front sprocket spins in neutral - 600RR.net
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post #1 of 10 (permalink) Old 03-11-2006, 01:01 AM Thread Starter
 
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front sprocket spins in neutral

Ok i just reinstalled my swingarm, a 520 15 tooth front sprocket, installed gilles rearsets in gp shift mode and a speedo healer and my front sprocket is spinning while in neutral and the speedo reads 2-3mph WTF??? i dont have a chain on yet is that why? I dont understand how the front sprocket can spin if the bike is neutral. did the gp shift screw something up? Help!
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post #2 of 10 (permalink) Old 03-11-2006, 01:48 AM
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I think thats normal. If you had the chain on it wouldnt do that. I think if you put the bike up on a stand with the chain connected, the back wheel will turn a little bit in neutral as well.

Again, if you put the chain on, it probably would read 0 on the speedo because the sprocket would stop spinning.

"It seemed like a good idea at the time."

Last edited by HomerSaurus; 03-11-2006 at 01:55 AM.
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post #3 of 10 (permalink) Old 03-11-2006, 01:50 AM
 
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Yes this is normal by bakc tire always spins in nuetral when its on a stand.

YOu havew a constant mesh transmission so even though you are in nuetral there is still some gears spinning and since they are all conected(in a way) it transfer a bit to the contershaft and then out tot he sprocket. Nothing for you to worry about
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post #4 of 10 (permalink) Old 03-11-2006, 01:55 AM Thread Starter
 
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phew.... thanks. i thought i f'ed something up.
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post #5 of 10 (permalink) Old 03-12-2006, 09:32 PM
 
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Quote:
Originally Posted by 66RRJOE
phew.... thanks. i thought i f'ed something up.
i hate when that happens
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post #6 of 10 (permalink) Old 03-12-2006, 10:02 PM
 
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yea, it's already settled, but mine does the same on the rear stand... i was freaked too :)
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post #7 of 10 (permalink) Old 03-12-2006, 10:13 PM
 
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Ya just happened to me last week after I put a new clutch in the bike with no wheels and chain on the bike I thought Id screwed up the installation of the clutch till I investegated a little closer to figure out what was going on.
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post #8 of 10 (permalink) Old 03-13-2006, 01:36 PM
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Joe, Did your front sprocket fit a little loose? After you tightened up the bolt was there some play in the front sprocket? Or was it solid, no movement at all..
post #9 of 10 (permalink) Old 03-13-2006, 11:41 PM Thread Starter
 
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it seems pretty solid to me, i am still waiting on a chain to find out if it still does it.
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post #10 of 10 (permalink) Old 03-14-2006, 02:49 PM
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What you're seeing is 'drag' in the transmission caused by the engine oil. Sometimes this will even turn the rear wheel via the chain, other times the drag/resistance in the chain and rear wheel is enough to stop it from moving. Warming up bikes on stands with tyre warmers on you often have to hold the rear brake to stop the wheel turning. It's nothing to worry about.
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