jaredmahone wrote:
I'll try the gravity feed tomorrow. Any suggestions if it's surging and sputtering even with a gravity feed? Thank you for the help.
To answer several questions there are much smarter guys here. They often link to a different website. Might be a cummins site. Im sure that link is coming soon.
Can you clarify how old the different gasoline is inside your tank? Might be a mix of old and new.
The part that bothers me is im pretty sure you have 100% fresh gas feeding the genny when you bypassed the tank and used your own fuel jug.
Top of my head things to check:
1. Double check the spark plugs. I had a motorcycle running rough. Decide to check spark gap. Looked a little tight. I stick the feeler gauge in there and the entire electrode could move up and down!!! Never seen anything like that. Visual inspection did not confirm the failure. I had to physically move the electrode. Its possible 1 or 2 of your plugs needs replacing, even if the other guy inspected them visually. Did you see him gap the plug? Or just check to see how black it looked?
2. Make sure the plug boots are tight.
3. Start researching how to ohm test parts of the ignition. Maybe this is an intermittent spark issue.
4. Compression test or even better a leak down test. I believe this is a used unit that has always run a bit rough?
5. This should be done when you check the plugs but also make sure both plugs are getting spark. Touch the bottom of the plug to bare metal when you turn over the motor.
