I took the PT 24 out to a friends place to slash though some very long grass, I can't believe it, it is at least 2 feet high and as green as you would expect it to be during the Spring growth period. Anyway started tearing into it and the motor stopped when I pulled it back to idle at one stage. Immediate suspect was the float needle sticking but after checking the plug it had a bit of fuel on it so the next test is spark. No spark at the plug, screwdriver in the plug cap and shaft against the body, still no spark. Packed it up back in the trailer thinking either the module or coil had failed. Go home pulled it out of the trailer thought I would check again as removing the motor from these 24's is a bit of a pain. Then it dawned on me maybe it is the screw in the lead, sure enough, give it a bit of a turn and spark is back. Bit annoying I didn't think of it earlier but at least I didn't end up pulling the motor just to find out it was that silly little screw