HONDA PRESSURE WASHER GC160 ENGINE SURGING IDLE General Troubleshooting
System Nominal
On many GC160-powered pressure washers, a mild surge or 'hunt' while the pump is in bypass mode (trigger released) is a known characteristic due to the low rotational inertia of the engine's lightweight flywheel. If the surging disappears immediately when the wand trigger is squeezed and the engine is under load, the unit is operating within factory parameters.
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