Motorcycle Repair: 2 stroke oil mixture, suzuki rm125, stroke oil

Question
Hi i know this is not your area of expertize but can you tell me how much 2 stroke oil i need to add 2 fuel for a 1989 suzuki rm125 1989 K  

Answer
Hi My son has a 1991 RM125 and we run that at 40:1.  Seems to run OK at that.  Check the plug when you have been riding for correct mixture.  Basically you should JUST detect a little smoke if it is running right.  If it's smoking heavy blue smoke when it's hot it's likely too heavy on oil.

Good luck,  Jan