Got another issue, weekend fast approaching need HELP

This is a discussion on Got another issue, weekend fast approaching need HELP within the Engine/EFI/Drivetrain forums, part of the KFX450 Performance category; Had the issue with it turning over and not getting any spark, solved that one and now it starts fine, runs for about 3 seconds ...


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Engine/EFI/Drivetrain Discuss engine, fuel injection, air intake, and drivetrain modifications here.

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Old 08-31-2010, 10:22 PM
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Got another issue, weekend fast approaching need HELP

Had the issue with it turning over and not getting any spark, solved that one and now it starts fine, runs for about 3 seconds and dies. Just idling or giving it gas doesnt matter, PLEASE HELP
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Old 08-31-2010, 10:24 PM
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Quote: Originally Posted by battle View Post
Had the issue with it turning over and not getting any spark, solved that one and now it starts fine, runs for about 3 seconds and dies. Just idling or giving it gas doesnt matter, PLEASE HELP
And i have already taken apart the rolloever sensor and made sure was in right position, so its a different problem
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Old 08-31-2010, 10:24 PM
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Is the fuel pump working?
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Old 08-31-2010, 10:38 PM
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Quote: Originally Posted by tazz3069 View Post
Is the fuel pump working?
ya its at least getting to the injector, just took off the line where it enters the TPS and its pumping to there at least
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Old 08-31-2010, 11:12 PM
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I had the same problem, my Fuel Pump Relay went bad.
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Old 08-31-2010, 11:34 PM
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Quote: Originally Posted by tazz3069 View Post
I had the same problem, my Fuel Pump Relay went bad.
where is that located on the bike? and did you have to buy replacement or was there a fix?
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Old 08-31-2010, 11:49 PM
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Nose of the bike. Warranty took care of it for me.
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Old 09-01-2010, 05:16 AM
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It's the one with the Yellow/Red wire going in it.

Swap it for one of the ones with a brown wire going in it. (start control relays)

This will mean you'll only be able to start in neutral or with the clutch pulled, depending on which one you use...
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Old 09-01-2010, 11:17 AM
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Or you could just swap it for the fan relay to test it out. They're all the same. They're in a row just under the hood by the top stem mount. If you have any questions shoot me a PM and if I don't know I can look it up in the PDF of the service manual I have. There's a procedure for testing the relays, but it'd just be faster to see if one of the others swapped out works.
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Old 09-02-2010, 12:19 AM
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swapped em out and thats not the problem, guessing im not goin to be up and ready to roll by friday
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