Today we took the carb off again and opened it up. The float was right at 2" per the reference points we've talked about before. I adjusted it to 2 and 1/8" and reassembled everything. We fired her up...no ether required, and let her idle a few minutes. Carb exterior remained dry as she idled and all looked pretty good. i adjusted the idle screw OUT to lean out the mixture and listened for smoothest operation.
My friend opened the throttle fully and we make an adjustment on the POWER needle valve, again listening for smoothest operation. It was more evident that this adjustment was doing something and a 'sweet spot' was located.
Back to idle speed and adjusted the idle screw OUT to its limit with little impact noticed on the sound of operation. It can't be adjusted any more or there will be no tension on the spring around the idle screw. So, we turned it in just enough to put a little tension on the spring, so the screw doesn't vibrate out.
Time for a test run. My friend throttles up a bit and takes the tractor out on the street..off he goes, out of sight, out of hearing distance.
I'm waiting, waiting, but he doesn't come back. Turns out, he got half way around the block and ran out of gas! Put more gas in the tank and head up a pretty good incline, and the engine loads up a bit and some smoke comes out the exhaust, but she makes it to the top and smooths out a bit. So, under load shes not really struggling for power, but she doesn't run quite as smooth as when at idle, or on level ground. But, shes ALIVE again, and my friend is as proud as can be!
Got her back to the house, let it idle a bit and then shut her down. Waited a few minutes to see if the carb would stay dry on the exterior, and she did. Looks like we got that float set about right....finally.
Now we have a few loose ends to tie up and fix and we'll leave it at that for a while.
Thanks to all for your input and suggestions on what to look for and what might help! Greatly appreciate your input!! THANKS !
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