Raise the carburetor needle clip or install a larger main jet. Clogged air intake Clean or replace the foam air filter element. Worn piston rings Replace piston rings and hone the cylinder bore. Failed valve seals
The manual details how to disconnect the 4-wire CDI harness, the fuel line, and the two engine mounting bolts. It warns that the swingarm pivot bolt often seizes in the engine case, requiring a penetrating lubricant.
Indicates an overly rich fuel-to-air mixture. Clean the air filter, adjust the carburetor float height, or drop the carburetor needle clip position. Clutch Slipping (Semi-Automatic or Manual) 152fmh engine service manual
If the engine stumbles, bogs, or only runs with the choke on, the pilot jet is clogged. Turn off the fuel petcock and disconnect the fuel line.
Readjust the main idle speed screw back down to a stable 1500 RPM. 5. Electrical System, Ignition, and Wiring Diagrams Raise the carburetor needle clip or install a
0.8 Liters (0.84 US Quarts) at oil change; 0.9 Liters after a dry rebuild.
Use a new base gasket. Do not apply liquid sealant to the cylinder head or base gaskets; install them completely dry to prevent oil passage blockages. Failed valve seals The manual details how to
Set the bike on a level stand and adjust the idle speed screw until the engine idles slightly high.
Remove the cylinder head and replace the rubber valve stem seals. Incorrect oil type
Kick start and/or electric starter (top or bottom-mounted) Ignition Type: CDI (Capacitor Discharge Ignition) 2. Fluid Capacities and Routine Maintenance Schedule