First snowmobile crankshaft of the 24-25 season. It's a Yamaha, and as such needed very little. Yamaha definitely built the best two-stroke snowmobile crankshafts.
I would machine the accelerator pump well in the Quadrajet carb body and then use the larger diameter pump cup from a big Rochester 2GC two-barrel , gave much more pump volume, really helped to eliminate the stumble when linking all 4 barrels.
Just finished up a crankshaft rebuild on a John Deere / CCW / Kioritz 340 fanner. The guy might get one vintage ride in this year if we get some snow. Worst year ever for rideable snow in Michigan.