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Plugs do eventually foul on dirt bikes just because they get old (4-12 months for a 2 stroke, 6-18 months for a 4 stroke depending on how long you let it warm up for before riding hard). If this is not the case, it is because your mixing too rich of a oil/gas mixture for 2 strokes, or your carburetor is not jetted properly for your area (elevation).
It is also uncommon, but it may be due to your ignition timing; that would also make your bike very hard if not impossible to start or ride (low power). One other uncommon case would be if a gasket is ripped/missing and oil from the transmission or cam is leaking into the cylinder.
Also, when coasting down long hills, give it a little gas every once in a while, they sometimes foul then too unless you keep up the RPM's to keep the plug warm.
What else can I help you with?
Why do spark plugs foul on dirt bikes?
spark plugs tend to foul because too much oil builds up around the plug and it cannot work correctly. *sometimes* you can actually remove the plug, clean it, re-gap it, and replace it in the bike.
Why is your dirt bike fouling plugs?
I have a kx 250 dirt bike that keeps fouling plugs on start up. I rejetted it but that still didn't solve the problem. What could be the Problem?
What is a dirt bike coil?
Part of ignition system. Stores energy to fire plugs.
How many spark plugs does a 03 suzuki gsxr 750 have?
An 03 Suzuki gsxr 750 is a dirt bike. This type of dirt bike has only one spark plug in the motor.
What is the spark plug gap for a 1991 suzuki dr 250 dirt bike?
The 1991 Suzuki 250 dirt bike spark plug gap is .019. Most spark plugs will come pre-gapped from the spark plug manufacturer.
Where do you get a Dirt bike license?
you do not have to have a dirt bike liscense dumbazz
Who invented the tricks for dirt bikes?
There is not a single dirt bike sportsman who is credited for inventing dirt bike tricks. A lot of dirt bike riding is freestyle.
Can you ride a 70cc dirt bike on the street?
No, it is illegal to ride a dirt bike on the street but you can ride it on a trail or dirt bike track.
What is a dirt bike mlade of?
It's made out of dirt obviously hence the name dirt bike.
What hurts more bike or dirt bike?
depends if you are wearing the protection for a dirt bike that is needed
What is bigger a 110 dirt bike or a 85 dirt bike?
The 110.
Is a dirt bike considered a vehicle?
A Dirt Bike is considered a vehicle.
