Front sprocket moving in neutral - 600RR.net
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post #1 of 12 (permalink) Old 02-10-2009, 09:59 PM Thread Starter
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Front sprocket moving in neutral

So i took the chain off my bike cause i was removing the swingarm to get it powdercoated..so once i got the swingarm back on..i started it to warm it up..and the front sprocket was moving in neutral and the mph was goin up when the rpm would go up..so i was wondering what the deal was with that...
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post #2 of 12 (permalink) Old 02-10-2009, 10:06 PM
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Don't know what the deal is with the mph goin up, but the sprocket moving is normal.
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post #3 of 12 (permalink) Old 02-10-2009, 10:18 PM
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if the sprocket is moving, of course you will have a mph reading... if you have stands and the bike is runnin in neutral, if you rev it, your rear tire will slightly spin.

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post #4 of 12 (permalink) Old 02-10-2009, 10:23 PM Thread Starter
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so once i get the new chain on there it should go back to normal?
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post #5 of 12 (permalink) Old 02-10-2009, 10:57 PM
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don't sweat it. Normal
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post #6 of 12 (permalink) Old 02-10-2009, 11:01 PM
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Quote:
Originally Posted by FoxRacer1606 View Post
so once i get the new chain on there it should go back to normal?
correct, with the extra weight and resistance, in neutral, it will not move unless the idle is high. completely normal.

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post #7 of 12 (permalink) Old 02-10-2009, 11:27 PM Thread Starter
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sweet...thanks alot guys
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post #8 of 12 (permalink) Old 02-11-2009, 09:46 AM
 
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it will also turn on a stand if the bike is cold.
the cold oil will cause drag on the clutch plates which will cause them to spin a little.
as the bike gets hotter it will spin less
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post #9 of 12 (permalink) Old 02-11-2009, 10:38 AM
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Omg!!! Dont Ride The Thing, It Will Explode! :) j/k, its fine.
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post #10 of 12 (permalink) Old 02-11-2009, 12:47 PM
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Quote:
Originally Posted by RShackleford View Post
it will also turn on a stand if the bike is cold.
the cold oil will cause drag on the clutch plates which will cause them to spin a little.
as the bike gets hotter it will spin less
Sorry but the clutch and neutral are 2 different things. You're right... cold oil causes more drag but it's in the tranny... not the clutch. The clutch lever is out which means the clutch is not slipping at all.

Even though the bike is in neutral... the gears are close together in the tranny that when you pour oil on them ( which the bike does) the oil between the gears is enough to get them to spin.

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post #11 of 12 (permalink) Old 02-12-2009, 08:27 AM
 
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he never actually said whether it is clutch in or out. however you are right.
the front sprocket will spin on a stand whether the clutch is in or out if the oil is cold.
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post #12 of 12 (permalink) Old 02-16-2009, 08:03 PM
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i just discovered this phenomenon last week when i had my bike up on the stands.. scared the hell out of me so i had to call my ex-yamaha r6 buddy. told me it was normal as you all sugguested
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