1951 Voyager (Champion) 2VA wont rev up

This topic has 2 replies, 2 voices, and was last updated 4 years, 4 months ago by Kevin Albers.

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August 23, 2021 at 2:14 pm #245347
Kevin Albers
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I have a 1951 Voyager model 2VA 4 hp that starts easily and runs good up to about half throttle. After that it seems like it loads up and runs very rich. Adjusting the high speed jet has no affect on it. Ive not tried adjusting the low speed while its doing this. I have cleaned the carburetor and all seems to be in order in there. Any suggestions? Thanks everyone.
August 23, 2021 at 8:34 pm #245363
jcrigan
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What is the mixture ratio on your motor? It should be 3/4 pint oil to the gallon. These are rotary valve motors with bronze crankshaft bushings. They rely on a heavier mixture to help seal the crankcase. If those bushings are worn, the engine will run lean. Recommended oil is 30 weight.
August 24, 2021 at 12:24 pm #245410
Kevin Albers
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I did mix it as suggested. I think it was 12:1 but I used 40w non detergent just because I had it on hand.
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