My 750 X2 Build.

[jefferz]

Bought an x2 from a friend didnt know what he had. Paid 100 dollars for it.

So This is how it begins. In Stripping it down found out it has a 750 in it. BONUS!

Heres pictures before i started to dig in.

[jefferz]

Heres inside the engine compartment before the tear down.

[WFO Speedracer]

Heres inside the engine compartment before the tear down.

I hereby dub thee the Dealmeister! :bigok::laugh2:

[jefferz]

Started to pull the motor out by removing the fuel tank and then the exhaust, Found out that the exhaust comes out the back next to the pump and i mean like right next to the pump. Also knew it had dual bilge pumps. Took them out and got to clean them down to find out they are 500 gph provided picture below.

[jefferz]

and finally the motor, I know a guy whose really good with engines especially small engines. Everything this guy has runs great and fast. He's rebuilding it for me because i'd rather not mess with what i really dont know to much about. I know enough about motors to find out whats wrong and get them running again to a point but i wouldnt know where to start in rebuilding one.

[jefferz]

now i have started to sand it down, but i have not gotten far, ive just been to busy with other things.

but my plans are to repaint it. Also to redesign the bottom of the hull. A guy on a pwc today did it. I got some instructions on how he did his and i'm pretty good with fiberglass.

Here is some pictures of his. and a link to his build thread on pwc today

you really want to check it out even if your a wave blaster fan also because he modified the seat also

http://www.pwctoday.com/showthread.php?t=121462

[jefferz]

I hereby dub thee the Dealmeister! :bigok::laugh2:


you have no idea.


So what do you guys think?

[Kennay]

What cylinder is that???

And MEGA score.. congrats

[jefferz]

What cylinder is that???

And MEGA score.. congrats


i really wish i knew. The kid i bought it off knew nothing about it, I'm still trying to contact the original owner.

[ADDict]

Talk to Crab on here about that bottom mod. You'd have to ask him, but I'm sure he told me he probably wouldn't do it over again. He really liked it, but over all I don't think it was worth it in comparison to just shortening the hull and throwing tubbies on it. Ask him though, I don't want to speak for him.
As far as that engine goes, I'd like to know what that is. I'll give you 10 dolla for it!
You got a hell of a deal man. Good luck to you! Let us know what you find in that engine, please take some pics of the broken down cylinder, bore size etc. I'd never heard the name stamped on the head.
Keep us posted!

[crab]

Yea, I like it for surf, but after riding Petes I really think shortened with tubbies is all they need.

[shawn_NJ]

Hey where in NJ do you ride?

[jetx]

Nice score! If you decide on a set of tubbies, I have a new never installed set of surfjetlouie side sponsons I would be willing to part with...PM me if interested.

[3wheelerdude]

I have filled the bottom of a friends X2 flat this summer and after a few rides on it, I really dont think it was worth it. Not a big difference and lot of time to make it solid and good looking.

I agree with shorten hull and I have yet to try tubbies.

Congrats on the find!

[madscientist]

bottom end is definatly kawie, but the top looks to be a jap setup similar to the yami

[x2skier]

Nice grab. Did you at least use some sort of lube or go with a straight dry run?

For the hull mod, I put on tubbies and cut 2" off the back and have no problems with stability or keeping the nose from "digging".

[jefferz]

Hey where in NJ do you ride?

Greenwood lake, Seaside, and lbi mainly.


Nice grab. Did you at least use some sort of lube or go with a straight dry run?

For the hull mod, I put on tubbies and cut 2" off the back and have no problems with stability or keeping the nose from "digging".

Straight dry run i figured it would be less messy. lol

[jefferz]

so i need someone to rebuild my motor.

as cheap as possible.

[shawn_NJ]

If you just want a regular rebuild, Groupk is only a few bucks more than an SBT motor. And I trust the quality alot more. He had both of my kawi motors back to me in less than 4weeks.

[jefferz]

If you just want a regular rebuild, Groupk is only a few bucks more than an SBT motor. And I trust the quality alot more. He had both of my kawi motors back to me in less than 4weeks.


well the motor is already had a ton of work done to it. problem is its need work to get it back to running condition.

[jefferz]

so tearing apart the motor

ready for this lol

i also need some help with this as i've never done this before.

Looking at the motor the head the pistons nothing seems to be ruined its all still good. Well, at least i think so.

[jefferz]

heres what came out when i took the cover off the flywheel

[upstand2]

Go to the Hardware store , and get some Osmo . It's Phospheric acid and only 13-15 dolars. Soak your rusty steel parts in it overnight. They will look new in the morning. Read the directions , but I'm pretty sure it's not good to use on aluminum.

[jefferz]

i took care of all the rust already problem is im having trouble with getting they fly wheel off the crank. and i need to get it off so i can get hte screw thats on the metal wheel behind it for hte msd ignition.

[jefferz]

okay soo

[Motorheads5]

okay soo
nice score the x-2 forum will rock again this winter :Eyecrazy:

[Sospikey]

That is a d*mn nice find for $100! Good luck with your build!

[jefferz]

so im still in need a 750 crank.

[Motorheads5]

so that's a small pin right? kinda hard to see the intake in the pic's.

[jefferz]

im guessing so. because it doesnt have the two bolts that are to the inside (see picture below)
dont let the picture above from the tear down fool you apperently the person used big pin gaskets.



http://www.sbtontheweb.com/Merchant2/graphics/00000001/kawbolt.jpg

[Motorheads5]

I think water worx had a excellent deal on some crank's earlier this year you might send him a p.m. and ask .

[BlueBreadTruck]

a stock 750 cyl has a flat side....looks like you may have scored!

[jefferz]

so umm i think im going to just part out the ski and do some things to my stand up

idk.....

[Twinturbostang]

finish it you will love the x2 over a stand up.

[PWCdoc]

I've got a freshly rebuilt small pin crank if you're looking and still interested.

[sykal]

so umm i think im going to just part out the ski and do some things to my stand up

idk.....

dude don't give up now. you're far in...just finish it.
i been following your build and im eager to see it finished man.

[PWCdoc]

Hell, if you send me the motor, pay for parts, shipping and such I'll rebuild it for you. I'd love to get a peek inside that cylinder.

[jefferz]

so the skis painted all white.......i got lazy lol. 750 is in getting the custom head gasket tomorrow. and just got to sort out the electronics

yamato head
yamato cylinder block
west coast exhaust manifold
team butch pipe.
dual carbs.
rear exhaust coming out next to the jet pump.
and stock 750 electronics......

sorry for the terrible picture


http://img105.imageshack.us/img105/40/dsc0020i.jpg


http://img253.imageshack.us/img253/5337/jetskiin.jpg

[X2freestyle86]

NICE FIND!!!! that thing is gonna be SICK! any questions about hull mods let me know, i chopped the living heck out of mine and replaced the deck with carbon fiber, so i know just whats inside.

[jefferz]

http://img134.imageshack.us/img134/7057/x2new.jpg

[Dragonfly]

Keep up the good work man that thing is going to rock!!!:Banane09:

[Conquistador]

good luck! I rode diamondaudio's 750 x2 the other day & it flat out RIPPED! The ski were screaming in unison. :cool: Badass for sure

[jefferz]

i cant wait ive been calling around about the motor because i was trying to find a gasket for it, but i had to get one custom made. I found out alot about it and supposedly its like a great set up.

[Conquistador]

i cant wait ive been calling around about the motor because i was trying to find a gasket for it, but i had to get one custom made. I found out alot about it and supposedly its like a great set up.

I would think that Atlantic Jet Sports right there in jersey would have what you need. http://www.atlanticjetsports.com/engine__gasket_kits.htm

[jefferz]

I would think that Atlantic Jet Sports right there in jersey would have what you need. http://www.atlanticjetsports.com/engine__gasket_kits.htm


nope no ones carries the gasket i called alot of places, my only luck was to go to a local machine shop and have him make me one from copper

[JeffX2&SX]

unbelievable score on what seems to be a former race boat. I hope it all goes back together well, gonna be sweet.

[jefferz]

only thing im waiting on really is the custom copper gasket i have no idea when its going to be done.....

[jefferz]

the copper gasket is not going to work out...... used three bond 1211 since the sleaves had o rings in the top.

did a compression test 185psi in each cylinder. im excited to get this thing on the water....

sat is going to be test day

[w-nut]

nice i cant wait to hear a ride report .

[DezKnotz]

jeff is today the first ride or what,

[jefferz]

nope today was going to be the first day.... but issues with my truck and no being able to bring it to the lake so i just rode my 650