Gary,
I did not polish the edges of the Lexan so you can’t see in the engine. But when the engine backfires up the carbs,the Lexan lights up like a light bulb. Scared me at first, I thought it was flame.
I changed the
oil and filter. I forgot about the sparkplugs, thank you.
Zimmy,
You're right. I tried both rpms and the lower did work better. The 2000 rpm is to be sure you are in the idle circuit for tuning that. But that didn’t work for me. The 700 rpm is the lean best tune. I was trying two different things.
I ran the LM2 and got
2000/11.7
2500/11.4
3000/11.6
3500/12.3
Looks rich to me. I did not have a smaller idle jet. So I changed the choke to a 37 from a 40. Made it richer, lots of popping cruising at 2000 rpm .
Today I’m changing the idle jet to 60 from a 65.