If the fuel is draining back he should have air at start up. No air would indicate it's not draining back. So something is causing it to take 5 seconds to build pressure, maybe a bad LP
Had a job awhile back that I could have used this boring bar on. So now that I don't need it I have it setup. Lol
also got more tool holders and a storage cabinetand here I have a couple more boring bars I might get set up