Why does my tractor backfire

The primary cause of a backfire is decelerating too quickly. The simple fix for this is just to lower the engine speed a bit more gradually. If you have a throttle that you use to reduce speed, gradually let it up instead of letting it rebound quickly. The second most likely cause is a carburetor that is not adjusted correctly.

The carburetor itself could be producing a lean mix, causing backfire during normal operation as well as during deceleration. Sometimes the gasoline itself is the problem. Mowers are engineered to handle certain blends of gasoline, using the wrong blend can unbalance the system. To fix his, simply change your blend — try to find a no-alcohol blend, or at least a lower alcohol blend if a no-alcohol blend is not available.

Content ID By Successful Farming Staff. More Living the Country Life. Removing sulfur from water. A second chance to garden. Market breathes new life into an old farm. Keep chickens from crossing the road. All Living the Country Life. Let her run for about minutes with no problem. A few days later, started it and drove it around for about 30 minutes Several more days have past and I tried to start it tonight Tried again, same thing.

Scared the heck out of me and my son. I am at a loss as to what would cause this. Please help. A neighbor asked one day if we had been shooting coyotes with a high-powered rifle near his place. I hadn't and didn't think any more about it until I got up on the hill to check my HD It was running fine and pumping water for all she was worth, but the air filter canister ducting 4 inch pipes and rubber fittings were blown off, along with half of the carburetor a twin diaghram Impco.

I don't know how it was running so well with only half a carb, but it was. Then it dawned on me - the backfiring was so intermittent that I never heard it we checked the irrigation wells twice a day , but it was so loud that the neighbor a mile away could hear it I don't know if that is your situation, but that incident sure left an impression on me!

Howard H. The basic idea is that unburned fuel and a spark are getting in the exhaust manifold at the same time. Had a once that did that and blew a hole in the exhaust manifold because one of the exhaust valve seats was missing a chunk.