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Wont go past 9k RPM ????

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  #1  
Old 04-03-2012, 05:20 PM
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Default Wont go past 9k RPM ????

The bike is running smooth but it wont go past 9k RPM When its in gear, It sputters out and backfires. When its in neutral it runs perfectly fine. Also sometimes it will die when I come to a stop, It even would turn off sometimes when I put it in gear- (Its not doing that anymore tho).

It was running flawlessly. I removed the gas tank to strip and repaint it, I put it back together and now its doing this. When I reinstalled the petcock it was sticking, after I got fuel running it stopped sticking

Any Ideas?


Edit: I, Checked the votage on the battery. Its at 13v when off and goes up to 14v when turned on. When I rev it it will go down slightly but still stay at 14. And It will only bog out in gear, its totally fine in neutral. When I turn it off, it goes back to 13v

According to this trouble shooting chart --> http://www.offwidth.co.uk/bike/gener...lt_finding.pdf .....MY charging system is perfectly fine. It goes above 13.5v @ 2500 rpm and stays below 14.8v @ 5k RPM.
 

Last edited by (951) Baby Shortee; 04-03-2012 at 07:52 PM.
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Old 04-03-2012, 05:51 PM
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sounds electrical, like a bad battery or bad coils
 
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Old 04-03-2012, 05:55 PM
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I did connect the headlights directly to the battery, but with a switch, a fuse and a relay. It does it even when I have the headlights turned off.
 

Last edited by (951) Baby Shortee; 04-03-2012 at 07:29 PM.
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Old 04-03-2012, 07:23 PM
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check your side stand switch. maybe it doesn't have a good ground and it's trying to kill the bike when it's in gear cause the bad ground makes it think the stand is down?
 
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Old 04-03-2012, 07:26 PM
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Originally Posted by filthydanger
check your side stand switch. maybe it doesn't have a good ground and it's trying to kill the bike when it's in gear cause the bad ground makes it think the stand is down?
Would that make it not want to go past 9k RPM???
 
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Old 04-03-2012, 07:43 PM
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if it's "totally fine" in gear and when you take it out of gear the problem starts, then yea. bad grounds are mysterious and puzzling, like women
 
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Old 04-03-2012, 07:47 PM
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Originally Posted by filthydanger
if it's "totally fine" in gear and when you take it out of gear the problem starts, then yea. bad grounds are mysterious and puzzling, like women
No, It wont go past 9k when it is IN GEAR. When it is in neutral it will redline and run totally fine.
 
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Old 04-03-2012, 08:14 PM
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test your side stand switch. find where the three wires connect under the gas tank. when the stand is up there should be continuity between the greenwhite wire and ground. if there is resistance then that could be cutting the power to you ignition. if that doesn't help take the greenwhite wire and ground it, and that will override the side stand switch, but don't leave it that way cause kick stands can affect your left turns.
 
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Old 04-04-2012, 05:08 AM
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Make sure the 2 breather hoses on the tank are not kinked or squashed. I'm only suggesting that because you said you pulled the tank and it does sound like a fuel related problem.
 
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Old 04-04-2012, 08:04 AM
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I think it's a miss in timing and carb mixture... I was dealing with the same crap and it ended up being not a hot enough spark for the volume of air to fuel going to the motor
 


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