Please help!!

[REEDracing94]

the perch is the part the levers connected to haha

[JimR]

Originally Posted by MOTOCROSS MAVERICK

Hello all, I hope some one can help me. My YFZ when in gear and I try to start it, when pulling in the clutch it doesnt go into neutral. When putting it in nutral and starting its fine, but jumps when started in gear with the clutch pulled in. Its must be still engaged, but not sure what to look for. Can some one please help?

Also I have removed my neutral switch, so could I have lost ground?

Hi Maverick
so you have a dragging clutch ! so looking at the diagrams supplied via techguy the motor uses a push rod which activates a release bearing against the pressure plate part 6 in the diagram and the bearing being parts 17~19.
which could be a major form of clutch drag. But again looking at the diagrams the plain plates, part 7, it is indicative that they should be lined up correctly with part 5 ( a slight lump on part 7 to its outside and a dot mark on part 5 should all line up. Then take into account parts 13 & 14 they also should be in good condition or replaced
Regards Jim

[MOTOCROSS MAVERICK]

Originally Posted by Wildcardracing

How many hours are on the clutch? If it's not an adjustment issue it could be a worn clutch basket. I have seen them on several quads where the basket it grooved bad enough from contact with the plates that it won't release when the clutch is pulled. I would look into adjustments first though.

I am not quite sure. I would have to guess, I would say 20 hours. When I looked at the plates they looked fine. Felt a littel hard though. Basket is fine. I have a new hinson basket. I did all the adjustments and no go.

Originally Posted by REEDracing94

have you posted on yfzcentral??? i bet they will know.
yfzcentral.com

Ya i did and I swear all of those guys are uppity! I got nothing from them. I have asked for help from them before with no answers. I think you have to live on the west coast to be in the "cool group" i guess.

[MOTOCROSS MAVERICK]

Originally Posted by JimR

Hi Maverick
so you have a dragging clutch ! so looking at the diagrams supplied via techguy the motor uses a push rod which activates a release bearing against the pressure plate part 6 in the diagram and the bearing being parts 17~19.
which could be a major form of clutch drag. But again looking at the diagrams the plain plates, part 7, it is indicative that they should be lined up correctly with part 5 ( a slight lump on part 7 to its outside and a dot mark on part 5 should all line up. Then take into account parts 13 & 14 they also should be in good condition or replaced
Regards Jim

Parts 17-19 i am going to look at. All other parts are in good shape. What gets me is before I took it apart it worked fine. So the only thing it could be was assembled wrong. I took it apart and to make sure it was right and it was.

[JimR]

Originally Posted by MOTOCROSS MAVERICK

Parts 17-19 i am going to look at. All other parts are in good shape. What gets me is before I took it apart it worked fine. So the only thing it could be was assembled wrong. I took it apart and to make sure it was right and it was.

Hi Eric
perhaps its as simple as the plain plates are not lined not lined up with the boss (part 5) I did so many repairs because of this back in the 70's (users fitting new friction plates and not aligning the plain plates) and no clutch !!! £40 per pop then (plus oil & bits) and 15 mins to do !!!
Regards Jim

[MOTOCROSS MAVERICK]

Originally Posted by JimR

Hi Eric
perhaps its as simple as the plain plates are not lined not lined up with the boss (part 5) I did so many repairs because of this back in the 70's (users fitting new friction plates and not aligning the plain plates) and no clutch !!! £40 per pop then (plus oil & bits) and 15 mins to do !!!
Regards Jim

Thank you for the info Jim. I think I am going to go home tonight and tear down the clutch again.

[smikeals81]

I own a 2006 yzf 450 atv I have Lots of bottom end But I have no top end. It revs out fast. The timing has been done and re jetted to the exhaust. I have ran out of ideas.

[QuickMick]

Clutch slipping? I had that happen on my RZ on the top end.

[MOTOCROSS MAVERICK]

That sounds like clutch slippage to me. I would pull out the clutch fibers and see if they are burnt or wore down. Also make sure all the steel plates have pits in them and are not worn smooth. When you get to a certain point in the power band (say half way through the gear) does it seem to just stop pulling and rev out?

[REEDracing94]

have you checked the clutch boss.. my dad pulled mine apart and said the basket and boss was worn