weird shuddering problems at low engine speeds

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07-11-02, 08:51 PM

82streetracer

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weird shuddering problems at low engine speeds

OK, speed dosnt matter. But trying to cruise at any rpm below 3k the car will sort of buck and rock. I disabled the shutter valve. But this seamed to have started with my new fuel pump and reg.

any thoughts?

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07-11-02, 09:01 PM

jeremy

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whats your regulator set at? sounds like you're flood the carb.

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07-11-02, 09:31 PM

82streetracer

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the thing idles fine at 750. even with the reg cranked the thing will still idle. I dont have a pressure gauge so I am going on seat of the pants dyno.

I was running really lean for a while without knowing it.

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07-11-02, 09:53 PM

mar3

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You need to PM sterling...it's definitely carb related, one of the fuel circuits not getting the right vacuum or perhaps debris caught in the needles so they can't seat...

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07-11-02, 09:53 PM

mar3

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You need to PM sterling...it's definitely carb related, one of the fuel circuits not getting the right vacuum or perhaps debris caught in the needles so they can't seat...