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92' TRX300 Shifting w/ Stator cover off

16979 Views 29 Replies 3 Participants Last post by  Here 2 help
Greetings folks, long time lurker / learner here. This place rocks, its an invaluable source of TRX repair info.

So maybe this will be a simple question for someone. First quick background: I'm chasing a no-spark issue that after replacing CDI, Coil etc ... lead me to examine the stator and pickup coil. While they tested within limits via the wiring, I still cracked open the side case to remove the stator.

Here's where the question comes in, while I had the cover off and testing the stator, my 18 year old thought it would be interesting to see how the shifter assembly works so he stuck the shifter petal back on and yanked up on it. He said he felt / heard a "clunk" inside :surprise:

Soooo when I came back and heard this (after biting my tongue), I rocked the atv and it freely wheels around. I tried to shift it down, shift it up... nada. It seems fairly stiff. I've never been inside an atv transmission, nor the TRX300 specifically. Is it possible he could have tweaked something shifting it with the case off? I don't see anything on the exposed linkage that is preventing it from potentially shifting. I would expect it to drop into gear easily...but its obviously not doing that.

The neutral light isn't on... but I don't know if its shifted out of neutral or if those lights wont come on with the stator / pickup coil removed. Is there something on the right side of the bike that the shifter shaft connects to that could have gotten out of wack?

I really dont want to reassemble the stator side if there is something inside that is now broken or out of index or something weird.

Thoughts?


-DallanC

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Ok further info, further frustrations.


I removed the clutch cover, kick start, reverse lever, and clutch linkage. Shifter works flawlessly up and down the range, including reverse. I installed the reverse lock lever, it shifts through the entire range, stopping in neutral as expected. I manually turned the reverse lever and it dropped it reverse, then I shifted back up into neutral.


So far so good. I then replaced the clutch linkage and retested shifting, all worked as expected. I then replaced the kickstart, gasket and put the cover back on tapping it by hand and then slightly snugged it up with a few screws. I tried shifting and it went up through the gears but not down. Seemed the same binding. I removed the cover and it again shifted fine. I double checked the reverse lock was installed properly (IDK how someone could even mess that up, it only goes on one way with the spring) and not binding. It moved freely and easily.



Maybe the clutch linkage isnt seating in properly with the 3 ball thrust bearing against the case side? I'm really frustrated at this point... and actually a bit more than frustrated as I jumped the Neutral wire to ground and tried testing for spark by turning it over... still no spark.


So the pickup coil was not problem, which means I never had to remove the covers and go down this other frustrating path. Ugh... IDK what to do at this point. I've had the clutch cover off and on 4 times or so tonight. I think its all lined up and on correctly and then I test shifting and its binding up. So I at least know its the clutch side... and I dont think its the reverse lock.... which only leaves the clutch linkage.


Wish you lived closer! I'd drop it off with a pile of $$$ to get it going lolz



-DallanC

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First thing I see is the clutch arm is not pointing to the center of the clutch as it should be

Try this - remove the clutch release arm, leave the clutch cover off and try shifting - I bet it will work fine

Put the clutch release arm on so it points to the center of the clutch and install the clutch cover with just 3 or 4 screws, just snug them and try shifting

Let me know if it works or not
Yea sorry in that picture I had it 1 tooth rotated. I did try it with it properly aligned with the dot and > mark. I will try again with the shift arm there, and center linkage / thrust bearing removed. That is really all that's left to bind up, if its not centering into the case on assembly.

Shouldn't make any diagnostic difference, but when it binds it binds going down gears, it shifts ok going up, but then I can never get it back down into neutral.

I'll work on it more this evening. Probably also try swapping out the CDI for the other one I bought to see if that fixes the spark issue.

-DallanC
It's probably something simple and therefore overlooked - let me know how it goes
Ok so victory!

I have all the components in, the clutch cover on and snugged up (will torque it later), it shifts fine up and down the gears and into neutral.

What I think happened was when the stator cover came off, the shift shaft pulled out just far enough it didnt engage the stops. Then when it got shifted, it over rotated causing the clutch assembly to come discombobulated. Later when I reassembled the clutch side, I think it was the angle I was working from... it appeared the dot and > case mark were aligned but was still off one tooth. This caused it to rotate one way but bind going the other.

So, you were absolutely correct in that it was something simple and overlooked. I'm just glad nothing was broken or bent.

I took a quick try on the spark issue. I threw on the newer CDI to replace the new CDI that replaced the oem, nada. So I'm back to chasing the spark issue, but I'll go look through the plethora of other spark related threads.

This thread can be considered Solved / Fixed. And a major hearty thanks for taking the time to give advice!



-DallanC
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Congratulations, now how can I help you with the spark issue?
Congratulations, now how can I help you with the spark issue?
I think my original diagnosis was correct, but I'm an idiot on the fix. I realized something stupid last night. Lemme test my theory tonight and post the results. :|


-DallanC
No spark. I'll start a new thread.




-DallanC
I’m having the same problem trying to get it all in the shaft came out with the case and I put it all together and it would not shift all together I played with the little cable on the right side and got it in reverse and nothing else would shift so I just took off the clutch side and that’s were I’m at now hopefully i didn’t mess it up too bad.
I’m having the same problem trying to get it all in the shaft came out with the case and I put it all together and it would not shift all together I played with the little cable on the right side and got it in reverse and nothing else would shift so I just took off the clutch side and that’s were I’m at now hopefully i didn’t mess it up too bad.
The post you replied to is 5 years old and Dallan has not been active for 11 months -you would get a better response starting a new thread and describe in detail (pics are helpful too) what you did or are doing.
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