Installing sprocket

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  #1  
Old 03-18-2006 | 07:10 PM
giacoman's Avatar
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Default Installing sprocket

Hi,

I am getting ready to install a 13T sprocket and would like to know the following:

- How much do I need to torque it?
- Is it threaded clockwise or counter-clockwise?

Thanks!
 
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Old 03-18-2006 | 07:18 PM
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Default RE: Installing sprocket

The torque values are typcially 69 ft-lbs for most bikes. that's what I used. However, you will need a impact wrench to get it off. The motor is so small and he bike so light, the torquq required to remove it, will cause the motor and rear wheel to spin... unless you get a friend to sit on the back. With a $50 electric impact wrench... it's a very fast job. Same for removing the rear axle bolt. It's also gets approx 69 ft-lbs.

The countershaft sprocket bolt has standard right hand threads (lefty loosey). Be sure to install teh aftermarket sprocket so that the side with the "shoulder" on the sprocket faces in. Otherwise the chain will rub on the case.
 
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Old 03-18-2006 | 07:45 PM
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Thanks for the info!
 
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Old 03-18-2006 | 08:38 PM
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Default RE: Installing sprocket

If you're poor like me and don't have an impact wrench, just stick a broom handle through the rear sprocket and use the chain to keep the motor from turning.

69ftlb sounds kinda lite to me but I don't have a shop manual. It was certainly on there with more than that. Then again, with the lock ring, it's not going anywhere.
 
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Old 03-18-2006 | 08:55 PM
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ORIGINAL: bmwhd

69ftlb sounds kinda lite to me but I don't have a shop manual. It was certainly on there with more than that. Then again, with the lock ring, it's not going anywhere.
The rear wheel on my ZX9R was 69 ft-lbs. I've seen some sprockets that are 75 ft-lbs, but that's not a big difference. The key here, is LOTS of torque and you probably can't overtighten it.
 
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Old 03-18-2006 | 09:18 PM
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Default RE: Installing sprocket


ORIGINAL: bmwhd
69ftlb sounds kinda lite to me but I don't have a shop manual. It was certainly on there with more than that. Then again, with the lock ring, it's not going anywhere.
Page 110 of the Owner's Manual: 80 ft-lbs.
 
  #7  
Old 03-20-2006 | 12:48 AM
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Default RE: Installing sprocket

Is the nut size 24mm?
 
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Old 03-20-2006 | 01:12 AM
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Did anyone reuse that 'safety' washer that has it's tabs bent around the nut?

80 lb.ft in the rear according to my owners manual, too. Anyone have a KLX250/300 manual that can give us the exact torque spec for the sprocket?

I expect mine in the mail tommorrow !! But she goes in for a leaky left fork seal on Thursday !
 
  #9  
Old 03-20-2006 | 07:09 AM
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Default RE: Installing sprocket

Yes you always use the washer and make sure to bend it over.

deej
 
  #10  
Old 03-22-2006 | 12:38 AM
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Torque spec on sprocket nut ??????????????
 


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