Questions & Answers for: Harley Davidson miss firing

Miss firing Bike struggles to idle then back fires There could be several casues. Vacuum leak, especially at the manifold, bad/fouled plugs or wires, water or dirt in the fuel system and even a low ...

My bike seems to be missing on one cylinder. I have installed spark plugs but no change. Have you verified spark on the missing cylinder. Harley's have what is known as a "dual fire" ignition system. ...

I have a 02 deuce that at low rpms seems to miss fire. I sounds like air being forced out the air filter. Does it more when the bike heats up. Runs good when I first start it and for the 1st 10 ...

my bike was running fine and then it started backfiring a little and missing. then got worst on the way home now it runs but back fires and misses and won't idle unless i leave the chock on. Check

...miss firing. Can anyone give me any suggestions? You need to run a compression test on the engine. The cylinder pressure should be around a hundred pounds or more. There should be no more than 10% ...

...You failed to say if the engine was equipped with a carburetor or fuel injected. Since it's missing only on one cylinder I have the tendency to think that it may be fuel injected. If so,

My bike started back firing and missing. I replaced the fuel filter and everything was fine for about the next 100 miles then it started again. Took the filter out and cleaned it with no luck. What

...2 second ignition mis fire. Excessive Engine Vibration from idle to 3500 RPM. Hesitation in miss fire every 75 miles. Hi Anonymous, and the usual suspects are: 1. Wheels and or tires ...

...firing and missing I have a 2005 softail deluxe It starts and idles good but after I ride it for 5 mins starts to back fire and miss. what could be? High Anonymous, all the Harley Gods are holding up ...

after rideing my hertiage for a while come to a stop get ready to take off miss fire from carb start off miss fire from carb Hi Anonymous, remove air cleaner backing plate. Spray some starter fluid or