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Help Please
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jayson14
New User
| Posts: 4
| Joined: 09/08
Posted: 09/27/08
12:23 PM
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I just the top end of an 84 CR250R and I cannot get it to idle, I have cleaned the carb and the jets twice, I chan adjust the mix screw on the Keihin PE 36 caeb to no avail and I when I screw in the Idle adjust screw it has no effect. I can keep the bike running with the throttle and it runs excellent when I reach 50% throttle but let off of the gas and it stalls out. I am beating my head against the wall. I am running premium gas with synthetic oil and octanr booost. Any sugestions
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92rm125
Addict
| Posts: 4481
| Joined: 03/08
Posted: 09/27/08
12:30 PM
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Right, what premix ratio are you running?
And what jets are in there now? Ie. main and pilot?
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MJP68
Addict
| Posts: 2034
| Joined: 10/07
Posted: 09/27/08
12:37 PM
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did it idle before?? what top end components did you replace and why??
you may need to break it in a little bit before
adjusting the idle JMO
![MJP68]()
post count means nothing
06yz125,kx60(2)
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jayson14
New User
| Posts: 4
| Joined: 09/08
Posted: 09/27/08
12:37 PM
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I am using a 30 - 1 premix I know that this is a little rich but I just replaced the piston, Rings, and honed the Cylinder,
Main Jet = 152
Slow jet = 68
Needle Jet = ??
Needle Clip pos 2nd from the top
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MJP68
Addict
| Posts: 2034
| Joined: 10/07
Posted: 09/27/08
12:40 PM
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how was it running before the top end work??
![MJP68]()
post count means nothing
06yz125,kx60(2)
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jayson14
New User
| Posts: 4
| Joined: 09/08
Posted: 09/27/08
12:41 PM
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I should mention that I just bought this bike in parts as a project bike. The guy that I bought it from said that it was running good, but It had some oil leaks from the right side into the case I fixed all of those problems. So far everything that I was told about the condition was spot on so I believe him when he says that it was running good.
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MJP68
Addict
| Posts: 2034
| Joined: 10/07
Posted: 09/27/08
12:48 PM
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but it wasnt running when you bought it correct???
![MJP68]()
post count means nothing
06yz125,kx60(2)
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jayson14
New User
| Posts: 4
| Joined: 09/08
Posted: 09/27/08
12:50 PM
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Correct
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MJP68
Addict
| Posts: 2034
| Joined: 10/07
Posted: 09/27/08
12:59 PM
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complete the break in process, be patient.
you may need to clean the idle circuts in the carb
(remember that bike is 24yrs old)
![MJP68]()
post count means nothing
06yz125,kx60(2)
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josh16
New User
| Posts: 2
| Joined: 09/08
Posted: 09/29/08
08:45 PM
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try running without octane booster.
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