CBR 600F2 1991 - 1994 CBR 600F2

Weird RPM problem

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  #1  
Old 11-29-2007, 07:59 PM
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Default Weird RPM problem

Hey everyone so the 94 F2 has been running like a champ but a strange problem started happening yesterday, basically when I get the engine warmed up and I pull the clutch in or put it in neutral the engine revs itself up to 4k rpm maybe a bit more, it continues to do that. The engine has been running the same tempeture for a while although now with it's revving as high as it does at stops it get hotter. Plenty of fluid in the radiator and I haven't changed anything. Garage kept no rain, I have no idea what this could possibly be, anyone here have any ideas. Thanks for the advice, going to sit down and take a hard look tomorrow.
 
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Old 11-29-2007, 09:20 PM
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Default RE: Weird RPM problem

Try playing around with your idle ****...see if it does anything.
RB
 
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Old 11-29-2007, 10:15 PM
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Default RE: Weird RPM problem

stupid question but...uhavnt been leavinthe choke on have u???
 
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Old 11-29-2007, 10:38 PM
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Default RE: Weird RPM problem

Played with the idle ****, does nothing except drop the rpm down and then it pops right back up, and the choke isn't on.

and things just went from bad to worse:

I went outside on the porch and there was a strong smell of gas coming, I look under the motorcycle and there is a small puddle, all the gas in the engine leaked out and there was still gas in the tank, petcock was set to off. I start it in a few seconds after I put the petcock into the on switch and it immediatly on a cold engine revs to 6k and starting reving higher slowly. The weird thing is that the throttle is responsive and snaps back but it won't go below 6k, damn I'm in a for a long weekend I feel and I was supposed to relax all weekend. Any ideas are greatly appreciated.
 
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Old 12-04-2007, 11:46 AM
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Default RE: Weird RPM problem

Crack it open. Remove tank & airbox. Take your time,it's not hard.Can't diagnose something like this until someone takes a look.
 
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Old 12-09-2007, 04:02 PM
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Default RE: Weird RPM problem

Well I cracked it open a few days ago and I got the problem fixed, I synced the carbs up as well as cleaned them and it runs amazing. Now if I could only leave work so I can ride it.
 
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