I have a 2007 Suzuki RM125. I have alot of excess oil coming out of my silencer. It runs out and down my silencer to the where it ends and drips all over my swingarm, brakes, etc. I am mixing the gas to the manual specifications which is 30:1. I am a trail rider and I don't rev the bike out as much as a racer would (is this the problem?). My current jetting (stock) for a Mikuni TMX38S carb is a 370 main jet, 42.5 pilot jet, needle clip position 3, and air screw 2 turns out. I think that I might be mixing too much oil in the gas, due to the fact that I'm not revving the bike out so it doesn't really need all that oil. I was thinking about mixing it 40:1, but I am not sure if jetting would be an issue after changing the oil mixture. I am at about 500-1000 feet elevation (depending where I ride) and at 65 degrees F or about 18 degrees centigrade. Can you help me out?