[Jhar06]

I bought a go kart with a yamaha exciter 440 engine on it. I need to order parts but am unsure of the year. The serial number on the engine block reads "437CM38L800". I also attached a pic of the serial number. I have no vin because the engine was pulled out of the snowmobile long ago and I was unable to find a lookup just for engine serial numbers. Any help on what year this engine is would be

greatly appreciated. Thanks!