Reply To: MS-39

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September 27, 2021 at 12:07 pm #247356
Mumbles
Participant

    Before installing new rings, the cylinder should be measured for taper and out of round. If it is worn oval or egg shaped, new rings will be a waste as they will never seat to the cylinder wall. One thing you can try doing is run a heavier oil mix to see if it runs any better. The oil in the fuel is what seals the motor up and it just might help.