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fouled spark plugs
J Martin said 2012-01-19 10:54
My son has restored a Yamaha 200 CS-5. When he first started it he used an oil mix in the fuel. It ran ok. He drained the fuel mixture and added Yamaha all performance 2S 2 stroke oil to the oil tank and straight gasin the gas tank. Ever since then it fouls the plugs and stops running after about 5-10 seconds.