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torque spec for front sprocket?

  #1  
Old 01-24-2010, 08:17 PM
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Default torque spec for front sprocket?

Can someone please inform me of the proper torque for the nut for the front sprocket?

Also, does the fact that the aftermarket rear sprocket does not have the rubber coating pose any sort of problem?

Thanks...
 
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Old 01-24-2010, 11:33 PM
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Service manual has it at 40lbs for front sprocket. What do you mean by rubber coating on rear sprocket? Do you mean the stainless steel or aluminum? Some rear sprockets come in colored red/black/blue. etc. But I don't believe I've seen a sprocket with a rubber coating.
 
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Old 01-24-2010, 11:38 PM
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Another thing, my front sprocket is showing that its a bolt thats you torque it down and not a nut. I hope you mean the bolt.
 
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Old 01-25-2010, 12:39 AM
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I think he means the rubber on the front sprocket. The factory one has it. Any aftermarket does not and that is completely fine. It throws most people off =)....
 
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Old 01-25-2010, 01:59 AM
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Yes, the rubber thing! Thanks...

I must confess I am not the owner of this bike - it is my son's. He is out of state and does not have internet access. He changed out the front and rear sprockets and chain over the weekend. The guy helping him said that his front sprockets are torqued to 150 ft lbs. They torqued his to 100; I found enough snippets on this and another board to determine that 40 sounded right but I wanted to be sure. I told him to loosen the thing up; he has not damaged the bike by over tightenning the bolt, has he?
 
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Old 01-25-2010, 08:39 AM
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As long as he didnt strip anything in the process you should be fine.. I wouldn't run it too long with it that tight because its stress on the tranny. But if he just did it he should be fine!
 
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Old 01-25-2010, 12:06 PM
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o.O 150 lbs!!!!!! *^%O!HG)Q*([email protected]%HP!HI(G)QYO!#^[email protected]

Holy cow, it is 40 from top of my head. I did the swap after buying my bike too. There is Incognito's thread in here https://cbrforum.com/forum/how-mechanical-40/chain-sprocket-swap-97641/
You can find all info. It was my guide to the swap.
 
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Old 01-25-2010, 12:40 PM
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Originally Posted by yog182 View Post
As long as he didnt strip anything in the process you should be fine.. I wouldn't run it too long with it that tight because its stress on the tranny. But if he just did it he should be fine!
It doesn't stress the tranny in any way...
 
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Old 01-25-2010, 04:14 PM
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Originally Posted by brveagle View Post
It doesn't stress the tranny in any way...
How to you figure sportsfan? If you over torque something it takes that much more to spin it..
 
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Old 01-25-2010, 08:08 PM
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Originally Posted by yog182 View Post
How to you figure sportsfan? If you over torque something it takes that much more to spin it..
It's just torque on the nut that holds the sprocket on.
 
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