my friends lt 80 is bogging down the guy says its always done that and it only gets better after about 2 hours of hard riding. it sounds to me like it is running rich on the oil. is there any way to adjust the oil injector on this thing.

 

First check his reeds and make sure they are hard

 

uuh yeah there is no adjustment, I found out and you definately need to pull off the carb take of the bowl and clean the whole thing, but still check the reeds