Blaster Help route water cooling hoses yamaha 1100 non-pv

[yama-doo]

This is on my sons project B1 blaster ski we put (are slowly putting) in a 96/97 waveradier 1100cc engine in the B1. I'm a little confused with the water cooling hose routing on the engine. I am used to the top of the head taking the main water line form the jetpump but looking at the exhaust diagram where it says "see fig 21" it feeds into the exhaust box and also shows on the top of the exhaust pipe a vent tube to thru hull???? also #53 or #64 could be what connects to the main water feed hose form the jet pump which is it?

Does anyone have a idiots guide to routingteh water hoses on a old Yamaha 1100 non-pv motor?

 

[Nate_D]

Find a microfiche online somewhere. It's difficult to explain without a picture, but in stock form the two coming off the head are going into the exhaust. There's another coming from the pump into the exhaust mani, and then there's another from the pipe to the stinger, and then one that dumps overboard and one that went to the waterbox, but you will dump overboard. Let me see if I can dig up some pictures of my routing.


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[Nate_D]

Here's the fiche


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[Nate_D]

Let me try to explain better. There's more than one way to route it, but this is how I routed my 1100.

Hose 53: from pump
Off head both: to beginning of pipe, near mani.
Hose 26: to pisser
Hose 63: to pisser
Hose 44: to stinger (makes a little loop)


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[yama-doo]

yes that's the diagrams I am looking at I guess it just seems weird to me that the main water line hooks up to the exhaust box instead of the nipple on the back of the head. Does the trough hull hose matter if its out the back or the side?

 

[yama-doo]

oh we must have been typing at the same time..lol

ok thanks for the help

 

[yama-doo]

Hey the #26 pisser that comes through the exhaust boot , can I block that off or does it have to have that one?????

 

[Nate_D]

I would dump it overboard. I don't know if you could get away with it being blocked off. Why wouldn't you dump it over board?


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[yama-doo]

I don't have any through hulls and I'm not real thrilled about drilling holes in the hull , guess I have to do one for the number 63 pisser unless I route it into the custom pipe with a nipple

 

[Nate_D]

Yeah you will need a pisser on 63 anyway, just get two. It's not a big deal drilling the hull. Measure 5 times, drill once...


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[yama-doo]

those two hose and making a elbow form the stinger to the exhaust hose is all we have left I think.

that #63 is a big hose I need to use a reg boat size through hull fitting right?

 

[Nate_D]

Just size it down and use two regular ski pissers.


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[Jarrett1999]

The number 40 fitting seems to clogged on mine any tips? Had chem dip soak in it all night and got no where. 90psi compressor won't blow it out.

 

[Big Kahuna]

can you see the obstruction? if so take a drill to it and then stiff wire and snake it.