On May 2, 5:14*pm, Jim Wilkins wrote:
...
...That bolt with 166 stamped on it is the main jet. I was hoping
there might be an ethanol replacement with a larger fixed orifice. No
luck so far searching on the net.
jsw-

The small engine shop gave me a used, larger 163 jet to try. (should
prefix it "Me-") It passes an 0.036" drill bit which the 166 doesn't.
So far the engine runs smoother but the plug still reads lean.

Wouldn't you expect a universal problem like this to have a simple,
well-publicized solution? I've had to retune all my small engines for
gas with ethanol.

jsw