Motorcycle Repair: 2000yamaha wr250r carb, air fuel mixture, correct heat

Question
my bike fouls plugs very often. it starts hard and floods easy. if i put a new plug in it runs fine for weeks then bang no start, fouled plug. please advise if  poss  thanks kevin

Answer
Hi Kevin,

By the description given, some carburetor tuning and/or a thorough carb cleaning may be necessary.

Depending on the rider's riding habits, lugging the engine may be preventing the spark plug from self-cleaning and causing plug to load up. Correct (heat range) spark plug?

Clean or replace air filter. It may be too restrictive causing a overly rich air-fuel mixture and fouling the plug.

Ignition system component may be defective.

Respectfully,
Mark Shively