just thought i would give you guys alittle update on my build after 2 months haha. i got it all together and took it for its maiden voyage about 3 weeks ago. i had to ride in about 100 foot section of water becauss the lake was still froze over. but it ran awesome the mild porting/aluminum flywheel/bumped up comression made it hit hard, did a plug check and she was alittle rich, which was fine for now. but i was having a pretty signifcant cavitation problem, plus i had a leak when the ski was sitting in the water.
so i looked around and found that where the hull glue has been dround off there was a small hole in my tray allowing water to get in, no big deal epoxied it up and took it out again. once again ran pretty good but couldnt get a feel for how it will be because it was still cavitating,of yeah and it was still leaking. so since my motor is set back i cant see anypart of the driveshaft so i pulled the motor to see thats going on. set it in the water and saw saw it was leaking through the driveshaft. when i put the sx shaft in i didnt realize the one pump housing seal was not riding on the raised portion of the shaft. all i am gonna do it put a 1/4" spacer in the prop to move the driveaft back alittle bit and i have enough room on the holes in the engine bedplate to do this.
i would be putting it together now but, a guy from pwctoday sent me a skat 13-18 cutback prop for nothing and i just sent it to get fixed so i am waiting to put that in, he also really hooked me up with a set of v force reeds for the best price there is...
i have been told that the reason i was cavitating (most likely) was the fact that my pump was sucking air through the driveshaft seals. sometimes if i made a setup wake and hit the gas real hard it spin the prop so hard it would hit the rev limiter. i have an 81mm nozzle WW cone and a stock prop and according to everyone the stock prop is fine for my setup.
oh yeah abe at northgraphics.com hooked me up with an awesome graphics kit:biggthumpup: i would like to thank him for the great job.
other than that i am just waiting for my prop and i could go do some tuning, i didnt even turn the ECWI on yet:bs2: .
sorry for such the long write up, but i havent updated in a while and its 38 degrees and rainging and there is absolutley nothing i can do to my ski.