I recently pulled the 700cc engine from my 1995 Wave Venture 700 (WVT700) and put it into a 1996 Waverunner III (WRA650). I did this because even tho the Wave Venture was fun it was a bit to slow and bulky. The jet pump was not in the best shape (No Fast Acceleration) and neither is the body. I am a big guy and I loved the buoyancy and stability of the Wave Venture but don't want to sacrifice fun/performance. The Waverunner III has not seen water in 10+ years and I had no idea of the condition of the jet pump. Took a few hours and some beers but I got the engine in and took it out. Luck my, the jet pump works great and tons of acceleration! It a little tipsy and the weight seems to be way to far to the rear but its much much more fun the drive! It did take on a good amount of water. I am not sure if its a leak in the water lines, the hull, or an area where components enter (drive line bearing/seal, steering rod) but I have some tests to figure that out.
My post today is reguarding cooling. I can not find the information I am after in my repair manual, google, or this site. I am wondering how exactly the cooling path flows. I think there is some difference between the VRA650 engine and the WVT700 engine as the nipple coming from the upper portion of the exhaust is large and goes directly into the head on the 700 and its tiny and would not supply the head enough water on the 650. So does the water actually flow out the exhaust system on either or both original setups? Right now I have the water feed going to a T-fitting then one going to the cooling water intake nipple on the lower portion of the exhaust (this is the same on both engines) then the other one going to the head. Nothing is hooked to the small nipple on the upper part of the exhaust (exhaust gas comes out not water) .. So what is the correct cooling path I should set up? thanks
My post today is reguarding cooling. I can not find the information I am after in my repair manual, google, or this site. I am wondering how exactly the cooling path flows. I think there is some difference between the VRA650 engine and the WVT700 engine as the nipple coming from the upper portion of the exhaust is large and goes directly into the head on the 700 and its tiny and would not supply the head enough water on the 650. So does the water actually flow out the exhaust system on either or both original setups? Right now I have the water feed going to a T-fitting then one going to the cooling water intake nipple on the lower portion of the exhaust (this is the same on both engines) then the other one going to the head. Nothing is hooked to the small nipple on the upper part of the exhaust (exhaust gas comes out not water) .. So what is the correct cooling path I should set up? thanks
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