trans hub tracking

[05 old dog]

where does the belt ride on everybodys transmission pulley?? cant seem to get mine anywhere near the center...it wants to track about 1/8 inch from hub edge on tranny housing side!!

 

[Moespeeds]

Shoot for centered on the rear pulley. The front doesn't matter much as long as it's not riding up the lip.

 

[05 old dog]

thanks moe that is where im at...rear is centered but front is riding the inside edge...

 

[woodbutcher]

closer to the inside edge, the less strain is being put on the shaft cause it is closer to the bearing. imho

 

[05 old dog]

thanks anybody else? i know you guys have had your clutch covers off...how close to the tranny is to close...im worried that spinning over on stand and having it ride the edge...what happens at 80mph....and i thought i had it centered on the rear hub but i dont...its riding just off the lip of the rear pulley on the wheel side...if i try to adjust it out to center the belt moves in on front pulley and almost rubs...also to get it to ride in exact center you can visualy see that the rear wheel is running crooked....it takes a lot to move it to center...is it possible my new belt is wrong or pulling the belt left? it shouldnt be this hard to line shit up!!!!

 

[05 old dog]

ive still got the old belt...think when my buddy gets off work ill get some help and change belts and rule out the belt...

 

[Five Five]

Got any pictures

 

[05 old dog]

thats one thing i really suck at is uploading pics....wheres your belt riding on your hub bill?

 

[Five Five]

thats one thing i really suck at is uploading pics....wheres your belt riding on your hub bill?

Mine is tracking about 1/4" away from the end of my trans pulley. I align my rear wheel to track straight to my front wheel

 

[05 old dog]

how?...i aligned my tranny with my swingarm pivot bolts then aligned my rear wheel with the swingarm pivot bolts...im tracking right on edge of tranny hub.

 

[Brew]

Not sure why you would use your swing arm pivot bolt to align your tranny. I use my primary back plate to align my tranny with the motor and check shimming on the tranny. Then I would use the swing arm pivot bolt to align the rear wheel. JMHO

 

[05 old dog]

brew i had motor and tranny out so i used the pivot bolt to square the two...the motor and tranny are tied together with a karata motor plate.

 

[Brew]

Oh I copy...:2thumbs:

 

[05 old dog]

if you have a better idea im ready to try anything...lol

 

[Five Five]

Billy sounds like your performing the right steps. What changed ? Has it always tracked that way ?

 

[Five Five]

Upon visual inspection of your trans pulley does it show any wear ?
There may be a slight taper causing the belt to walk outward

 

[Bowhunter]

Since your motor and trans have been off the bike, now that the two are again mated parallel to each other, is the inner primary plate parallel to the frame? It is possible that you have the motor and trans mounted perfect to each other but both are out of alignment to the frame and that would make sense why the belt tracks inward. Just a thought.

 

[05 old dog]

no...it ran about 1/4 inch off edge of pulley....new belt?

 

[05 old dog]

steve i think your right...but ive got both pushed as far to clutch side as mounting holes will allow...its damn close but not right.

 

[Moespeeds]

Is your transmission shimmed properly? Don't worry about it if it's touching the lip on the pulley, as long as it's not climbing. If it climbs, you'll know it. Lift the rear, spin the wheel forward, then reverse, and watch the belt at the front. As long as it doesn't climb, you're good. There is no way to adjust or modify the way the belt tracks on the front pulley, aside from having an improperly shimmed transmission, or spacing the rear pulley. The belt's position is determined entirely by how it tracks on the rear. That's why front pulleys are so fat, to compensate for differences and warping from frame to frame. I did a thread somewhere on how to properly align your belt, and it's not the way most guys do it by measuring in 100 places. The goal is to simply get that belt to track the same on the rear pulley, whether you spin the rear wheel forward or reverse. In a perfect world, it would track exactly the same forward or reverse, but that's usually not the case, so the goal is to get it about a credit card's thickness off the outside or inside lip on the rear pulley, and no climbing in reverse.