I have a Yamaha 150TXRA and purchased a Yamaha service guide on line. Based on the list of motors they provided they state that LIT 18616-02-01 is the correct guide for my motor. When I attempt to use the guide it lists the following motors C150X, 150X, L150X, S150X, P150X, D150X. How do I know which of these designations refers to my motor? I am trying to check the timing, idle adjustment and carburetor adjustments as the motor seems to be running a bit rich and smoking more than usual and burning more fuel than previously.
