WANTED TO BUY:
OEM Exhaust System
I have my 9,000 original mile 1985 FJ1100 in the shop and I am going have them replace the Yoshimira pipe with factory original exhaust.
I'm bringing her back to full stock so if you have one for sale, know where one is for sale or have any recommendations...I'm interested.
I want it super clean or even NOS
Thanks all!
Welcome aboard. This is the right place for the best FJ advice left on the planet. I recommend you browse through the RPM website (http://rpmracingca.com/) for parts and this forum for ideas.
Hi, And welcome.
Some one should have a set in the shed taking up space. Just curious, I know you said you wanted to go back to original, which is cool, but wondering if it is worth putting more weight on the bike?
Also please remember this is an international forum, so a location might be handy. Otherwise welcome again and keep your Kookaloo on.
Mark
The 84/85 system uses special double wall head pipes that have a black chrome plated finish. These are extremely hard, near impossible to find in good condition. The chrome finish pits and the inside tube cracks. If you do find them without cracks, you will find them hard to get them dipped with a new black chrome plating due to their double wall construction.
The collector box is no problem to find.
The 2 exhaust cans in reasonable condition can be found...maybe...to restore them to a concourse quality you may need to reskin the stainless steel jacket on the cans .....to find them in good condition or NOS good luck.
Welcome to the forum mate, and welcome to the FJ world (if it is new to you).
You'll find plenty of advice and helpful hints.
To go back to full stock is great. I'm most of the way there with one. However, there are some things full stock make riding a teensy bit irritating, and are not as safe as a minor, imperceptible mod.
#1, wire the petcock if it is not done already. Check Pats tag line for a link.
#2, replace the OEM rubber brake lines with steel braided. You can keep the OEM look by putting the original rubber sheath over the braided lines, including the dust boots. You can also leave the anti dive connected and plumbed. Even concourse inspectors miss this update.
#3, replace the OEM front fork springs with straight weight springs and use the gold emulators. As above the anti dive can remain. It will also give you a little more fork oil capacity rather than blanking off. Again, unless someone takes the forks apart, they'd never know (except the ride is waaaay better)
#4, do the timing advance (files section).
As Pat mentioned, the exhaust system is very hard to find. I stripped Japan of all their available original cans, headers and collectors for my bikes. There were some in Germany, but they cost more that the US foreign debt. Mark is right about the weight, you slightly change the earths orbit when you put them on.
A cheat would be to use the XJR1300 headers, they look like the double wall (nice and fat), are readily available, and could be black chromed if in good nic. I'm not sure about the fit.
For the cans, if no good 1100 ones are available you may be able polish and then wet/dry 1200 OEM cans to achieve the same look, but you'd need a 1200 collector to make it all fit. I've not done this, but it was my plan before I found all the stuff I needed in Japan (complete set with 600 miles, but the headers were pitted and need some love before re chroming).
Troyskie
My '85 headers were silver in color, not black. I did have them jet hot coated in the silver color....then the dreaded cracked inner tube occurred. Still have the complete set somewhere in the barn, including the cans and box (which was also JH coated).
Years ago on my '85, I fixed a cracked double wall header with a strategically placed small self tapping screw which cleared up the death rattle. Worked well for a year before I happened upon a set of '86 single wall headers. Pretty sure I read that tip here.
Rob
1989 FJ1200 headpipes, collector and other parts shown on the way -
Quote from: FJ1200W on February 11, 2019, 04:40:03 PM
1989 FJ1200 headpipes, collector and other parts shown on the way -
The header pipes will interchange without issue, but I don't think the collector box will work with the 84-85 mufflers. It has been quite some time back when I was designing the RPM exhaust system. I believe I found the 84-85 1100 collector box muffler outlets are at a different angle than the 86-95 1200 boxes. The mufflers will not interchange between the boxes and fit the mounting points.
Randy - RPM
Randy is right, there is a difference between collectors. The 1100's had slightly longer collectors than the 12's.
If you are getting 1200 headers and collector, you can polish 1200 mufflers.
Here's a pic of the underside of a slightly worn and pitted 1200 muffler. I just spent 30 seconds with 800 grit wet and dry (it was wet) to see how hard it would be to change. Very easy it turns out. I might be hard to see, but you will remove the black chrome back to the stainless. Scotchbrite will give you the satin lustre of OEM exactly as per the originals. You'd need to experiment with different scotchies to find the right grit/colour.
Troyskie
I've put '86/'87 collector on mine. At least it was advertised as one. I didn't see any difference. It was only heavier than mine with some aditional things inside, that's all (or the old one was so rusted that it got lighter).
What mufflers do you have Ivan? If the part number on the muffler begins with 36Y it's 1100. Anything other means 1200 spec.
Troyskie
(Btw-come down under! I'll host you :good:)
Quote from: Troyskie on February 12, 2019, 01:34:55 AM
What mufflers do you have Ivan? If the part number on the muffler begins with 36Y it's 1100. Anything other means 1200 spec.
Troyskie
(Btw-come down under! I'll host you :good:)
Or you could come to Croatia. :biggrin: Same deal. :good2:
Mufflers are Sito.
https://www.ebay.es/itm/Sito-escape-silencers-yamaha-FJ-1100-fj-1200-84-87-91-36y-47e-1xj-3ya-New-/381437361196 (https://www.ebay.es/itm/Sito-escape-silencers-yamaha-FJ-1100-fj-1200-84-87-91-36y-47e-1xj-3ya-New-/381437361196)
https://picclick.de/Auspuffendtopf-Auspuff-Endtopf-Endt%C3%B6pfe-Sito-re-li-Yamaha-FJ-123554453547.html (https://picclick.de/Auspuffendtopf-Auspuff-Endtopf-Endt%C3%B6pfe-Sito-re-li-Yamaha-FJ-123554453547.html)
Mate, I'd love to come to Croatia! You could also introduce me to Darko with the globe trotting FJ! :good2:
Sounds like I might be sending the set of mufflers out as well - I'm good with that.
Quote from: Troyskie on February 12, 2019, 02:44:06 PM
Mate, I'd love to come to Croatia! You could also introduce me to Darko with the globe trotting FJ! :good2:
Well, to talk to Drako you should come to CRO by motorcycle then, through Indonesia, etc. :biggrin:
Quote from: FJ1200W on February 12, 2019, 06:31:00 PM
Sounds like I might be sending the set of mufflers out as well - I'm good with that.
But but but the mounting points would not work, correct?
Oh well - I sent the stuff in good faith, I did my part......
I remeber back in 94 i think it was i had the inner downpipe rattle solution was small selfdrilling screws right thru the bends.I then got new rattles from the side mufflers soulution was drilling out the poprivets remove the backplate and remove the 3 or 4 small tubes innside the mufflers and then pop the backplate on. I dont think my neighbors did like the new sound on my FJ when i started it with choke half six in the mornings :sarcastic:
Quote from: FJ1200W on February 13, 2019, 07:56:30 AM
But but but the mounting points would not work, correct?
Oh well - I sent the stuff in good faith, I did my part......
If the cans are the earlier models pre 91 it should be fine. I'm pretty sure you not only done your part, but done well. :good2:
Just talked to Dale with Valley Cycle Dyno Tune in East McKeesport and he has the Yoshi system off and about ready to ship to me. I am a little discouraged, he said it's real rusty, but as long as it cleans up and can be coated, I'll be happy. Unless the can is trashed, no - think positive!
One comment he made was the studs were too short for the flanges. I checked, and the studs and flanges are the same for the 11 & 12 - could the original owner swapped them out for better fit the Yoshi system?
Me, I'd probably use washers or spacers - any thoughts?
You may need to make or buy some flanges. I've a few old non OEM systems including a Motad one which uses different flanges for the headers. Perhaps you need the Yoshi header flanges or simple flat ones.
Quote from: Troyskie on February 22, 2019, 12:14:34 AM
You may need to make or buy some flanges. I've a few old non OEM systems including a Motad one which uses different flanges for the headers. Perhaps you need the Yoshi header flanges or simple flat ones.
Ah - The stock flanges take special bolts, the Yoshi uses regular locking style.
https://www.rpmracingca.com/proddetail.asp?prod=Exhaust%3A90179-08004 (https://www.rpmracingca.com/proddetail.asp?prod=Exhaust%3A90179-08004)
https://www.rpmracingca.com/proddetail.asp?prod=Exhaust%3AH%2FN95604-08200 (https://www.rpmracingca.com/proddetail.asp?prod=Exhaust%3AH%2FN95604-08200)
Ah ha! Just had a look at the motads on one of the 11's, the PO used oversized nuts as spaces..... :pardon: what more will I find on that bike... :sarcastic:
Quote from: Troyskie on February 22, 2019, 10:16:03 PM
Ah ha! Just had a look at the motads on one of the 11's, the PO used oversized nuts as spaces..... :pardon: what more will I find on that bike... :sarcastic:
TBH Troy, a lot of folk have done this on FJ's I've seen here in the U.K. - I think some people use them to try to tighten the flanges closer to the cyl heads when they forget (or don't know) to use the deformable alloy/copper "gaskets" between the header pipes and the cyl head.
Mate the PO LOVED this bike. I'm not sure if he did it himself, or had 'expert' mates help, but he well and truly fucked up sooooooooo many things. I'm nearly 8K into this heap and won't sleep till Brooklyn. Every nut is either finger tight or so over tightened I need half my local town to hang on the end of a spanner (the big half, and there are lots of them :) ), or every screw needs either easy out or impact drive. There are shenanigans that will likely only see the light of day when the sun burns out or the universe achieves heat death.
Quote from: Troyskie on February 23, 2019, 05:34:11 PM
Mate the PO LOVED this bike. I'm not sure if he did it himself, or had 'expert' mates help, but he well and truly fucked up sooooooooo many things. I'm nearly 8K into this heap and won't sleep till Brooklyn. Every nut is either finger tight or so over tightened I need half my local town to hang on the end of a spanner (the big half, and there are lots of them :) ), or every screw needs either easy out or impact drive. There are shenanigans that will likely only see the light of day when the sun burns out or the universe achieves heat death.
You should have made a video, sure it would be beneficial to many of us. :wacko3: