1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 46Get this manual

FUEL SYSTEM Inspect the pilot screw and each jet and replace them if they are worn or damagedBlow open all jet with compressed air
PRIMARY

(6) NEEDLE JET

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives