Partzilla Live Q&A with John Talley – December 10, 2021
John Talley returns for another edition of Live Q&A, answering your motorcycle and ATV repair questions.
Clutch problem questions for motorcycles and ATVs popped up a few times during this edition. Check out some excerpts from Partzilla’s latest live Q&A session below, and tune into our YouTube and Facebook channels every Friday at 3pm Eastern for the next edition.
Partzilla Live Q&A Highlights – Clutch Problems
I have an ‘01 Yamaha Grizzly 600 and I just installed a wet clutch, but after installing it, it’s in a low reduction when riding it. Any help would be appreciated.
John Talley: I’m not sure I follow what you’re saying, but we did a wet clutch rebuild on a Grizzly 700 and I would bet it’s a very similar setup, so if you would, go back and reference that video and just follow what I did. That was a few years ago, so I don’t remember each working point to really give you a guess as to why it would be holding back or not fully engaging because that interior clutch is not speed-dependent, it’s either engaged or it’s disengaged. The only thing that’s going to change your gearing for the most part is the belt system, the CVT system, because Yamaha has two clutches. The centrifugal wet clutch that you’re talking about and it also has the CVT system, which pretty much acts as its transmission. So I would bet it probably has nothing to do with the wet clutch. Something’s going wrong with your CVT system, so take a peek at that.
I have a 1986 Honda TRX250R, new build and new clutch plates that I soaked, and a new basket. It sat for 6 months and it won't engage. I haven’t run the new build. Any thoughts?
John Talley: So the plates are not in contact enough for it to actually move. Are you sure you got your plate count right? I don’t think there’s an adjustment disc … to get your stack height. But anyway, I would go back and check the stack height. It sounds to me like you may be missing a disc. Just a thought.
My ‘21 Kawasaki KX 250 will sometimes move when I have the clutch pulled in and the bike is in gear. Do you know what it could be? The clutch is fine when I’m riding.
John Talley: It sounds like she’s not disengaging all the way. And what kind of shape is the cable in? It’s a 21, but how many hours do you have on it? If that cable hasn’t been lubed properly and it’s not getting the full travel, it may have some tension on it even though you released it and it’s not wanting to fully engage. If I’m reading this correct, you’re pulled in and the bike still wants to move, so once again, how many hours are on the bike? Because it sounds like she’s still trying to creep forward, so I wonder what your wear is on the basket and on the cable itself. So take a look at those two, cause once you’re moving it doesn’t matter as long as you’re engaging all the way, but evidently it’s not disengaging all the way.
Want to see more live repair questions answered? See all of Partzilla’s Live Q&A sessions here.