Impco Lpg Ca50 Propane Carburetor Without Air Horn

If adjustment is needed, follow these steps:

* Set parking brake and block the drive wheels
* Connect a tachometer to engine.
* Accelerate engine to full governed rpm.
* Pull backward on tilt lever until pump reaches hydraulic relief bypass. The rpm should drop according to the spec for hydraulic bypass (typically a 250-500 rpm drop). If the rpm does not drop, check and adjust the hydraulic pressure before you continue.
* Turn the power mixture valve until the highest engine rpm is reached at 0.30 to 0.70 percent carbon monoxide.

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