What to do if your Evo backfiring is missing?
Checked the compression, checked the pushrods and the valves to see if they were opening. Put in new exhaust seals. Checked the timing, checked the coil. The VOES is working correctly. I’ve got good fuel flow. I even put another CV from my buddy’s bike on and no difference. Anyway, I am stumped and don’t know what to try next.
Why is my Evo missing at high revs?
When you go to give it some throttle though, it starts spitting back through the carb and missing. Especially under a heavy load, like riding up a hill. If you power through this missing, it starts going well at higher revs, but still misses a bit.
Why does my Harley Davidson Evo keep missing?
It starts fine (kick only) and idles well, usually it even runs fine if you are using very little throttle, although I seem to feel a little surging even then. When you go to give it some throttle though, it starts spitting back through the carb and missing.
Why does my Evo sound like a machine gun?
It ran rough at low RPM, started fine, idled fine. After about 5 minutes at 3000+ it sounded like a machine gun until I would back down. Also may not hurt to ohms check or even swap out the plug wires. I had a weak foward cylinder one that drove me crazy for a while.
Checked the compression, checked the pushrods and the valves to see if they were opening. Put in new exhaust seals. Checked the timing, checked the coil. The VOES is working correctly. I’ve got good fuel flow. I even put another CV from my buddy’s bike on and no difference. Anyway, I am stumped and don’t know what to try next.
It starts fine (kick only) and idles well, usually it even runs fine if you are using very little throttle, although I seem to feel a little surging even then. When you go to give it some throttle though, it starts spitting back through the carb and missing.
When you go to give it some throttle though, it starts spitting back through the carb and missing. Especially under a heavy load, like riding up a hill. If you power through this missing, it starts going well at higher revs, but still misses a bit.
It ran rough at low RPM, started fine, idled fine. After about 5 minutes at 3000+ it sounded like a machine gun until I would back down. Also may not hurt to ohms check or even swap out the plug wires. I had a weak foward cylinder one that drove me crazy for a while.
What does backfiring mean on a Harley Davidson?
Real backfiring means the engine is not properly timed and the fuel/air mix is getting a spark and ignition at the wrong time (when the intake valve is open). Real backfiring is actually the bike “spitting up” in a sense, backwards through the carburetor or intake. So, the popping you are hearing is not back-firing.
What should I do if my Keihin bike keeps backfiring?
On the stock Keihin, you have to remove the float bowl. If its a carb. bike check the vacuum line that runs from the fuel petcock to the carb. Make sure it has a good connection on both ends . So, after cleaning the spark plugs and dumping in a can of HEET, the bike is running great. I really appreciate all your advice, everyone.
Real backfiring means the engine is not properly timed and the fuel/air mix is getting a spark and ignition at the wrong time (when the intake valve is open). Real backfiring is actually the bike “spitting up” in a sense, backwards through the carburetor or intake. So, the popping you are hearing is not back-firing.
Can a Haynes aftermarket manual prevent a backfire?
Yes, many backfires can be prevented with a little maintenance as suggested in your car owner’s manual or the vehicle repair manual. If you don’t have your repair manual yet, you should get one. Get an inexpensive Haynes aftermarket manual at Amazon for your particular vehicle make and model.
On the stock Keihin, you have to remove the float bowl. If its a carb. bike check the vacuum line that runs from the fuel petcock to the carb. Make sure it has a good connection on both ends . So, after cleaning the spark plugs and dumping in a can of HEET, the bike is running great. I really appreciate all your advice, everyone.