Question about Kohler 17 kW Emergency Power System - 17RES-L

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17 KW Kohler will start and idle but will not step up to proper RPM to run the generator. Is it common for NO gas (Propane) pressure to pass through the regulator when the engine is trying to start. Or does the engine draw the propane that is needed. (There is no-flow through the regulator) Serviceman changed the main circuit board in the unit, and it still would not start and run. Speed sensor checks ok, Throttle Step checks ok.

Posted by Anonymous on

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  • Kohler Master
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I think the propane regulator is controlled by engine vacuum pressure in a lot of gensets. when was the last time your valve clearances were checked? this is just a thought because if the valves are too tight it may not make the vacuum needed to open the regulator. not sure but its easy to check.

Posted on Jul 08, 2017

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Posted on Jan 02, 2017

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SOURCE: I have a new Kohler 12kw res generator on propane - backfiring

Is the outside air temp cold. These generators will backfire if it is real cold and if the propane pressure is low. It is suppose to be 11 to 12 inches of water colume at the generator fuel input. drygwals

Posted on Feb 20, 2010

  • 2 Answers

SOURCE: I have a new Kohler 12kw res generator on propane - backfiring

did you put the propane orifis in and unplug the spark wire

Posted on Sep 20, 2010

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Is the outside air temp cold. These generators will backfire if it is real cold and if the propane pressure is low. It is suppose to be 11 to 12 inches of water colume at the generator fuel input. drygwals

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