I've still yet to solve why my bike overheats, i've flushed the system with vinegar multiple times, check thermostat, put on new radiator cap, bled the lines, water pump fins looks good and water moves through radiator when bike is moving. still have a code 34(exhaust servo, which is taken off now). Servo buddy is on the way. i see this beneath my bike now, looks like oil coming from a wire hole above the waterpump, and on the oil pan you can see lots of buildup, and there was a fresh drop of oil on the bolt. I am too broke for a mechanic, and this is my only transportation. Bike has 30k miles. Why would it be leaking oil? running lean/rich? that attribute the code 34 and overheating too?