1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 212Get this manual
16TROUBLESHOOTING ENGINE DOES NOT START OR IS HARD TO START ENGINE LACKS POWER POOR PERFORMANCEA LOWAND IDLE SPEEDS 16-1 16-2
POOR PERFORMANCE AT HIGH SPEEDS
ENGINE DOES NOT START OR IS HARD TO START
CHECK 1Check if fuel is reaching carburetor CONDITION PROBABLE CAUSE
FUr TO CARBURETOR
2Remove spark plug
NO FUEL TO- No fuel in fuel tank CARBURETOR Clogged fuel line or fuel filter Clogged carburetor float valve Blb'gged fuel tank cap breather tube
W Carburetor flooded Carburetor starter valve stuck open Damaged starter valve seat Th rottl valve adjusted to low
3Test spark SPARK 4Test cy rInder compression by operating kick starter