Quote:
Originally Posted by ChaseSpicer
DannoXYZ, Ducatiman, JKV45
So I've actually been jump starting the bike with my car battery so the motorcycle battery should't be an issue at least at the moment. Earlier today I ran a few fuel flow tests from the petcock lasting 30 seconds each. (Test 1) First I attached a seperate line to the petcocks vacuum port and inhaled through it with the fuel line disconnected from the carb after the inline fuel filter. (Test 2) Next I detached the fuel line at the petcock and inhaled through the vacuum line I connected. (Test 3) And finally I reconnected the vacuum line to the carb and cranked the motor catching fuel as it came out of the petcock. The results were as follows.
(SNIP)
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If you mean you have a dead battery, and are jumping it to start it, a dead battery will give you problems even after it's running.
If you have a dead or failing battery, replace it before doing much else.