Same tractor on the same dyno pull. Rated is taken at 540 pto rpm. Then lugged to max torque. Max is what the torque peaked at when the engine was lugged down. Not an actual HP number. Example. If the max reading was taken at 75% of rated speed when lugged down. Then the HP reading on the dyno dial needs to be multiplied by .75 to actually show HP. The two stroke had flat torque output. Didn't matter if it was 1200 or 2400rpm. The torque on the dyno was identical. The difference on the 830's indicated one with slow and limited governor response. Peak HP was different but once the rack finally moved to full open. The torque readings were similar.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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