Product Troubleshooting for 2000 Alfer VR 2000 Supermoto
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Check the valve clearance to see if one of the valves is tight To figure out whether it's the rings or the valves try this. Lock the crank with a wrench with the piston at TDC (Top-Dead-Center) and run some compressed air in through the spark plug hole. Make sure you have a good hold on the crankshaft wrench or the engine will spin throwing the wrench off ! Now listen. If you hear air coming out at the carb or air cleaner the intake valve is leaking. If at the exhaust pipe, it's the exhaust valve. If at the engine breather, it's the rings.
Having problems with your 2000 Alfer VR 2000 Supermoto ?