Evans waterless coolant

rich006 said
Gack. I assumed the carburetor would come from the factory with a reasonable float level preset. How wrong I was. It was about as low as it could be, about 3/4" below the bowl top. I have now raised it to about 1/4" below. That was as high as I could get it without removing the needle valve. I can fine tune it after I establish that this makes a difference.

Here are some pics of the carburetor and the removed step-up piston with the metering rods. This piston is designed a bit different from the Carter version.View attachment 1715758035 View attachment 1715758036
Float level before (to be fair, a bit of fuel has evaporated, it would be a *little* higher with fuel pressure):
View attachment 1715758037
And after adjusting:
View attachment 1715758038 View attachment 1715758039 View attachment 1715758040

So, with that low of a fuel level initially - now raised nicely you should hopefully see a difference. Always check the basics. Float levels of various specifications by just fractions of an inch difference was what the factory wanted with different engine combos and emissions. All you need is a ballpark, 1/4" is fine..
Good luck finding a pair of jets incrementally larger than what you have, hopefully you do not need them now..