vacuum leak or fuel problem??? - Page 2 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
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post #11 of 13 (permalink) Old 03-22-2020, 12:50 AM
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Originally Posted by Spockster View Post
It can dump enough fuel to overfill the crankcase with gas and oil, not normal.

Un-metered fuel dumped into the intake can't help performance.
Youre Over expecting the volume


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post #12 of 13 (permalink) Old 03-22-2020, 01:59 AM
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Originally Posted by One1 View Post
Youre Over expecting the volume
Huh? Overestimating?

It's just not normal to have fuel flowing through the vacuum line.

It's happened on my own bike, so no need to estimate anything, it filled the crankcase with gas while parked with the petcock turned off.

Almost every major leak starts with a trickle.

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post #13 of 13 (permalink) Old 03-22-2020, 08:53 PM
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Well thanks for all the advice but i cannot figure out the problem with the bike. So i will put tank back on and spray staring fluid around the carb see if i can find vacuum leak if not im going to give up on the old bike. Its to bad its a clean bike with only 5500mi. on it. Again thanks guess i will put it in the corner of the shop and cover it up.
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