just bought bike off ****, no repair manual yet. from what i found on internet it is 80w bottom end, friend has 99 cr 125 says his is 10/40, what do i use ,is he wrong? dont want to even talk to local dealer they suck so bad. how do i confirm oil level, no sight window, he has bolt to pull out and i dont have manual yet(its on its way soon). any info would be helpfull !!! THANKS IF YOU CAN HELP