Onan RpM setting

Bornie · Post by **Bornie** » Sun Sep 04, 2011 12:05 pm

I know, the Onan should run at about 1800 RpM.
I am measuring always more than 60 hz with the Kill-a-Watt.
In idle sometimes 68, under load mostly 63.

I tried to adjust the RPM with the spring loaded screw on top of the carburetor. The little metal thing what moves back an forth does not even touch it, but the RpM does not come down.
I need please some help in adjusting the RpM. . .

Cheers
Bornie

al1florida · Post by **al1florida** » Sun Sep 04, 2011 4:14 pm

Probably would help if you added the model # of the Gen. Are you sure Kill-a-Watt is accurate?

Steve · Post by **Steve** » Mon Sep 05, 2011 1:30 pm

I set my home diesel gen-set with a Kill-a-Watt to 60Hz and it is accurate.

oliverpsmile · Post by **oliverpsmile** » Wed Sep 07, 2011 8:52 am

Bornie

The RPM of the generator are maintained by the governor.Since you do not parallel your generator to some additional generators (like the electrical grid) you do not need to maintain strict 60 Hz.

The frequency variation of your generator has little or no effect to all loads in the RV. Besides it is normal for small engine driven generators.

At 63 Hz your A/C compressor will run 5% faster - which in Florida would be welcome.