On Sunday, April 26, 2020 at 3:35:50 PM UTC-4, Leon Fisk wrote:
On Sun, 26 Apr 2020 11:23:47 -0700 (PDT)
wrote:

snip
So let me ask a related question. The plugs are always
getting fouled (black fried gunk) on this tractor and
I clean 'em with kerosene. Could I maybe fix that some
with better timing?

How much oil are you burning?

Black fried gunk sounds like burning oil to me but we all have
different ways to describe things eh?

--
Leon Fisk
Grand Rapids MI

Hmm I'm not sure how much oil I'm burning. I've always
figured the gunk was because of oil leaking around the piston rings. But that could be a wrong assumption.
(One of the pistons was 'rebuilt' several years.. new rings
and I had the piston sleeve 'redone'(not sure the right term.)

Anyway the black gunk seems the same on each spark plug...
So I thought maybe it's something else.

George H.