I'm in search of a factory service manual for my outboard and now that I have the model number it has me curious as to what everything stands for. The model number is j225tlerk. The 225 is obviously the hp rating, but what about the letters? Anyone know a good source for a factory service manual, they seem to be difficult to come by. I have a seloc manual but think the factory manual may be more beneficial if ever in need of major work. Thanks,