Question about tranny or clutch on 03 R1??

[1hot03r1az09]

I need to know if anyone has ever had a gear skip under hard acceleration I believe the original clutch is in the bike with 28,000 plus miles every other gear has no problem catching. it just seems to skip in second gear and when it skips sometimes it hits neutral. Do you think its the clutch or is second gear going out or the fork for it or what?

[tzracer]

Clutch does not make a bike pop out of gear.

My guess would be rounded shift dogs causing second gear to pop out under load. Less likely would be a bent shift fork. Would have to look at the transmission to know for sure.

[1hot03r1az09]

that makes me mad cause i just had the tranny rebuilt at 15000 miles

[tzracer]

FWIW I always shim Yamaha transmissions on the tight end off the tolerance.

Street or race bike? I prefer to have race transmissions undercut.

A couple incomplete shifts is all it takes. I tend to be quite deliberate with my shifts.

[1hot03r1az09]

right now its street but its going to race and i haven't had any problems with it after i asked about it but what's the difference between undercutting the tranny for racing and just not doing a damn thing to it i don't know that much about setting up the tranny or shimming it

[Noidly1]

Undercutting helps the tranny stay in the gear you selected.
It doesn't matter if it's for race or street, just get it done.
BTW. it will shift better too...
Just remember, never stomp on the shifter unless you like bent shift forks.
Apply light pressure on the shifter, then pull in the clutch lever and it should click in each gear.

[1hot03r1az09]

I don't use the clutch half of the time i just let off the throttle for a second and it shifts in just fine i guess that's why the clutch has lasted this long for OEM clutch

[Noidly1]

That's fine, just don't stomp or yank the shifter.
Just apply light pressure B4 throttle change.

[1hot03r1az09]

yeah i think it just wasn't fully engaged and i think the clutch is starting to go cause it does slip in second gear under full throttle in the powerband of the bike at right around 7000 rpm

[Noidly1]

If you are changing the clutch, be sure to scuff the steels and replace the springs.
If the steels are blued, replace them.

[1hot03r1az09]

Alright sounds like a plan is it hard to change the clutch i'm mechanically inclined but have never messed with a clutch I can pull a motor apart and put it back together for a car but haven't don't a motorcycle motor yet

[Noidly1]

It's easy. Just follow the directions in the manual and you will be fine.
BTW, Be carefull not to gouge the metal surfaces when cleaning the old gasket off.
Use  permatex ultra silicone "sparingly" on the cover, place gasket on cover and set on flat surface and allow to cure a little for a few minutes, ( to prevent squish out) then a thin coat of oil on the engine side, (for easy removal in the future). Don't overtighten the fasteners!!! A good snug is all you need.

Happy Wrenching...

BTW. some will say not to use sealer or oil. put on dry. If you do, you'll have to scrape later...

[1hot03r1az09]

awesome it will be fun i bet but little tips like the oil around the gasket are always good to know

[Noidly1]

Glad to be of help. Let me know how it goes.

Later...

[resurrection]

I've seen shift linkage that's got bad bushings cause the shift to be less than complete .

Made me wonder if it may have caused this bad 2nd gear dogs.