350x pulling right

[riverrat]

Sorry for sticking my nose in, I think tire pressure and treadwear are major factors, but i was wondering about this no adjustment in the rear axle? how does that work?, i dont have a 350x but my tri-z has adjuster bolts to adjust the chain tension and axle. how does the 350x axle and chain setup differ?

There is some apparent confusion developing in this thread. When we spoke of adjustment, we meant being able to adjust one side separate from the other. In other words align the rear relative to the frame. Not chain adjustment. That adjusts the whole thing in one shot, not side to side.

Also, way back, I asked if the tire circumference was the same, not the tires themselves. You need to take a tape measure, and wrap them around the tires, and make sure they both have the same circumference. That is how the manual states to tune the tires on the old 110's, and 200's etc. With my 110, I do a wheelie on pavement, and if it pulls to one side, I add air to that side, until it starts to go straight again. With one tire being more worn that the other, I can't see how they would both have the same circumference (with the same air pressure) given they are the same brand/size tires. Unless of course they are so far gone, or worn from sitting flat, that one tire is larger because it is "stretching out" If one tire is more worn, it HAS to have a smaller circumference, hence your problem.

Remember, if one tire is physically larger than the other, it can roll further per revolution than the other, and you will get pull. This "pull" if not the big or dramatic, will only really show up on pavement where the tires are getting full traction. You won't feel it in the dirt.

Short track racers use different air pressure, and tire sizes to make their cars turn better, since they only have to turn one way. That difference in tire pressure, and size is called tire stagger. We don't want stagger since we are turning both ways, and when we want to go straight, we want to go straight. Ever notice NASCARS going down the straights? They look skewd, because of the stagger. Most likely they are holding the wheel, fighting the stagger down the straights. The same feeling you are getting now in your handle bars on pavement.

If you don't fix this pull, all three tires will be working against each other robbing you of speed, and adding to premature tire wear, even on dirt.

[Brianw]

Riverrat that was a great post, Thanks man.

I'm about to go mess with it now I'll get back here soon. I understand what yur saying about the tires being the same size and I'm sure theyre not because one clearly has less rubber on it. The tire 'staggering' was a great reference.

[x200x]

try checking the front suspension, the air valves on the top of the shocks are adjustable, and the air should be exact in both shocks, use a pressure guage, they shoud both be around 20 - 40 psi good luck

[Brianw]

x200x? i read that you probally shouldnt mess with those but if you must 5psi was about right and do not go over 10psi or you'll blow your fork seals...... so whats your take on this?

Pulling problem resolved.

[riverrat]

Wait, you just can't say the problem is resolved without letting us know what is was...

[Brianw]

Sorry got to wrapped up with the fork PSI post.

It was the tire pressure, i upped it in the right and lowered it in the left and it tracks straight as an arrow now, I apprieciate the help!

I like this 350 better than my 250r I just sold! The power is more predictable and usable and i feel alot more comfortable riding it fast because of the power delivery. It does get alot hotter though thats the only down side I can see between them.