CBR 929RR 2000 - 2001 CBR 929RR Forum

Second gear sucks!

Thread Tools
 
Search this Thread
 
  #1  
Old 03-07-2021 | 08:24 PM
cbr ripper's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2021
Posts: 2
Likes: 0
From: East Windsor Connecticut
Default Second gear sucks!

Hey all! New to the site. looking for any tips. My 2000 929rr second gear sucks! Always pops out. I have went thru the trans in the past,replaced anything looking questionable. Was ok for a very short time.
Im an auto tech but this was my first bike teardown. What the hell did i miss? Thinking of messing with the external shift linkage,although it was originally fine exactly where it is. Most obvious part I replaced during teardown was a badly worn shift fork. Of course I thought bingo...thats my problem. Any insite much appreciated. Thanks
 
  #2  
Old 03-08-2021 | 09:59 AM
IDoDirt's Avatar
Super Moderator
Joined: Aug 2006
Posts: 5,302
Likes: 498
From: South Florida, USA
Default

Welcome to the forum. Typically, it will kick out off gear due to worn "dogs" on the sides of the gears. The protrusions on the sides that engage with the gear next to it. When they wear, they get beveled sides, which causes a lateral thrust of the gear which pushes it out. Only way to fix that is to replace the gear. The teeth on the gear will look perfect because they never disengage with the one they are engaged with. But the wear and damage is on the sides. Google worn dogs, there are plenty of images for reference.

Sadly none of the gears are available new from Honda. Only option is used or maybe 3rd party.
https://www.partzilla.com/catalog/ho...r/transmission
 

Last edited by IDoDirt; 03-08-2021 at 10:49 AM.
  #3  
Old 03-08-2021 | 08:43 PM
cbr ripper's Avatar
Thread Starter
|
Junior Member
Joined: Mar 2021
Posts: 2
Likes: 0
From: East Windsor Connecticut
Default

Thanks for the info. I figured Id be looking at completely tearing back into it, which I dont want to commit to again. Could a slight linkage adjustment possibly help for a bit or would I cause more problems possibly with the other gears???
 
  #4  
Old 03-09-2021 | 08:30 AM
IDoDirt's Avatar
Super Moderator
Joined: Aug 2006
Posts: 5,302
Likes: 498
From: South Florida, USA
Default

Only thing that the linkage is going to do is affect where the pedal sits with relation to your foot and how easy/difficult it is to go up/down the gears. Motorcycle transmissions are constant mesh. One gear isn't going to affect the others. Only issue I can think of is if it keeps popping out of 2nd, it might make it harder to skip over and get it into 3rd since they're sequential transmissions.
 
  #5  
Old 03-09-2021 | 12:23 PM
backdoc's Avatar
Senior Member
Joined: Oct 2009
Posts: 558
Likes: 11
From: Morristown, Tennessee
Default

If you want to completely eliminate this problem you need to have the transmission undercut. Did you replace the shift drum when you replaced the shift fork? Also check the teeth on the shifter rod for wear where it engages the shift star. You only have to remove the engine and split the cases to remove the gears in the transmission. Everything else can be done with the engine in the frame by removing the clutch and oil pan.

https://cbrforum.com/forum/how-103/c...cement-151699/

https://cbrforum.com/forum/cbr-954rr...ission-152834/
 
The following users liked this post:
chobes (01-18-2022)
  #6  
Old 03-09-2021 | 12:43 PM
IDoDirt's Avatar
Super Moderator
Joined: Aug 2006
Posts: 5,302
Likes: 498
From: South Florida, USA
Default

Nice writeup BackDoc. What ya riding these days? I can't believe you live in that part of TN and don't ride... lol
 
  #7  
Old 03-09-2021 | 03:56 PM
backdoc's Avatar
Senior Member
Joined: Oct 2009
Posts: 558
Likes: 11
From: Morristown, Tennessee
Default


I gave up riding on the street for drag racing. My current bike is a 2009 Hayabusa. I bought a frame and pieced this bike together in over a year just for drag racing.
 
  #8  
Old 03-09-2021 | 05:56 PM
IDoDirt's Avatar
Super Moderator
Joined: Aug 2006
Posts: 5,302
Likes: 498
From: South Florida, USA
Default

I'm guessing that puts you back in the seat a bit. Nice looking bike.
 
  #9  
Old 03-10-2021 | 05:08 AM
Al1040's Avatar
Welcome crew
Joined: Jan 2021
Posts: 2,317
Likes: 362
From: Preston, UK
Default

That is some purposeful looking machine, nitros kit as well by the look of it. What sort of times are you running?
 
  #10  
Old 03-10-2021 | 08:42 AM
backdoc's Avatar
Senior Member
Joined: Oct 2009
Posts: 558
Likes: 11
From: Morristown, Tennessee
Default

Originally Posted by Al1040
That is some purposeful looking machine, nitros kit as well by the look of it. What sort of times are you running?
Thanks, It runs good for stock motor on 87 octane pump gas. Bike has 50 shot of nitrous that rarely gets used. Runs 5.70s@~122mph 1/8 mile and 8.90s-9.00s@~145mph 1/4 mile
 


Quick Reply: Second gear sucks!



All times are GMT -5. The time now is 07:06 PM.