Rear wheel alignment... Not adding up - Honda CBR 300 Forum
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post #1 of 9 Old 07-09-2019, 11:52 PM Thread Starter
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Preface, I'm not a complete noob, but I'm also not a professional mechanic, I fall somewhere in between, probably around weekend tinkerer... So this isn't my first rodeo. Lol

Just got finished installing a new chain and sprocket kit. I ordered a motion pro alignment tool with my drive kit... Normally I just use the adjuster blocks, but I decided to give this thing a try....

Either I'm using the tool completely wrong, or my adjuster blocks are no where near accurate.

Is this normal for this bike? See attached pics
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post #2 of 9 Old 07-09-2019, 11:58 PM Thread Starter
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PS, I have not yet tried checking it with the axle tightened down... I'm about to have dinner, so I will check that later if any one asks about that.
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post #3 of 9 Old 07-10-2019, 03:30 AM
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Quote:
Originally Posted by Chad Baldwin View Post
Preface, I'm not a complete noob, but I'm also not a professional mechanic, I fall somewhere in between, probably around weekend tinkerer... So this isn't my first rodeo. Lol

Just got finished installing a new chain and sprocket kit. I ordered a motion pro alignment tool with my drive kit... Normally I just use the adjuster blocks, but I decided to give this thing a try....

Either I'm using the tool completely wrong, or my adjuster blocks are no where near accurate.

Is this normal for this bike? See attached pics
Those marks can easily be that far out. The accurate way to align your rear wheel is to measure the distance between the swing arm pivot and the rear axle centers on both sides. A tape measure can be handy for this job.
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post #4 of 9 Old 07-10-2019, 09:00 AM
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i have never found the adjusting marks to be accurate on any brand bikes. i have always measured the front of the rear wheel(side to side) in the front part of the rear swingarm using pieces of wood or plywood as measuring shims. never had any problems with chains or tire wear.
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post #5 of 9 Old 07-10-2019, 01:09 PM
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*Cursing self*

OK, the adjuster blocks aren't good to go by. Thanks guys. Reminds me why I don't have that shiny new big boy bike.
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post #6 of 9 Old 07-10-2019, 01:16 PM
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Here is a method, but I have not tried it.
https://www.motorcyclistonline.com/h...-tips/?image=0

I've spent most of my money on women, motorcycles, and beer.
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post #7 of 9 Old 07-10-2019, 02:35 PM
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Here is a method, but I have not tried it.
https://www.motorcyclistonline.com/h...-tips/?image=0
I have used this method but it is a lot of faffing around. It is a good method for checking how far your front and rear wheels are out of (parallel) alignment.
You would be surprised how inaccurate a brand new frame can be. The front wheel on my SV is 10mm to the left of the rear one but that's not too surprising as the previous owner was a crash artist!
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post #8 of 9 Old 07-10-2019, 03:45 PM
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This gives an accurate line for the chain





I use mine each time I adjust the chain.

Don't worry about old age - it doesn't last that long.
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post #9 of 9 Old 07-10-2019, 10:19 PM
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our stamped marks are are not hi-tech and thus only a guide..
as far as chain alignment, all else being equal, those sighting rods
secured to swingarm and sprocket are the obvious answer..
without one tho, one can still take line of sight alignment
by sighting directly along the chain itself [like aiming a rifle]
looking for tell tale bowing of chain either way..

also worth while seeing your at it anyway to use your paddock stand
and run the engine in gear for another sighting dimension,,
which can show other factors static sighting may not show..


i still notice chain/sprockets on parked bikes...
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