I just bought a 1987 Suzuki RM 125 the other day. I am needing to order the water pump impellar and hardware around it. I found a place online that has schematics and when looking at them, it appears there are different series of my motor, ie..."H" or "J" or "G" how do I determine what series mine id for sure so I know which parts to order. Thanks a ton for any help. :cool: