<VV> 140 carb jet sizes

Bryan Blackwell bryan at skiblack.com
Sat Oct 15 12:01:11 EDT 2005

I think you're lean - I run 51/53 in mine, the plugs look good and no 
bog.  We're right near sea level.  The gas nowadays usually carries an 
oxygenator that effectively leans out the mixture on a carbureted 


On Oct 15, 2005, at 10:20 AM, Jebfmc at aol.com wrote:

>   I have a 1966 140 4-speed convert , no smog heads, no A/C. My info
> suggests main jet size is 0.050 and secondary carb jet size is 0.046. 
> I am not
> completely satisfied with the performance ( not smooth at acceleration 
>  2000 RPM to
> 3000 RPM and  some hesitation/lurching as secondaries kick in.  I want 
> to
> know if anyone else is using jet sizes different from factory  
> recommended sizes
> to get smooth acceleration and secondary transition.

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