Sprocket alignment.

[Mactriple]

I would like to know if there is any convenient way of ensuring that drive chain sprockets are aligned without having to take engine covers off to check. I realise that there is a bit of lateral play allowed for with the chain to sprocket fit, but getting it right would be good to know. I do recall some laser tool being on sale a few years ago but I don't know if it was effective.
Ian

 

[laverdakeith]

Hi Ian the only way to guarentee alignment is with a steel straight edge. First thing to check is wheel alignment, once you have established that is correct then the sprocket alignment can be checked, this will require removal of the chain, chainguard and the gearbox cover then simply lay your straight edge along the sprockets. Lazer gizmos and other miracle time saving devices are generaly no substitute for just getting on and doing the job properly 



    Keith

 

[wdietz186]

A quick and dirty check is to see if the sprocket teeth poking through the chain are centered between the side plates when the wheel is spun.Many things can affect this though, such as rear wheel spacers,cush drive condition,and rear wheel alignment.

 

[andychain]

All good points but your own eyes are perhaps the best guide.

I could set camber to a couple off degrees by eye before age took its toll.

Get on your hands and knees about 10 yards behind the bike and look down the line of the back sprocket
even a slight offset in the chain run will be apparent.

Andy