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255 fsh E cooling system clamping

skyhighdiver

Well-Known Member
Messages
1
Reaction score
1
Points
45
Boat Make
Yamaha
Year
2022
Boat Model
FSH Sport
Boat Length
24
OK somebody that’s mechanically smarter than me. This is been asked over and over and nobody has yet to post a photo or a correct answer . I’m going to make it easy. Here is the 255 fsh E cooling system from the service manual. Let’s not get into the reasons ,why but if you’re going to tow the boat or go faster than wake speed with one engine off, are you going to need to crimp off water intake line to the engine that is off to prevent filling cylinders and Hydro lock. So the question I have is do you have to pinch off just the green location or do I have to pinch off both lines as in the red location. Or the obvious answer would be to pitch it off at the yellow location if that’s accessible, knowing this could help save somebody’s engine.IMG_0551.jpeg
 

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