Adjusting the chain - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 6 (permalink) Old 05-19-2008, 05:13 PM Thread Starter
 
Join Date: Apr 2007
Posts: 19
Adjusting the chain

Hi fellas! I have 1500 miles on my 07 GSXR750. I recently brought the bike into a dealer to get my chain adjusted as there was a lot of play in the chain. Now, after the adjustment, while in neutral, there is absolutely no play or slack in the chain. Has my chain been correctly adjusted? Should there be a little bit of play / slack in the chain? Also when I looked at the adjustment notch on my swing arm, the right (flat locking washer set in the recessed area) is not sitting square but rather has dug a bit into the recess in the swingarm probably due to the tightening of the wheel spindle. Because of this the notch marker on the top is almost hidden behind this lock washer and the bottom notch (marker) is visable. Now the other side where the nut is is perfectly square inside the notch. Is this normal? Or was the nut overtightened? And because of the right side lock washer not being straight I cant tell if the wheel is on dead-center. If the right side is like 1/32" off will this affect the stablility / performance / rider safety? Please advise.

Thanks
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post #2 of 6 (permalink) Old 05-20-2008, 04:09 PM
 
Join Date: Jan 2008
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I ride a K7 600, and it calls for 0.8-1.2 inches of play while on the side stand. I'm pretty sure the 750 will have similar specs, however you should probably check your owner's manual. Sometimes, the specs are also printed on the safety sticker located on the plastic chain guard on the left side of the rear wheel.

As far as the adjustment notch on the swingarm, you should post some pictures of what you're talking about, it's kind of hard to visualize what you're describing.
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post #3 of 6 (permalink) Old 05-21-2008, 12:18 AM Thread Starter
 
Join Date: Apr 2007
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Thanks for your reply. I did look in the owners manual and yes it does specify 0.8 - 1.2 inches of play. Sitting on the stand it has hardly any play in the chain. I really think that the tech. over adjusted the chain. What are the symptoms, if any of overly tight chain?
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post #4 of 6 (permalink) Old 05-21-2008, 10:13 AM
 
Join Date: Jan 2008
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I don't think there really are any symptoms of an overly tight chain. The bike will run and perform the same, it's just that the chain will wear out faster. It's very easy to adjust, I'd recommend going and re-adjusting it. If you don't know how, it describes the process in the owner's manual. It really only takes about 5 minutes (if that) to adjust, so it's worth looking into.
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post #5 of 6 (permalink) Old 05-21-2008, 04:11 PM Thread Starter
 
Join Date: Apr 2007
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Thanks, you've been very helpful. I'll read the owners manual and see if I can do the chain adjusting myself.
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post #6 of 6 (permalink) Old 05-21-2008, 06:36 PM
 
Join Date: May 2008
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Sounds like a combination of factors. I think the typical chain slack spec seems a bit loose to the typical rider. So some dealers when receiving complain of excessive chain slack really tighten 'er up to prevent a comeback of the customer saying 'what the heck it's still loose what did I pay you guys for'. The notching you described is probably overtorquing of the axle nut. They certainly do not want that nut loosening up since that is a major liability concern.

Right on adjustment isn't typically that difficult. Proper torque on the axle nut is important so if you have an accurate torque wrench that would be a good tool to use.
porcupine73 is offline  
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