New toy

zimmy

zimmy

Ok, so here is the deal.
i ride surf with the wavejunkies in Va beach, and ive been waiting to find a deal on a x2 so i can build one up.
I rode Petes x2 at Wavedaze last year and it was a blast.
I finally found one, its an 87 model with a 650 in it, but the electrics are burnt up. i got a few extra west coast parts, and i also found another 94 model for a buddy.
you guys seem like you kow your skis pretty well.
what i would like is an idea of what mods are most recommended, i know the 750 upgrade is done but what other engines can fit (800cc) and what 750 model engine is best suited.
im going to rig up a trim system and also install footstraps.
what do you guys think are some good things to change on my ski to start out with?
thanks
Zimmy
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
So far I have seen 701 Yamis installed and I put a Seadoo 720 in mine,as far as the bigger seadoo engines its a no go,there has been talk of a Yami 800 conversion but no one has seen one yet to the best of my knowledge.A couple of us are working on the Yami conversions as we speak.I am happy with the 720 in mine so thats what I am sticking with. I know a lot of people are interested in the Yami conversion so I plan to put some time into that.I think I have the engine bedplate pretty much figured out.Stay tuned.:dunno:
 
Vumad

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
You can have fun riding a stock 650 X2, so I'd say the 1st mod you need to do is get it running so you can have an idea of what mods you'd like to do to it.

I really don't believe any mods are necessary to start enjoying it. Don't take anyone's word for it, because people are misleading. After you spend some time riding, you'll know which mods you need.

The only mod I'd suggest right out of the box is improved throw in the steering.

Out side of that... ride it and decide what you'd like. I'd suggest tubbies, or better trim, or a shortened hull if you plan on riding in the surf. My biggest problem is the wave throwing the back end of the ski over the nose. You don't *need* anything to start, reguardless of what people want you to believe.
 
madscientist

madscientist

chilling with these guys.
Location
good old p'cola
check out our build threads for the insiration and the sky is the limit.

for me the 750 right now will be a waste but an 800 or seadoo 720 may be in my furture
 
zimmy

zimmy

thanks for the info guys.
i have located some elctrics to get the 650 running so i can at least ride it for now!
the mods i will do will be in the future, but the ski seems like it has huge potetial just looking at the amount of space in the engine compartment!
is the 750 a straight drop in? am i looking for a zxi, ss... what model is the best?
could this thing be rolled in the flats on a 650 motor?
 
Vumad

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
zimmy said:
thanks for the info guys.
i have located some elctrics to get the 650 running so i can at least ride it for now!
the mods i will do will be in the future, but the ski seems like it has huge potetial just looking at the amount of space in the engine compartment!
is the 750 a straight drop in? am i looking for a zxi, ss... what model is the best?
could this thing be rolled in the flats on a 650 motor?
Click to expand...

Good call. Never throw mods at something until you've ridden it enough to understand why you're modding it.

The 750 is a straight drop in. It uses the 650 bed plate. Just bolt it in. You need to find a place for the electronics. Most of us strap the electronics to where the oil tank used to be.

No, you wont be doing a flat water barrel roll with a stock 650. I do have confidance that you could do it off a large boat wake or in surf if you knew what you were doing.
 
shawn_NJ

shawn_NJ

Chasing waves.
Location
Daytona Beach
zimmy said:
thanks for the info guys.
i have located some elctrics to get the 650 running so i can at least ride it for now!
the mods i will do will be in the future, but the ski seems like it has huge potetial just looking at the amount of space in the engine compartment!
is the 750 a straight drop in? am i looking for a zxi, ss... what model is the best?
could this thing be rolled in the flats on a 650 motor?
Click to expand...

If you dont have too, dont waste your time with the 650 motor. Look for a 750SX small pin if you dont want to buck up the $$$$ for an sxr motor. Throw a new carb, compression bump, FPP, timing advance ...... and that alone will make for a sweet setup that will keep you happy for a while. I personally like running the 650 electrics for the lighter flywheel and ease of timing advances.
 
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zimmy

zimmy

i think when it comes to this i have a lot to learn when it comes to things like the small pin/big pin engines, how and what mods work best with what.
im gonna run the 650 right now cause its what i have, but i will be browsing for a 750, i just need to learn the lingo on what does where and how with each engine so when i come across i good deal, i will know if it is what i want to install in my ski.
i heard something about different 750 engines offering different performance. is this true?
i did see a guy had a blaster b pipe in a ski, what manifold does this run off, cause i have a blaster b pipe that i could use right now, wondering if it would be better than the west coast pipe i have waiting right now.
now when it comes to keeping the 650 eectrics for the 750, what type of issues will i run into? i have seen a 750 that had the stator mounted onto the flywheel cover, is that wrong?
 
w-nut

w-nut

x2 nut
Location
christchurch new zealand
you will get lots off diffrent answers to diffrent set ups .
in my opion you cant go wrong with any 750 engine its a big steep up . the b pipe will be fine not sure how the yammy head pipe will bolt up to the 650 manafold tho . you can use the standard 650 exmanafold just open it up to match the head pipe. a 46mmsbn carb and it will rock and keep you happy for a far wile .
 
Vumad

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Any 750 should be fine. It's like the debate of a dual carb vs. a single carb... there's no right answers.

In a nut shell, The Kawi 750 engine came in two versions. The small pin engine has a smaller crank. Some argue that the smaller crank is lighter and allows for better bottom end. The 750 big pin had a larger crank, while some argue that the big bins heavier crank hurts the bottom end, the big bin engine has a higher intake velocity that makes up for it and may even give better bottom end than the small pin.

The moral of the story... noone knows the real answer. Any 750 will do.
 
shawn_NJ

shawn_NJ

Chasing waves.
Location
Daytona Beach
I have both a ported big pin and a small pin that I picked up cheap. There identatical carb setups (brand new single 46's) small pin definetly rips away harder down low. Big pin has a FP, small has a coffman. The big pin makes comes to life a little to late for my liking. Supposedly you can have the bigpin cylinders machined off the bottom and that lowers the port timing making them better for freesytle, but I never did tried it. I had some killer deals on x2's I passed up just becuase I did not want another big pin motor. I have ridden (5) 750 x2s and the 2 that stood out were both 750sx take offs. But I agree with Vumad, its all personal preference.

Zimmy, if you need any other electrical parts to finish the ski I shuold have them. Let me know.
 
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x2skier

x2skier

Location
Mechanicsburg, PA
Since you rode Pete's X2 your opinion of the X2 is already skewed. I highly doubt you will be happy with the 650 setup. Honestly, they're fun for about the 1st weekend in stock form. Once you get the hang of them it's like riding a big turd.........slow and way underpowered.:drive::drive:
With that said, I do recommend at least getting some ride time with it stock before modding though. It's always good to have something to benchmark against.

Do the basics and you'll be happy (for a while):
- 750 engine (BP or SP is always debatable) = $500
- 44 or 46 Mikuni carb & manifold = $200
- Working set of 650 electrics = $100
- Coffmans pipe (of course FPP is the better choice) = $200
- SXR stock prop machined for 650 Pump = $125
- Figure on being able to sell your 650 engine for $250
- Grand total = $875 +/-

Good luck and welcome!
 
S

sflsurfrider

the guy is asking for what mods people recommend.

why is he being told not to listen to ANYBODY's recommendations???

it seems only logical to get recommendationsfrom those that have been there and done that.

isnt that what the site is about?
 
Vumad

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
sflsurfrider said:
the guy is asking for what mods people recommend.

why is he being told not to listen to ANYBODY's recommendations???

it seems only logical to get recommendationsfrom those that have been there and done that.

isnt that what the site is about?
Click to expand...

WHo said not to listen to anybody's reccomendations? I'm the only one that said anything remotly close to that, and what I said was basically... Don't listen to what anybody tells you what you *NEED* to have. Put the ski in the water and decide what you *WANT* to have.

Lots of people are new to something and come here and are told their ski is a big ********ty POS and they *HAVE* to upgrade it or it wont be fun. That's not true. I started on a 650 SX that had a 650 and it's heavier than a X2. I then went to a poorly tuned 750 X2 that had *less* power than the 650 engine did. I like the ski so much, I decided to spend more money upgrading it. Yup, that's right, I thought the big slow stupid turd was fun, even after riding a superjet, because I'd never ridden anything like that big stupid turd before.

The moral of the story... Don't upgrade until you understand *why* you're upgrading and People have their own opinions of fun.

And... I *know* my astrics will *piss* someone off so *i* just want to throw a few *more* out there to *drive* the point *home*.
 
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