JLO Rockwell snowmobile motor, pulls over and has

Could this be the cause of the 399 JLO starting problems?

JLO Rockwell snowmobile motor, pulls over and has

The Chaparral 2J: The Can-Am series had seen nothing like it!

Will need disassembled to free up, assume it is just grease build up, Probably never used since new

RECOIL STATER PULL ROPE CUP JLO ROCKWELL LR 440 ENGINE (for Parts, Slow Retract)

ROCKWELL JLO 372 SINGLE? Ski-Doo Snowmobiles Forum

ROCKWELL JLO 372 SINGLE?, Page 4

No Reserve: 1970 Moto-Ski Capri for sale on BaT Auctions - sold for $5,000 on January 23, 2023 (Lot #96,505)

JLO Rockwell snowmobile engine 292cc

ROCKWELL JLO 372 SINGLE?, Page 2

can anyone identify this motor??

399/jlo center seal and clutch issue

ROCKWELL JLO 372 SINGLE?, Page 2

Massey Ferguson Snowmobile Fans, Second problem the engine won't start

Vintage JLO Rockwell Snowmobile Engine L292L

ROCKWELL JLO 372 SINGLE?, Page 2