99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP! - Honda Motorcycles - FireBlades.org
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post #1 of 9 Old 10-29-2013, 8:02 PM Thread Starter
 
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99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

OK I finally got the bike running like a beast and i am noticing 2nd gear jumps out of gear when i throttle hard. I some times go to shift into 2nd under normal revs and it seems to not catch 2nd. Not all the time but mainly when its cold. It has just a standard Factpry Pro shift Kit and new EBC clutch. It pulls really hard until you get to around 7K then jumps into neutral. I have read that I need to replace the dogs? I have also read that it needs to be undercut? I want to do this myself and i have read the Clymer manual and it says that you do not need to remove the engine to replace the forks and shift drum. Any thoughts please?

Bill
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post #2 of 9 Old 10-29-2013, 9:52 PM
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

Sounds like second gear and the mating gear are pooched, it's a big job to replace the gears in the transmission the engine cases need to be split...
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post #3 of 9 Old 10-30-2013, 3:42 AM
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

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Originally Posted by 1999BladeMan View Post
OK I finally got the bike running like a beast and i am noticing 2nd gear jumps out of gear when i throttle hard. I some times go to shift into 2nd under normal revs and it seems to not catch 2nd. Not all the time but mainly when its cold. It has just a standard Factpry Pro shift Kit and new EBC clutch. It pulls really hard until you get to around 7K then jumps into neutral. I have read that I need to replace the dogs? I have also read that it needs to be undercut? I want to do this myself and i have read the Clymer manual and it says that you do not need to remove the engine to replace the forks and shift drum. Any thoughts please?

Bill

Sounds like dogs although it could possibly be a bent fork.
Pull the oil pan and inspect the forks and drum.
If the dogs are worn though it's engine out and open her up.
It does not need to be undercut.

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post #4 of 9 Old 10-30-2013, 6:37 AM
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

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Originally Posted by bladeracer View Post
Sounds like dogs although it could possibly be a bent fork.
Or both, as was once the case for me.

"You live more for 5 minutes going fast on a bike than other people do in all their life"-Marco Simoncelli
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post #5 of 9 Old 10-30-2013, 6:45 AM
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

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Originally Posted by fj1200rj View Post
Or both, as was once the case for me.

Generally one leads to the other due to the rider attempting to "fix" the situation using force rather than actually fixing it ;-)
When a gear starts playing up the only way to prevent further damage is to skip the gear until you repair it. Continuing to use it simply damages other components.

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post #6 of 9 Old 10-30-2013, 12:20 PM Thread Starter
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

BLADERACER,

Thanks for the info, thats twice you have really helped me out. If i have to crack the case, thats fine. I have a Clymer manual, do you think it is any different than the Haynes manual? i will drop the pan this weekend.
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post #7 of 9 Old 10-30-2013, 5:22 PM
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

I've had same problem on a VFR - 2 cogs and a selector fork needed replacing.

Take your time, follow the manual. Digital cameras allow lots of photos to refer..

Wasn't a cheap job using new Honda parts though (even if I did the work myself)......
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post #8 of 9 Old 10-30-2013, 6:10 PM Thread Starter
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

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Originally Posted by saxonblade View Post
I've had same problem on a VFR - 2 cogs and a selector fork needed replacing.

Take your time, follow the manual. Digital cameras allow lots of photos to refer..

Wasn't a cheap job using new Honda parts though (even if I did the work myself)......

Thanks Saxonblade, taking pictures is a great idea. I am still gonna pull the oil pan and see if a shift fork is bent. I know my chances are slim, but hey you wont know until you look!
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post #9 of 9 Old 10-30-2013, 6:28 PM
 
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Re: 99 CBR900RR JUMPING OUT OF SECOND GEAR, HELP!

Check for wear on the selector shaft for the gear that pops out. Mine was worn (not bent). Also, check the locator dogs, and where they locate on the cogs they fit to. Apparently small wear can create problems.
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