Head with 4 water inlet/outlet wtd

[BBYamaha]

I picked up a protec girlded head the other day that has 4 inlet/outlets. Most I have seen have 2, what should I do with the other 2? I am runnning this on a 84.5 sleeved bb on a 760 case with a b pipe. Compression is going to be about 190~. I am planning on tapping the exhaust manifold for dual cooling when I pull my old motor to put this one in. Any thoughts? I did a search under the general didnt see much that stuck out. Seems like the consensus with the stock 701 that had the head tapped was to put a restrictor in line and not worry about it which worked for the 701

 

[chrisdoc0608]

picture would help

 

[BBYamaha]

http://www.pro-tecperformance.com/c2andc3heads.htm

This head with 3 barbs on the left on one on the right, left the head at work will snap pics tomorrow.

Mine has been modified with extras, no it does not come like this from pro tec (at least i dont think so)

 

[chrisdoc0608]

if the cooling passages are all open like in an ada then you can run an "in" line, an "out" line to the pipe, and an overboard line "pisser" then plug the fourth

 

[BBYamaha]

Here is a pic of the head.

 

[750SX]

you can just plug two of the holes on the right side.

 

[scottie mac]

Those three holes are for the pro tec pipe bracket. (looking at the pic, the three around the top of the right hand plug.

Scottie

 

[chrisdoc0608]

run one line in at the back, one pisser, one to the pipe and plug the fourth.

 

[#ZERO]

All the fittings on the head should be cooling outlets and you just need one at the front and one at the rear.

Plug the other two with holes with 1/8" NPT aluminum or brass pipe plugs.

Your local Ace Hardware store should have them in stock for a $1.29 each.

How many bypass fittings are you running on your ski?