I just put a 15 tooth front sprocket on my '09 GS500F and I had to adjust the chain. I adjusted it properly as far as I know, but if I didn't adjust it correctly and the rear Wheel isn't straight, will I know? I imagine the bike will wobble as it would seem like the rear wheel is trying to steer for me. I would go road check it right now but its snowing...

If the rear wheel is turned a bit your handlebars will be turned a similar amount to correct when running straight down the road and the bike will be running doggy down the road, rear wheel offset from front.

When I'm done with wheel alignment I place a steel yardstick across the rear tire just below the chain extending forward towards the front sprocket.  Chain should be the same distance from the yardstick edge all the way forward if alignment is good.

Quote from: gsJack on April 05, 2013, 04:31:53 PMWhen I'm done with wheel alignment I place a steel yardstick across the rear tire just below the chain extending forward towards the front sprocket.  Chain should be the same distance from the yardstick edge all the way forward if alignment is good.

This is a good method, just be sure your yardstick is nice and straight.

Alternately, take a piece of string and use it to measure the distance between the rear axle and the swingarm pivot on either side. It should be the same distance.

I use a piece of string about 12 feet long.  Tape the center of it to the back of the rear tire a few inches above the ground.  Then have a friend hop on the bike and hold it up right with the front wheel straight.  Lay down in front of the bike looking down the tires and pull both pieces of string tight against the back tire.  They should be equally spaced from the front tire if all is properly aligned.  You will get very funny wear on your tire if it isn't aligned right.  You will also have the rear end step out to the side -the same side the back tire is favoring due to misalignment- during emergency braking when the rear wheel is just about to start floating, possibly causing a high side.

Perfect solutions. I'll check the alignment and let y'all know how I did. Thank you all!