Don,

Is this something that you do on all tractors or just on your pulling tractors?

Thanks

just engines where we advance the timing and put enough compression in to cause starting problems

I can see that. I am having more trouble starting mine now. Plan to add the switch next weekend.

Removing Choke
 

When removing the choke, what do you use to fill the holes in the carburetor? I was thinking JB Weld or silicone. Thanks

silicone works good

Added the switch and it works well. Went to the pull tonight and noticed my engine was detonating when pulling hard. I adjusted the carburetor by 1/4 turn to make it richer. It helped but didn't get rid of the pinging. Plan to back off the timing by 2 degrees and use premium gas. Am I heading in the right direction?

where are you at for timing? LP head?

I am at 20. Just got through timing at 18 and 16. 16 is definitely too low. Think I'll go back to 20 and just use better gas. At 20 it sounds like pots clanging together at the end of the pull. It wasn't as bad when I increased the fuel mixture though.

Put it back to 20. Starts easily with no hint of firing before TDC. It has to be the fuel. Been using some 87 non alcohol fuel with Seafoam added.

are you gapping the points or did you degree out the flywheel? you should be able to run around 24 degrees on midgrade gas. count how many turns out your main jet is at

Gapping the points. Get back to you on the main jet.

Main jet is out 1- 3/4 turns.