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General Category >> Rubber Side Down! >> Re: Petcock repair kit
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Message started by DoomyDeth on 05/27/14 at 23:06:23

Title: Re: Petcock repair kit
Post by DoomyDeth on 05/27/14 at 23:06:23

Does the vac assisted petcock affect your AFR?
i have the vac line plugged on both ends and it set to prime atm but it's not running like it used to. i assume with it setup as i have it its the same as a manual valve

i have weird points where it wants to idle high(2k ish it slowly builds up) then it will go below 1k or cut out when i coast with clutch in.

Title: Re: Petcock repair kit
Post by Dave on 05/28/14 at 03:32:42

The stock vacuum petcock does not change the AFR if the diaphragm is good and there are no air leaks in the vacuum hose.

Your situation sounds like you have an air leak somewhere. How well do you have the vacuum port on the carb sealed?

Title: Re: Petcock repair kit
Post by DoomyDeth on 05/29/14 at 06:12:46

next time i hit napa ill grab a couple real vac caps to rule that out all i had on hand was duct tape.