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Clunk

Started by ribbert, April 10, 2015, 07:55:11 AM

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FJ_Hooligan

Thanks for pointing that out! 

I never come to a stop in a high gear just for the reason you state (unless it's a panic stop situation).

I downshift, I just don't try to get to first gear while I'm still going 50 mph but I do try to keep it in an "appropriate" gear while slowing down.

When I think I'm slow enough to make the next downshift without clunking the trans, I go ahead and do it.  By the time I stop, I'm in first or, at worst, second gear.
DavidR.

theLeopard

Quote from: Firehawk068 on April 10, 2015, 09:52:12 AM
Quote from: Dads_FJ on April 10, 2015, 09:35:43 AM
Quote from: 1tinindian on April 10, 2015, 09:09:42 AM
Blip- I like to keep the revs close to what the next closest gear down is going to be as it's coming down to avoid a herky-jerky tug on the rear wheel.

Leon

+1

+2
I blip all the time. It's force of habit, and helps to make the downshifts smoother on the transmission, chain, and rear tire.
+3

Ive a habit of letting the motor wind down 500rpm on an upshift.
1992 FJ1200

Quote from: George"It is What It Is Until It Ain't Anymore"

wildfire

Ok lets open the flood gates. Who cares to define what blipping the throttle is.
1992 FJ1200

"All I ask for is the chance to prove that money can't make me happy".

Capn Ron

Quote from: wildfire on April 10, 2015, 10:36:23 PM
Ok lets open the flood gates. Who cares to define what blipping the throttle is.

I took it to be rev-matching.  Drove a Formula Ford at Laguna Seca...NO syncros in that bad boy.   :shok:
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

Urban_Legend

A blip on the throttle is a short, sharp twist (or in the case of a car a depression) of the throttle to spin the engine revs to the same as needed for the gear you are about to select, to limit compression braking. I do it all the time in anything with a manual gear box. (Bikes, cars, trucks) I learned to drive in a 1965 Holden (Australian version GM) with a 3 speed "Crash" box with no syncros (very similar to pic except blue) so it was the only way you were down shifting gears. Habit that I kept and like
Mark
My Baby (Sparkles)
84 FJ1100/1200 motor
92 FJ 1200 - Project bike. Finished and sold.
84 FJ1100 - Project bike.

Pat Conlon

It all started because our brakes sucked.
Back in the olden days we had drum brakes on our bikes... and cars. These puppies would be prone to overheating if you even looked at them wrong. Downshifting was mandatory allowing the engine compression to slow the car or bike, saving the brake shoes for times when you really needed them. Even then it was a 50/50 chance you would be presented with less than optimum braking. As Capn Ron indicated above, this was also the time when gear syncros were not fully developed and down shifting required you to rev match the tranny gears. Failure to do so would cause 1 of 2 things to happen, 1 you would not be able to get the tranny shifted into the lower gear, or 2 a god awful bone shaking crunch would occur.

In today's age of DCT paddle shifters and auto blip drive by wire systems, alas, the art of heel toe downshifting is lost.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Flynt

Quote from: Pat Conlon on April 10, 2015, 11:44:19 PM
...alas, the art of heel toe downshifting is lost.

Drama queen...  It's not lost Pat, just exists in diminishing populations.  Vintage racers will remember it at the very least for decades.  And you can always play video games...

"Blipping", if it is rev matching, is how you maximize your traction and minimize upsetting the chassis.  You're not going to be very smooth if you don't do it routinely.

Frank
There's plenty of time for sleep in the grave...

wildfire

So I have been blipping for all these years and never knew it had a name. I was not told to do it. It just came natural and made sense to avoid the jerky movement.
1992 FJ1200

"All I ask for is the chance to prove that money can't make me happy".

TexasDave

Quote from: wildfire on April 11, 2015, 08:19:17 AM
So I have been blipping for all these years and never knew it had a name. I was not told to do it. It just came natural and made sense to avoid the jerky movement.
This is something I was not even consciously aware I was doing. Over the years it has become completely automatic.  Dave
A pistol is like a parachute, if you need one and don't have one you will never need one again.

ZOA NOM

blipping the throttle causes the input shaft (attched to the crankshaft through the gears) to increase it's speed (this must be done with the clutch plates disengaged - lever in), in order to match up more closely with the output shaft (attached to the chain via the clutch) so that there is a smoother transition from the higher gear to the lower one. Syncros were designed to alleviate the need for this, although many folks with syncros continue to do it to save wear on the syncros themselves.
Rick

Current:
2010 Honda VFR1200 DCT (Full Auto!)
1993 FJ/GSXR 1200 (-ABS)
1987 Porsche 911 Carrera (Race)
1988 Porsche Carrera (Street)
Previous:
1993 FJ1200 (FIREBALL)
1993 FJ1200ABS (RIP my collar bone)
1986 FZ750
1984 FJ600
1982 Seca

TimelessFJ

Goodness I've been blipping ever since I was a young bloke and I haven't ever had gearbox or clutch problems with any of my rides and I'm going to continue blipping even if I do go blind :wacko2:
1984 FJ1100, 1314cc Big Bore, Cam Grind, Barnet's Clutch Conversion, Head Porting For 181bhp, Mikuni RS36 Flat Slide Carbs, Uni Filters, 4 into 1, 92ftlb Torque, Stock apart from motor,
It's not age catching up with me I've just Overtaken My Youth

Dads_FJ

Quote from: Flynt on April 10, 2015, 11:54:05 PM
Quote from: Pat Conlon on April 10, 2015, 11:44:19 PM
...alas, the art of heel toe downshifting is lost.

Drama queen...  It's not lost Pat, just exists in diminishing populations.  Vintage racers will remember it at the very least for decades.  And you can always play video games...

"Blipping", if it is rev matching, is how you maximize your traction and minimize upsetting the chassis.  You're not going to be very smooth if you don't do it routinely.

Frank

Blipping the throttle while applying the front brake, now that's art!
John S.

'84 Yamaha FJ1100
'89 Yamaha FJ1200
'94 Yamaha WR250
'80 BMW R100S/Sidecar
'39 BSA WM20

ribbert

Quote from: Dads_FJ on April 13, 2015, 07:26:47 AM

Blipping the throttle while applying the front brake, now that's art!

Isn't that most of the time? If you're washing off speed with the brakes, you need to be changing down gears as the bike slows.

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

Dads_FJ

Quote from: ribbert on April 13, 2015, 09:41:12 AM
Quote from: Dads_FJ on April 13, 2015, 07:26:47 AM

Blipping the throttle while applying the front brake, now that's art!

Isn't that most of the time? If you're washing off speed with the brakes, you need to be changing down gears as the bike slows.

Noel

For you and me and probably most on this list, but I hate to make any assumptions.  I'd guess there's some who alternate between blipping and braking. 

But that doesn't change my opinion that I think this learned trick is neato.
John S.

'84 Yamaha FJ1100
'89 Yamaha FJ1200
'94 Yamaha WR250
'80 BMW R100S/Sidecar
'39 BSA WM20

X-Ray

Ok, I think I might be the only here who........ Doesn't blip! I just have my own riding style, suits me, no probs at all. After reading all this I might have to give it a go to see what I'm missing out on  :biggrin:
'94 FJ1200 Wet Pale Brown
'93 FJ1200 Dark Violet/Silver
'84 FJ1100 Red/White

'91 FJ1200 Dark Violet/Silver ( Now Sold)
'92 FJ1200 Project/Resto Dark Violet/Silver (Now Sold)






For photos of my rear wheel swap, heres the link  https://www.flickr.com/gp/150032671@N02/62k3KZ