How to Eliminate Early Ignition on a Trimmer

1. First do-it-yourself chainsaw repair: dropped out retaining ring piston pin (during the repair of a Chinese chainsaw, it is necessary to disassemble the engine completely, change all gaskets, change the piston pin retaining rings, piston compression rings, eliminate scuffing on the piston and on the cylinder mirror or on the chrome or nickel-plated coating of the inner surface of […]

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