Author Topic: Power Valve Operation???  (Read 50 times)

Offline Rainman56

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Power Valve Operation???
« on: July 24, 2020, 07:16:19 pm »
Been searching and can't seem to find any info on how the power valve works on these engines...specifically how the gear driven governor makes the valve close at upper RPMs.....I've heard different oil viscosities and temperatures can change the RPM the valve closes as well?

Also is there a general RPM setting the PV should close at??? I've heard 5800RPM on the 500's but nothing on the 250's.Obviously the pipe/engine combination will have some affect but just looking for a general starting point......Just trying to educate myself on the operating theory and gain some info.Thanks
Can,t fix stupid.:)

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