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joel_bc

Two-cycle engine questions

joel_bc
19 years ago

These questions pertain to the kind of one-cylinder, two-cycle engines that typically run chainsaws, brush cutters, etc.

1. What carburetor-setting refinement overcomes a *hesitation* to immediately accelerate when the throttle is opened (trigger pulled)? (Please assume the carburetor and air filter are clean, the fuel is mixed properly, the fuel line and its filter are in good condition, etc.)

2. What causes "dieseling" (the tendency for the engine to continue to run after the ground or "off" switch is closed to ground out the magneto)?

3. Why do small-engine mechanics typically replace the spark plug when a machine goes into the shop - rather than just gap it and clean any undue carbon or oil off of it? (What can normally go wrong with something as simple as a spark plug?)

I'm sure these questions are basic, but bear with me. I'd like to get a solid grasp on these things. Thanks.

Joel

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