New X-2 goodies from Japan

ROTATION

Why must I build it??????
Location
South Africa
Legdragger
If you get rid of/mod the step in the tank a Blaster limited could fit.
Your carb is wrong way around, pump-out will give better bottom-end.
The tee in the header to stinger pipe is wrong if you don't have a Jetworks valve in.
It looks like the front head take-off pipe feeds the header, if so change it, put a tee in the mainline and run one pipe to the header and the other to the manifold. Gives you cold water into the pipe and when you shut-off the motor the water drains out to the pump.
 
Last edited:

Legdragger

Bringing it back
Location
New Hampshire
The FP head pipes look & act the same but are different. The yamaha head pipe will not wrk on kawi

Really? I always though they wee identical. I have to take the Suprejet headpipe out and the original 650 wet pipe out and see if I can figure it out. Or I guess I could call Factory pipe.

My buddy just got a mod chamber. I am going to borow it for some testing:thinkerg:
 

Scorn800

Ride for life
Location
North NJ
Really? I always though they wee identical. I have to take the Suprejet headpipe out and the original 650 wet pipe out and see if I can figure it out. Or I guess I could call Factory pipe.

My buddy just got a mod chamber. I am going to borow it for some testing:thinkerg:
I've been told the shape is alittle different on yamaha head pipe than the kawasaki. The yamaha bend will hit the bed plate. I've never used a B style head pipe on a kawi so I'm not really sure.
 

Legdragger

Bringing it back
Location
New Hampshire
Legdragger
If you get rid of/mod the step in the tank a Blaster limited could fit.
Your carb is wrong way around, pump-out will give better bottom-end.
The tee in the header to stinger pipe is wrong if you don't have a Jetworks valve in.
It looks like the front head take-off pipe feeds the header, if so change it, put a tee in the mainline and run one pipe to the header and the other to the manifold. Gives you cold water into the pipe and when you shut-off the motor the water drains out to the pump.

I have changed things a little since the picture was taken. The front head fitting was feeding the handlebar warmers but now it is just going overboard.

The rear head fitting feeds the bottem of the headpipe.

The top headpipe now goes to a jetworks valve and to the stinger.

Both cooling lines off the pump fed the exhaust manifold.

Should I tee into one of the main lines off the pump to feed the bottem of the headpipe? I like to have two sources of water for the motor incase of sand blockage.

Then send both lines off the head overboard?

And keep the top of headpipe to stinger with the Jetworks valve as it is?

I like the idea of the pipe draining out the pump when it is shut down.:fing02:

How does the orientation of the carb affect tuning?
 

ROTATION

Why must I build it??????
Location
South Africa
The way you have the carb , the fuel from the progression holes can run down the manifold wall onto the bottom at low speeds. If you have it pump out, if the fuel runs down it is on the topside of the manifold an once it gets to a step(reedblocks) it will drip off and fall into the airstream.
Both from head overboard.
Keep the jetworks setup

When you tee into the feed pipe make sure the leg of the tee is facing the pump, then you will get equal flow to header and motor.
 
i cant believe i havent found this thread till now . ive been thinkin along the same lines as you pete with the hull and engine set up . with the engine i have a small pin 750 (bored out to 780) and i have new sleaves on the way at the moment (820cc) . i was thinking about useing a 650 crank and bore the pins out to take the 750 big pin pins . when i bore the crank to suit the pins i was going to off set hole 2.5 mm to give me a 5mm stroker crank .
with the light weight hull i havent decided which direction i was going to go yet . i work part time for for cousin who has a busness building stuff out of carbon fibre ( ive already built myself a push bike and a mutisport kayak out off carbon ) and i can build wot i wont there .
the new x2 is getting relised here next mounth and im working on a guy i know who is getting one to see if he will lend it to me to take a mould off it or i was just going to use one off my old x2s to make a mould off .
ive already been talking to my cousin about wot lay up process and weither it would be better to do a wet lay up and vac bag it or use resin infusion .
 

dbrutherford

Parts Whore
Location
Fairmont, WV
Were you meamimg that you were going to use 750 rods on a 650 crank?

I am not sure but I think the rod lengths are the same just the distance from the center of the crank is different. I am not sure.

I know Kaw and a few other manufactures used the same rods on a couple of skis. Anyone?

I am going to try and find a crashed 800 and use it's engine.

Does anyone know if an 800 FPP "Wet Pipe" will fit in an X2?

DBR
 

Legdragger

Bringing it back
Location
New Hampshire
i cant believe i havent found this thread till now . ive been thinkin along the same lines as you pete with the hull and engine set up . with the engine i have a small pin 750 (bored out to 780) and i have new sleaves on the way at the moment (820cc) . i was thinking about useing a 650 crank and bore the pins out to take the 750 big pin pins . when i bore the crank to suit the pins i was going to off set hole 2.5 mm to give me a 5mm stroker crank .
with the light weight hull i havent decided which direction i was going to go yet . i work part time for for cousin who has a busness building stuff out of carbon fibre ( ive already built myself a push bike and a mutisport kayak out off carbon ) and i can build wot i wont there .
the new x2 is getting relised here next mounth and im working on a guy i know who is getting one to see if he will lend it to me to take a mould off it or i was just going to use one off my old x2s to make a mould off .
ive already been talking to my cousin about wot lay up process and weither it would be better to do a wet lay up and vac bag it or use resin infusion .


Where are you from w-nut?
 

D Slicker

Durham, dont forget it
Location
Pottstown, PA
.

Does anyone know if an 800 FPP "Wet Pipe" will fit in an X2?

DBR


I dont know if it will. I have a wet pipe on SX-R. I think the chamber may be an issue. I have a coffman on my X-2 now and it fits with a liitle bit on space left. I know my wet pipe is thicker. I have to take my head pipe out this week I will see if it will fit.
 

Legdragger

Bringing it back
Location
New Hampshire
I am going to try and find a crashed 800 and use it's engine.


DBR


I was looking for an 800 motor for a friend of mine and Paul Lehr told me somebody had them on a shelf taken out of SXR's. I am not posative but I think He said Jazz Motorsports had them. If they don't hit Paul up. He knows where a lot of cool stuf is hiding.
 

Legdragger

Bringing it back
Location
New Hampshire
I am going o try this Blaster Chamber on my 840 when I get it back together. It is supposed to be a Blaster Mod Chamber before they released the center blead style that is popular now.

f8_1.JPG
 

dbrutherford

Parts Whore
Location
Fairmont, WV
Yeah I am ticked that you cannot just buy an engine from Kawasaki! Well I figured I would use all aftermarket everything else for the powerplant (Reeds, Couplers, Manifolds, Exhaust, Carbs, Head, Electrics ie Total Loss... ect)

I am too broke now for an engine purchase. But If I find a good deal I will jump on it. After I put foot straps on my X2 I realize I am lacking everything else... mainly power. Who needs handeling?

As for the pipes, yeah I had a Coffman in my 650 SX. The instructions from Coffman's didn't mention that you need a crow bar and a gallon of 4D-40 to put the sucker in!
 

dbrutherford

Parts Whore
Location
Fairmont, WV
I wish FPP would let me come to their shop and just "experiment" with all of the different pipe options..... As for gas tanks, I will do what Pete did and just have one made to fit any pipe I choose. The hull and positioning is the key factor. You can always have aluminum tubes bent up and get crazy bent looking rubber hoses.

DBR
 

dbrutherford

Parts Whore
Location
Fairmont, WV
Yeah mine was a royal B!tch. Right were the two halfs are coupled together, the metal bands rubbed the hull but nothing too serious. I had to use a crow bar yo pry the hull out away long enough for my friend to slip the pipe inside the coupler and tighten it down. This si why I was goign to switch to a FPP 650 pipe for my X2 so I only had one coupler and the water box hose to deal with. Still though, that ski ripped way more than the stocker I tool around on now.

But atleats I am riding and not wrenching or maxing out Credit Cards

DBR
 
im on the other isde off the world pete im in new zealand ,
dbr im just in the process off working out which is the best way to go for the cranks i know i can turn the 750 small pin into a 4mm stroker (20mm pin vrs 22pin giveing 2mm thirther offset) and am about to pull down my old 650 engine i have sitting round and working out wot i can do with that crank . i did a real quick comparsion at my engine builders shop the other day and the ros lenths were the same . my engine builder did alot off mdified x2 back in the day when they were the thing to have and race .
i am going to be doing all the machine work myself so that will keep the costs down to just parts .
i also emailed fpp last night askiing about diffrent chambers to see wot they would recomend havent checked for the replay yet
 
Location
NY
I have a FPP blaster limited like the one pictured above and the FPP 750SX limited. Im trying to decide which one to run. Let me know how your tests go Pete.

I am missing the Factory manifold, has anyone used a differnt brand (westcoast, PJS, LS) with a factory system?
 

Legdragger

Bringing it back
Location
New Hampshire
Any kawi 650 manifold works. Factory pipe uses the 650 headpipe pattern for their mainfold to headpipe gasket so it is pretty easy to get any 650 manifold to work.
 
Location
NY
i didnt know if there were any issues with the exhaust hole diameter being different or misalligned.
 
Top Bottom