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Your timing is off in most cases, or your carburetor needs adjusting.

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13y ago
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Q: How do i fix 4 stroke motorcycle backfiring?
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Related questions

Is pollution certificate required in 4 stroke motorcycle?

Yes


Can you put castrol grand prix 4-stroke motorcycle oil in a 2 stroke dirt bike?

No if it says 4 stroke or 4 cycle you can not put it in a 2 stroke or 2cycle engine.


My motorcycle backfires and my sparkplugs have oil on them. How do I fix this problem without having to repeat constant repair?

Engine rebuild is the answer. Oil is on the plugs because either the valve seals are worn, or the piston rings are, and if you are going to do one you should probably do both. Backfiring could be ignition of the fuel in the exhaust due to the fouled plugs but is usually a timing issue. This is true if the engine is a 4 stroke, if it is a 2 stroke the oil induction may be malfunctioning or your mix ratio is wrong.


Can you turn a 2 stroke motorcycle into a 4 stroke?

swap engines. they work completely differently and cannot be changed.


How can you tell the difference between a 2 stroke and a 4 stroke motorcycle engine by looking at it?

a four stroke has a timing chain and a cam and a two stroke doesnt a two stroke has reed valves


What are the three types of motorcycle engines?

2 stroke, 4 stroke, and rotary (although this one hasn't been made for a while).


How does a 4 stroke Honda motorcycle works?

i don't think it has 4 gears it has five according to mine You put fuel in the tank and put oil in the crank case on a 4 stroke motor cycle.


How fast does a 89cc 4-stroke motorcycle?

I think 60mph to 65mph approx. is the top speed for this bike.motorcyclesdir.com/


What type of motor oil for Buell blast?

Any motorcycle oil with the weight 20W50. I use Valvoline 4 stroke motorcycle oil 20W50 and it works fine!


Increase motorcycle 4 stroke engine?

not completely sure what the question is asking butr i believe it is asking why is the 4-stroke engine taking over the makrket.I believe it is because of the even power they make as trhe 2-stroke has a strong powerband which can make the bike more difficult to ride/race.the 4-stroke is unfair in its way b/c the 250cc 4-stroke races with the 125cc 2 stroke.


How much oil does a 2 stroke motorcycle need?

Usually the average is about 4 ounces of oil per gallon of gas


What type of clutch oil pw80?

Any 4-stroke 10W-30 motorcycle oil can be used in clutch case.