1987 Honda Fourtrax TRX 250X Service Manual, Page 45Get this manual

FUEL SYSTEM Remove the three screws and diaphragm cover
111 DIAPHRAGM

Check the diaphragm and shaft for pinholes, straightness or other damage

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