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qualcast suffolk punch engine?

can anybody advise why the motor on my suffolk punch starts and runs for only a few seconds before cutting out?
yorkie, September 2008
Hi.. your problem is that the main jet needs a good claen. undo the bowl (11mm) and unscrew the jet out from the middle of the carb. clean out all the very tiny holes.

jef's lawnmowers., March 2010
What year? The Suffolk Punch has been around since the late 60s and in 40 year there have been quite a few different variants.

pleasant, September 2008
Must be fuel problem. The fact it starts shows theres spark and compression. The problem must be in the carb - its either got a blockage of some sort or its very badly set up, with the main jet screwed in too far, or the flow of fuel into the carb from the fuel tank isnt happening.

lincspoacher, September 2008
link Click here to see other fixes for Qualcast.