I ran into this this weekend, when talking to another rider about fuel, oil/gas ratio's, etc. He said he puts 15W40 in his cases (RMX250). I am a bit unsure on proper oil. I looked up my manual and it calls for SAE 30 oil.
I put in 80w Belray Gearsaver 2-stroke gearbox oil when i re-assembled the motor. I always used this in my tranny for my 125 GP roadrace bikes with much success. I was advised this when i first got started, and followed suit since.
I did not notice my clutch slipping this past weekend, so i am furthur confused.
Please help this dirt-novice.
thanks,