I totally understand that wrench...there where Yamaha and Suzuki dealers and shops that worked on them all over the place in Florida back then..1986 was the year i owned and all i ever did was water pump every year and 1 fuel pump in the 10 years owned it. On this 1995 135 merc i have now, seems im always working on it...now im putting all new coils on it and all new line bleeders, it is a carbed motor, im just glad it's not computerized...lol