TROUBLESHOOTING INFORMATION
RS 125
Oil pump out of adjustment. Adjust.
Engine is burning oil
Crankshaft seal damaged or worn. Replace.
Piston rings or cylinder worn. Replace.
Incorrect air gap between spark plug electrodes or ignition
system faulty.
Adjust or replace.
Carburetor jets obstructed. Clean.
Incorrect fuel level in carburetor float chamber. Adjust.
Air cleaner clogged. Clean.
Air leaking past the intake duct. Tighten or replace.
Loss of engine power
Engine is receiving too much oil. Adjust the oil pump.
Too much carbon build-up on piston crown. Clean.
Engine is receiving insufficient oil. Adjust the oil pump..
Oil pump faulty or oilways obstructed. Replace or clean.
Fuel level in carburetor float chamber too low. Adjust.
Air leaking into intake duct. Tighten or replace.
Engine oil used does not meet specification. Use specified oil..
Engine overheats
Cooling system faulty. Read radiator section.
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