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Intermediate problem shifting from 2nd to 3rd
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Intermediate problem shifting from 2nd to 3rd - May 21, 2011, 09:55 PM

Today i leave work and bike doesnt want to shift into third. It does after a few firm tries and seems fine after that. The neteral light flashes with each attempt. any ideas 2004 600RR? Only about 1.5k miles since last oilchange. checked level and its ok. All connections to linkage seem firm with no play or excessive movement. 19+k miles on the bike. I do tend to do aggresive acceleration and shifting at times. Could my problem be a sign the clutch plates need to be replaced?

A couple hours later I headed out to get air in my tires so the bike is ready for a long ride we are doing tomorrow. The bike shifted fine till I was leaving the gas station. Then the same problem occurred again. If it happens on the way to meet up spot tomorrow morning I will probably call it a day and skip the ride. Suck because I was looking forward to it.
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May 21, 2011, 10:13 PM

How does the clutch feel? Does it need adjustment? That would be the easy cure. Does it shift into 3rd ok if you do a clutchless shift? How does the shift arm feel? Any binding? Check the linkages on the lever.

I'm hoping for your sake it's clutch or shift arm related, but I'm thinking maybe shift fork.
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May 21, 2011, 10:16 PM

Weird... Assuming the oil you put in is the right kind (otherwise put the right oil in...), since it comes and goes I would look very closely at the linkage. The clutch could also be causing it if it is not disengaging properly. Do you know how to shortshift without using the clutch? If it shifts fine doing that, it means it's just the clutch sticking (probably because of wrong oil).

You can also see if your clutch is about to be done by putting the bike in a high gear (5th or 6th) and giving it full throttle from low RPMS, if it's worn out, it will slip very noticeably.


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May 21, 2011, 10:17 PM

Quote:
Originally Posted by windblown View Post
How does the clutch feel? Does it need adjustment? That would be the easy cure. Does it shift into 3rd ok if you do a clutchless shift? How does the shift arm feel? Any binding? Check the linkages on the lever.

I'm hoping for your sake it's clutch or shift arm related, but I'm thinking maybe shift fork.

I don't think it would come and go if it was the shift fork, right?


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2001 Triumph Tiger 955i
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May 22, 2011, 08:35 PM

Did close to a 12 hour ride today and it the problem only popped up twice maybe three times
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May 22, 2011, 08:41 PM

I'm thinking shift fork...


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May 23, 2011, 06:58 AM

I still don't understand how a mechanical problem can come and go. The shift fork is either in it's right shape or not, am I missing something?


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May 23, 2011, 06:59 AM

Quote:
Originally Posted by absinthe_now View Post
Did close to a 12 hour ride today
Sorry for the OT but... DUDE! How many miles did that come out to be?


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May 23, 2011, 07:43 AM

Quote:
Originally Posted by Leoallafila View Post
Sorry for the OT but... DUDE! How many miles did that come out to be?
Not really sure. We took back roads to Philly mostly staying well north of B-more on the trip up. Then down thru Delaware on the way back. With stops and everything it was probably only about 9.5 hours of riding.

Last edited by absinthe_now; May 23, 2011 at 07:45 AM..
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May 23, 2011, 09:08 AM

Could be a combination of shift drum and detent wheel wear, chain tension issue , clutch adjustment and/or operator technique. Check chain tension, insure that clutch is fully disengaging (no drag when you pull the clutch lever in all the way) oil level correct and do positive shifting; having a tentative technique (because you think you might have a gearbox issue) can cause missed shifts and false neutrals.


When you say "I do tend to do aggresive acceleration and shifting at times." Aggressive as in slam shifting; shifting without the clutch and not backing off the throttle? This can cause gear dog wear and or breakage which can lead to popping out of gear or refusing to go in.

Clutch wear normally manifests itself as simple slipping, although I've seen fragged clutches that refuse to fully disengage because the baskets got so worn and serrated, or throwout bearings that caused shifting issues.
Do the simple/easy/cheap stuff first; clutch adjustment (if its a hydrualic, make sure you have fluid, no air in lines), chain adjustment, oil level...then, if the issue still persists, pull the clutch cover and/or oilpan and see what you have going on....


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May 23, 2011, 07:27 PM

Quote:
Originally Posted by otb View Post
Could be a combination of shift drum and detent wheel wear, chain tension issue , clutch adjustment and/or operator technique. Check chain tension, insure that clutch is fully disengaging (no drag when you pull the clutch lever in all the way) oil level correct and do positive shifting; having a tentative technique (because you think you might have a gearbox issue) can cause missed shifts and false neutrals.


When you say "I do tend to do aggresive acceleration and shifting at times." Aggressive as in slam shifting; shifting without the clutch and not backing off the throttle? This can cause gear dog wear and or breakage which can lead to popping out of gear or refusing to go in.

Clutch wear normally manifests itself as simple slipping, although I've seen fragged clutches that refuse to fully disengage because the baskets got so worn and serrated, or throwout bearings that caused shifting issues.
Do the simple/easy/cheap stuff first; clutch adjustment (if its a hydrualic, make sure you have fluid, no air in lines), chain adjustment, oil level...then, if the issue still persists, pull the clutch cover and/or oilpan and see what you have going on....
Gonna get it checked out soon. I had a problem sort of like this with my ZX6R and was told shiftforks alot on that problem too. It ended up being a small bent washer or something like that.
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May 23, 2011, 07:33 PM

Shift forks can get progressively worse and appear intermittent at first, not an uncommon phenomenon.


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May 23, 2011, 08:00 PM

Quote:
Originally Posted by boomboom929 View Post
Shift forks can get progressively worse and appear intermittent at first, not an uncommon phenomenon.
Keeping my fingers crossed that it's not the shiftforks. I would think they could handle alot more abuse then I put out. Seems like others abuse their bikes waaaay worst then I do mine. I am under the impression it isnt a cheap think to have fixed. Doing the work myself is out of the question mainly because I don't have a space to work on the bike.
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May 23, 2011, 08:02 PM

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