I've had a lovely '91 Suffolk Punch 35S that I've been playing with for a couple of years and finally got the carb tuned in nicely and the blades backlapped (I'm learning along the way).
However a few weeks ago I started it up with no problem but a few seconds later there was a pop/bang/misfire and it stopped. Alas it wouldn't start again.
Here is how far I've got...
1. It has spark, looks ok to me. Plug is a bit dirty but I think I was running it quite rich before I honed in the mixture over summer.
2. Replaced the carb with an eBay replacement, mainly because I've had the other off so many time to clean I thought I might as well treat it to a new one.
3. Added a thimble of fuel, have also tried carb cleaner, directly in to the cylinder to see if I can get it to turn over. No luck. The best I got out of it was some smoke from the muffler.
I'm out of ideas now. Here is a picture of inside the cylinder if it helps, but there doesn't seem to be a fundamental flaw?
Appreciate the help as always,