: Remove the seat, fuel tank, and cylinder head cover (rocker cover).

The steps were absurd. Drain the oil at moonrise. Burn a sprig of sage in the intake. Rotate the flywheel exactly thirteen times counterclockwise while humming the low note of a piston’s compression stroke. Then—and this was the strangest part—remove the cylinder head and clean the carbon deposits with a soft cloth and your own breath . 162fmj Engine Service Manual

Run a compression test. If below 100 PSI (7 Bar), perform a top-end overhaul. Replace compression rings, scraper rings, and Viton valve stem seals. Issue 3: Hard Starting or Popping through Carburetor : Remove the seat, fuel tank, and cylinder

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