Feedback Score: 0 reviews
Join Date: Apr 2011
1988 Bayou 300 Backfiring above idle
I have a 1988 Bayou 300 2WD that runs fine at idle and runs fine once get above 1/4 throttle. As it warms up it does better and better but never running like it should. The problem is always at about 1/4 throttle, it spits sputters and backfires until I get rpms higher then runs fine whether in gear or idling. It will run like a scalded dog as soon as you get past the sputter. Runs fine at top speed unless you let the rpms get down due to gearing you can feel it while rolling almost top speed but in 5th gear as the rpms lower a little if you slow down some and try to get back into the throttle once speed/rpms elevate goes back to running normally. I have had the carb rebuilt, everything seems to be adjusted properly, has a new stater, new plug, new fuel filter, new fuel lines, new fuel with a couple ounces of fuel cleaner, new air filter. This problem was exactly the same before and after all of these repairs. It seems to have made no difference no matter what. When it is cold it runs horrible until having warmed up at lease 5 minutes or so, as in it will die as soon as you so much as touch the throttle. One more bit of info, if you put the choke all the way up and drive it, it seems to help but the problem is still there.