Heinz brings up some interesting points. Among two stroke bike tuners there has been debate on the value of synthetic oil becasue the synthetic can be mixed at 100-1 where as traditional pre-mix is around 24-1. The syntehtic stalwarts say less oil in the mix means more burnable fuel hence ,more power. The traditionalists say the 24-1 has more oil on the cylinder bore therefore offers a better ring seal I.E. hgiher compression hence more power.
So... if your motor is run farely loose I would think you'd steer away from synthetic. I have run motul in the 1200 and due to leaky umbrella seals it puffed a little smoke. Now since I'm racing the car it is no biggie but for street use at $7 a quart Motul could get exspensive. I would use good Ol Castrol 20W-50. Remember I'm in the desert.

Tom Grossmann, Las Vegas