Measure between the Black/Red wire and ground. Standard reading: 300Ω – 500Ω.
7.5kΩ to 9.5kΩ 7. Torque Specifications Matrix 253fmm service manual
A: Use a high-temperature 20W/50 oil designed for air-cooled engines. Using lighter oil (e.g., 10W/30) can lead to engine overheating and wear. Measure between the Black/Red wire and ground
Check your valve clearances. If clearances are zero, the valves expand when hot, fail to seal completely, and cause immediate compression loss. the valves expand when hot