If you put straight 2-stroke oil into your fuel tank, rather than a gas/oil mix, you have significantly increased the flash point of your fuel. I hope by now you've drained the tank and replaced it with straight gasoline. This won't hurt anything but the spark plug which will have enough oil on it to impede the spark. None of this, however, explains the backfire.
2 stroke fuel in 4 stroke engine
- Thread starter david1095
- Start date
Beamster
Active Member
There is really not much oil in there; certainly much less than a hand me down Ford Fairlaine that my girl friend's father burdened me with in high school passed through worn rings. I had to put plug seat extenders to get the spark plugs out of the combustion chambers where all the oil was, and yet it started every time.
For quick reassurance, check plug the sparkplug and see if it shows any signs of fouling, but my guess would be not.
For quick reassurance, check plug the sparkplug and see if it shows any signs of fouling, but my guess would be not.
4getgto
Well-Known Member
I think some people call the fire department before they see if there's any smoke..