1981-1984 Official Honda ATC250R Shop Manual, Page 38Get this manual
FUEL SYSTEM
ATe 250R
LOCKNUT
Unscrew the lock nut and remove the starter valveCheck each part for wear or damageInspect the starter valveThe knob should be held securely when pulled out fully
STARTER VALVE SLOW JET
KNOB MAIN JET HOLDER
Remove the main jet, main jet holder, needle jet holder and needle jetRemove the slow jetRemove the stop and air screwsNOTE