Belt Alignment

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30 May 2007 18:05 #145016 by Tyler
Belt Alignment was created by Tyler
I am having trouble getting the belt to track straight on my 440. If I adjust the back wheel so the alignment marks are even the belt pulls to the outside of the pulley and squeaks when I rotate the tire by hand. When I get the belt to track straight the rear wheel is clearly out of alignment. So is there a easy way to get this right? Do I have to shim the drive pulley to align the belt? Unless the rear wheel is askew to the centerline of the bike the belt pulls ot the outside.

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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  • wireman
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30 May 2007 18:44 #145031 by wireman
Replied by wireman on topic Belt Alignment
check your swingarm bearings for slop that could be letting things out of square.i dont trust the stock adjustment marks,use a straight line to align wheels;)

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31 May 2007 08:00 #145200 by Tyler
Replied by Tyler on topic Belt Alignment
Already checked that out, the swing arm is like new.

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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31 May 2007 10:00 #145222 by hwms
Replied by hwms on topic Belt Alignment
If it has axle spacers check out. sounds like wheel is spaced too far to right.

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31 May 2007 11:17 #145238 by Tyler
Replied by Tyler on topic Belt Alignment
I was kinda thinking the same thing. So what is the best way to correct that? Machine the right side spacer down and put a washer on the left?

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

Please Log in or Create an account to join the conversation.

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31 May 2007 12:56 #145266 by hwms
Replied by hwms on topic Belt Alignment
I would determine which way the wheel may be out of line, IE: right or left (facing toward front of bike) and then reduce the space. As I said, it would appear that the wheel may be too far to the right. If so, reduce the space on the left and add to the space on the right.

Make sure that the drive pully is all the way on the output shaft.

Post edited by: hwms, at: 2007/05/31 15:57

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