of it...  If we don't keep things complex then anyone could find it....... :lol: :drinks:
George

The low-sided '90 I recently bought lost its ignition pick-up plate, trigger and rotor and (of course) their cover (left side).
By mistake I bought the oil pump cap and the big (clutch?) cover for the right side.   My bad (shoulda got a part number from an exploded view before ordering), but unambiguous descriptions would be a "plus".

BTW to add to Randy's observation that covers are not case-savers, the two lower bolts of this cover sheared off and the street ate a bit of case for desert after wiping out the ignition components.  The good news is that crank-end damage was limited to abrasion of the rotor retaining bolt.  A bit more slide would probably have been bad news for the crank end and put this scooter in the "parts bike" zone.

Lesson: case savers are a wise investment.

Anybody got a left cover for sale or trade?

Got the ignition component cover from ebay for $50 after a trip to the local Yam shop confirmed the part number.

Quote from: Burns on August 06, 2014, 12:53:28 PM
Got the ignition component cover from ebay for $50 after a trip to the local Yam shop confirmed the part number.

Sorry, i missed this, i have some good used covers i sell for 25.00.

Randy - RPM

That is a very good deal.  Sorry I missed it Randy.  That cover/cap is removed from motors used in the race cars isn't it?

Can you tell me what is "special" about the special fastener shown on the parts exploded view?

On my '90 that fastener sheared/ground off and I'll have to ez-out it. Looking at the relacement hardware I don't see any difference from the other retainers. 

I'm wondering if this a hyper-sensetive spot for the drill dust that will be created in the extraction process.
What's the risk of oil contamination here?

Gracias

EZed it out, no problemo (used left-handed drill bit for the pilot hole);don't see anything special about the fasteners; there's no obvious oil contamination issues.  Picked up the drill dust with a magnet.
over and out.

Hold on a second! I switched my 92 over to blue dots with 14 mm master and with one finger I almost throw myself over the bars. I'm thinking it's almost dangerous how quickly they grab compared to my 89 with stock set up. Am I missing something? Some sort of "magic" Arnie was talking about? I guess this is all about the brakes themselves and not how much clamping force that is required at the lever? Because I don't need much...
      ...and now back to your regular programming.

Andrew

Quote from: Tapartacus on September 02, 2014, 03:55:39 AM
Hold on a second! I switched my 92 over to blue dots with 14 mm master and with one finger I almost throw myself over the bars. I'm thinking it's almost dangerous how quickly they grab compared to my 89 with stock set up. Am I missing something? Some sort of "magic" Arnie was talking about? I guess this is all about the brakes themselves and not how much clamping force that is required at the lever? Because I don't need much...
     ...and now back to your regular programming.

Andrew

id say your m/c (as in bore size) is too big, transferring too high volume to the callipers, resulting in movement of the pistons being to fast, smaller m/c = slower calliper pistons = more feel = less dangerous.
but its a balance, you could go for too small m/c and not get enough piston movement and have a constantly long lever, I think there is a ratio for brake cylinders, I don't remember what it is exactly, personally I never had a problem with my original rubber brake hoses, the sponginess gave more feel, brakes are not supposed to be light switches.

well that's my 2 bobs worth, wait a minute, are we in the wrong thread here?  :blush:

k out