Pulling left - another possible fix?

[DCRocket]

New, my bike pulled to the left with both hands off the handlebar - decelerating or with a throttle lock on at speed. At around 25,000 miles I had the output shaft replaced and when I got the bike back it tracked dead straight! Rode it and loved it for another 13,000 miles. Noticed an oil leak coming from the boot where the shaft enters the motor. Took bike in for the seal to be replaced under warranty. Just got the bike back and it pulls to the left again!

Here's my thought: when replacing the output shaft or, in my case the second time, the seal on the output shaft, the swing arm is removed. Could it be that the way the swing arm is bolted back on effects the way the bike tracks?

Any thoughts or suggestions would be much appreciated

 

[dublflush]

I have the pulling to left problem with mine also, and have tried front end and frame adjustments with no luck. It almost makes sense to me that it,s coming from the rear( as tried everything else). Have you talked to your mechanic yet about this? Thanks for the info and keep us posted.

 

[DCRocket]

Well, mechanic says he doesn't know. Only suggestion is to re-check pivot bolt torques - beyond that, I and he are at a loss - and he doesn't think that's the answer as he just torqued them yesterday. Guess I'll double check them myself . . .

Sorry, folks - no answers here

 

[owl]

God knows I'm no techie, but is it possible that a shaft would not be perfectly machined and balanced?

Thinking of the rotational forces of a ceiling fan, I know from experience that when I unbolted the 4 blades for cleaning, and then put them back in a different order, the bastard thing shook fit to bust until I changed them back to where they originally were.

Is it possible for the shaft to be replaced in a different rotational position, and if so, would this make the same sort of difference?

 

[Trirocket3]

Shaft state or position would produce vibes not make it pull to one side.
As engine is structual member, if bolted up out of line
could have a similar effect as a slightly bent frame.

 

[budman]

..lean to the right!..

 

[xhdskip]

:lol: :lol: :lol:

 

[atomsplitter]

Try loosening the axle nut, then re-torque to spec. with the bike on the ground, take it for a spin. Then try it with the wheel in the air. Then take for a ride. See if there's any affect. The alignment sounds off and probably happens when the wheel is removed nd re-installed. There's a bit of play there.

Of course all that disappears if you go dark side. 8)

 

[DCRocket]

"You are DC Rocket, and are from Chicago. How can you possibly be surprised that it wants to go to the left?"

Good one, idk!

Thanks for the suggestion, atomsplitter - another temptation to go CT

 

[Gothlander]

I was looking at the bearings and pivot bolts for the swing arm and it looks like you can adjust them to make the swing arm move left or right.