Thread: Discussion 160 4-stroke twin question
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Old Apr 27, 2012, 09:44 AM
corsair167 is offline
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USA, IN, Seymour
Joined Oct 2009
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Valve Problem

I have and you may find as OS book on 4 stroke engines. In it you will find part numbers and all kinds of information. Disassembly and reassembly.......
Your engine need be disassembled to repair. First pull off the rocker covers. Turn the engine over to see if all the valves are working or stuck.
If stuck open further dissassemble to repair. If stuck closed, tap it until it unseats.

You may need to send the engine for repair. My OS ran like a champion with an 18X6 Zinger wood prop. I ran 10% Wildcat......also use OS ""F" plugs.
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