rear wheel alignment

[cntryboy85]

i just tightened my chain up and am having problems getting my wheel back in alignment. it looked pretty straight until i took it out yesterday after i was done and had to use the rear brake and the bike wanted to shift to the right and then when i got back on the gas to get out of the other cars way it wanted to go to the left. i have tried measuring the amount of stud coming out of the end of the tension er but for some reason my right one is longer than my left on. is it supposed to be that way or are they supposed to be the exact same length. now this is my first bike and have had it less than a year but i am a mechanic for a living and the way i have always seen stuff like that is they are made the same and cant see this being any different. any help would be appreciated.

[buzzawak]

The adjuster are ment to be the same and counting the threads on the stud is a common way of setting the wheel tracking.
If the studs are different lengths it is likly you have one from a difference model.
I prefer the string method to check for wheel tracking, it make sure both wheels are a-lined.

[cntryboy85]

how would you do that? ive never heard of that. and you might be right i might have one from a different year or even a different bike all together.

[Gizzard1533]

I dont like the string method my self. What i do is use a tape measure to measure from the centre of the rear axel to the centre of the swingarm pivot bolt. The readings will be the same once the wheel is aligned correctly


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[cntryboy85]

might have to give that one a try because every thing i am trying isnt working and i am missing bike night tonight because of this

[pefrey]

I dont like the string method my self. What i do is use a tape measure to measure from the centre of the rear axel to the centre of the swingarm pivot bolt. The readings will be the same once the wheel is aligned correctly

This is not accurate because the swing arm is not symmetrical. The sprocket side bows out a little more. In the pic below, the FZR600 swing arm is on the right. The 90 FZR400 swing arm is in the middle.



Even if your wheel is dead center, if your frame is twisted or bent it will not be in alignment with the front wheel. The string method is the best way to figure this out for real. Google "Wrenching with Rob Chassis Alignment" and you'll get a great article on how to check your chassis.

[Gizzard1533]

I dont like the string method my self. What i do is use a tape measure to measure from the centre of the rear axel to the centre of the swingarm pivot bolt. The readings will be the same once the wheel is aligned correctly

This is not accurate because the swing arm is not symmetrical. The sprocket side bows out a little more. In the pic below, the FZR600 swing arm is on the right. The 90 FZR400 swing arm is in the middle.



Even if your wheel is dead center, if your frame is twisted or bent it will not be in alignment with the front wheel. The string method is the best way to figure this out for real. Google "Wrenching with Rob Chassis Alignment" and you'll get a great article on how to check your chassis.

I've never had any issues with it. I never mentioned about it being in line with the front wheel. That method i use it get the rear wheel square. The distance will still be the same from either side as i dont think mr yamaha would want his axle running on the wonk now???

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