Hi Guys...I was working on a 6 HP Tecumseh OHV engine on a Craftsman wood chipper. Original complaint
is that it would start after 5 or 6 pulls on choke, then kick the choke down to about 1/2 and let it warm up then take off choke.
It would run fine, and not leak fuel. Then when you shut it off it would start leaking fuel in about 15 to 20
seconds. The guy who brought it knew enough about the engine to put in a new needle and seat. Still leaked.
He brought it to me and I tinkered with the needle and float, removed the seat, cleaned it and put it back...
still leaked as before. So, I disassembled the carb, brushed all the aluminum oxide (similar to rust but aluminum
dust and caked on particles) off and put it in the cleaner pot overnight. Next day clean as a whistle, rinsed it off
blew it out and put it back together same seat and needle. Slightly adjusted the plastic float tab to put a little more
pressure on the needle, put on a new fuel line and it never leaked a drop. Also started MUCH easier with only 1 pull
for it to fire off on Choke and then die if I wasn't quick enough to kick the Choke down to 1/2 way position to let it
warm up, then throttle it up and chop brush. That means a lot on one of those old Craftsman wood chippers when you
pull the recoil rope and the whole blade, pulleys, belt and all rotate with it. You'd think they'd put a dis-engage on the
thing to let the engine start easier, then engage the blade! But in reference to your machine, sounds like a fuel starvation
problem. Take the carburetor off and disassemble it and boil it out, clean it off and dry it and re-assemble it like I did.
You can tinker with it till the 2nd Coming and still not get it right. Could be some partial internal blockage in the carb that
only boiling it out will fix hopefully. Good Luck! :thumbsup: