Trans Trouble

[DAVID146]

My 06 450 feels like the chain is sliping in 4th and 5th. My mech said its might be a shifter fork. Since I have never done the top end, I quess its time to break it down anyone every ran into this and know of anything else to look for, that might be causing the trouble?

[Smokeslider]

Realize that the shifter fork check will require a splitting of the cases so I would double check everything else before you dive into that. If you do have to tear it apart, at least you'll have the opportunity to put in a new cam chain and probably throw in some new piston rings as well. Good Luck.

[MaxPower]

what do you mean by the chain feels like it is slipping

[thumpyz]

check your clutch, it might not be holding the power

[skidooboy]

this is probably your problem.

https://www.thumpertalk.com/forum/showthread.php?t=493718

the picture grey posted used to show the trans shifter stuff, for some reason the host shows a headlamp pic now.

if this is it, it is a very easy fix. ski

[grayracer513]

Actually. it sounds like the trans itself. The indexing pawl could be involved, but if it has a jerking feel under a load in any particular gear, it's generally because the locking lugs on the sides of the gear are worn. This condition normally leads to a damaged shift fork (instead of the other way around)

[DAVID146]

Actually. it sounds like the trans itself. The indexing pawl could be involved, but if it has a jerking feel under a load in anu particular gear, it's generally because the locking lugs on the sides of the gear are worn. This condition normally leads to a damaged shift fork (instead of the other way around)

GRAYRACER513 is right split the case I had two set of gears bad and two shift forks bent. So since its apart I am going to put a new crank and piston in.Trans parts are going to cost 215.00 my cost. Seams like you could buy a hole trans for that price. My wife going to kill me if she sees the bill.

[YZERIK]

if you end up tearing it apart change the timing chain and the rings and check that the valves are in spec.....