clutch

went to put in gear its pulling like the clutch is engaged at idle, now this it the first time since build that I try to move that being said I have a new wet clutch /drum weighted new jbs sheave new belt any thoughts before I start taking back apart thanks

There is a good chance that you have the one-way bearing (sprag clutch) in backwards.

I been thinking what all could be wrong , that's one but I thought when I put the one way in the arrow was facing out of the drum but I will be finding out soon.
but it did sound good setting still ,almost got it out of shop

rhino727 wrote:

I been thinking what all could be wrong , that's one but I thought when I put the one way in the arrow was facing out of the drum but I will be finding out soon.
but it did sound good setting still ,almost got it out of shop

Before you tear it down again you could do a couple of checks. First, if the idle is too high the centrifual clutch will be at least partially engaged when it is just sitting there. Second, a quick check of the sprag clutch orientation is to push the machine with engine off and in a forward gear. It should not roll forward when you push it, but should roll backwards when you push it.

If you do end up tearing it back down, make a mental note of which way the engine rotates as seen from the clutch side. Look at the primary sheave as you crank it over in neutral. when you are putting the wet clutch back together you should not be able to turn the output shaft in that direction, but it should turn freely in the opposite direction (anti-rotation direction).

OK I think its the one way I did the check you said ,mine will roll forward it will not roll backwards . also the idle was maybe 1100rpm which I think would be low

rhino727 wrote:

OK I think its the one way I did the check you said ,mine will roll forward it will not roll backwards . also the idle was maybe 1100rpm which I think would be low

Yep, that sure sounds like a backwards one-way. The idle is indeed low. Yamaha spec is 1600 RPM.

before I had moter on table , frist time doing clutch in place that damn things tight as hell in that nice hole its in

When installing the one way bearing the "Green Dot" should be facing you.

hey Mike sent you pm early today don't know I did that right, but back to one-way when you said green dot facing me are you talking putting in the drum or on the shoe assy thanks Mike an Steve for input

rhino727 wrote:

hey Mike sent you pm early today don't know I did that right, but back to one-way when you said green dot facing me are you talking putting in the drum or on the shoe assy thanks Mike an Steve for input

Yeah Mike, this has bitten a lot of people, going by the threads posted. 'This side out' can be interpreted 2 ways as we can see here. Do you by any chance have a picture that you can annotate to get rid of the ambiguity? A big pointy arrow would be nice! I'm going to be tearing into mine before long ('lead'ing the thing) and I don't want to be one of the 50% that get it backards! Thanks.

OK got apart today the Green Dot does indeed face you , it goes on the shoe assy with the Green Dot facing you as Mike said now waiting on mailman to bring new fixed sheave an be done one more time

Yes Green Dot facing you installed on the clutch, Then install the drum.

ok I ran the mailman down like a rabid dog , got sheave ( thanks James & Nikki) got it back together an fired off , now will try to tune tomorrow maybe
I 'll get it out of shop this time I wanta ride