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Thread: Weird problem
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Old 04-10-2013, 02:38 AM   #6
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If it's running up to 6K then not fuel. He says it dies after letting off or going to neutral. Could be IAC or TB aircrack carboned up, which are supposed to take up idle throttle when letting off, or could be nothing. I used to hotrod both bikes and cars, sometimes dying after a hard pass was the norm, nothing wrong there at all other than whatever is supposed to maintain idle speed is not working as well as it should. The main reason for damping dashpots on oldschool carbs in the later '70s and '80s was this very thing. They simply made up a device that slowed the engine speed from dropping so fast, a 6000 to 700 rpm drop has a tendency to keep dropping, inertia, you know.
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