On Mar 20, 2012, at 10:15 PM, triumphs-request at autox.team.net wrote:
> oil weight is quite literally the acceleration enrichment control.
> A thick oil will make it run richer by slowing the response of the
> piston, increasing air velocity over the bridge drawing more fuel
> a thinner oil will let the piston rise more rapidly, shortening the
> enrichment time.
I've no argument with the above but it always makes me ponder the
following. Since a rising piston/needle also allows more fuel to flow
due to a smaller needle diameter, I've always wondered about the
seeming contradiction in above. Can someone elaborate a little more?
Allen
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