The 800 blow out the thread. 640 would have been better.
Nice job on the cover. Did you just bend that by hand without a break?
I did the same 11 on a mid 80's 924nnn. The tractor had pre-drilled holes for the engine but the crankend still ended up 1/4 in too long for the cover. The toss was improved 5 to 20 feet depending on conditions over the old motor. It was super compared to the old engine at EOD or wet snow and tossed it like dry snow.
Yep, lots of bodes out there cheap that are good candidates for the HF motors.
>>I figured the 11 would be just as reliable.
It should be. I also used to get the warrenties but I bought so many it was enough to pay for a motor so I bought a motor as a spare. Should anyone have an issue I'll give them a new motor.
All in all what I found was the 6.5s improved the tossing about 10 feet over the old 7hp engines. They keep right up or better 8hp ST924's from the 80s and 90s. A fresh 6.5 OHV should and does. I love planting them. They are very good in wet grey snow with lots of power.