I have bought a 1934 1.5 hp Petter M (you remember, the one on Ebay with the serial no plate held on with cross head screws yuk!).
Anyway, more out of interest, I mailed him to find out what he really wanted for it and it transpired that the guy put a reserve of £350 on it, and it only reached £226. He was going to offer it to the highest bidder but....it would not start anymore. Seems it runs for a couple of minutes, and then stops. He messed around, could not fix it and gave up.
Anyway, to cut a long story short, I made him an offer, as it stood, and he accepted. So, I get it home, and it starts, and runs for a couple of minutes, perfectly (weakening it off gives the usual pops and bangs that the public likes) and then just stops.... just like turning the mixture screw shut or shorting the plug lead. It has a spark, timing OK. and I have stripped the carb, cleaned everything I can find and it starts and runs again....and then stops. I have gad the air plate off the crankcase and it looks OK, I have had the "fuel pump" plate off, checked it and it seems OK.
I have run out of ideas guys so, anyone got any suggestions?
Thanks.