Seller notes

NEW RGM 06-4862 PCV BREATHER CRANKCASE VACUUM NON-RETURN VALVE FITS NORTON COMMANDO 850 1973 - 1975CRANKCASE HOSE 1/2" - OIL TANK HOSE 3/8" FITTING BREATHER VALVES HAS BECOME POPULAR AS THEY ARE QUITE GOOD AT PREVENTING OIL LEAKS AND CAN HELP WITH THE 850 COMMANDO POROUS HEAD PROBLEM, (LEAKING FROM THE FRONT OF THE CYLINDER HEAD AROUND 3 FINS UP). ANOTHER REASON FOR FITTING THEM IS A SMALL INCREASE IN PERFORMANCE IS OBTAINED (SUPPOSEDLY). ANOTHER SCHOOL OF THOUGHT CONSIDERS THEM TO INTERFERE WIT...

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