I went to order the kit a few weeks ago, and thought stuff it, I can make a washer surely (don't call me shirley haha)
Unscrewed it, cleaned all surfaces, and cut a thickish old (but pliable) rubber fuel pump diaphragm from a line trimmer - no good. The choke wouldn't come off after starting, and the spring hole filled with fuel. Then I removed that and put a thinner cut piece of metering diaphragm - much better but choke wouldn't close fully or close slightly when revved up. Put it away for 6 weeks and ripped the carby off yesterday.
I thought maybe a thin piece of the line trimmer fuel pump diaphragm made of teflon (a blue coloured one). smeared a bit of grease on it to hold in position and put the carby back on.
10 pulls and only one cough. Was about to go back to the drawing board when I remembered the needle valve was shut to 1/4 turn (only way it would run before). Unscrewed to 1.5 turns and it fired up 2nd pull, ran 5 minutes then tuned and set idle. No black smoke, even when revved hard from idle straight up to 3200 rpm. Choke shuts as it should including slightly when revved. Started first go 2 hrs later
Here it is with its brother - who went 2nd pull despite sitting since march
