Onan 4000 generator cranks but won't start
Hi all, I have a 2015 Cummins Onan RV QG 4000 generator. It has somewhere between 300-1000hrs (not sure, I've only owned it for about 2 years and it was a previous rental...might not be the origin...
Forum Discussion
enblethen wrote:I agree with Bud, try the compression tester on your lawn mower and see what it reads, if zero and mower runs fine there is some thing wrong with your tester. How many hrs on your genset?
I am guessing the "compression tester" screwed into spark plug hole.
Sounds like it could be a stuck valve in open position. Most likely an exhaust valve.
