650 pump in Fx1 build

[shorty]

I started this build a while back after looking at special FX's build. I ground down the pump mounting surface so it was level. I basically ground the hull to fit the pump. I'll be using a skat-trak swirll 13/18 along with a TBM super pump cone.Here are a few pics. More to come. Thanks to Special FX for all the the help so far.

[hardcore]

i dont think ur pics loaded.

[special fx]

Looks cool so far. Make sure you do something to address the gap between the back of the pump and rear of the TBM cone. The o-ring seal needs to go far enough into the pump and be protected by a metal flange to guard it from the pressure (just like the stock end cap did).

I make an extension/spacer out of the old 650 end cap to take of this. I use teh R&D pump cone though and I'm not sure how this would work for the TBM?

[shorty]

I took a few more pics of what I've done so far. I also made a 4mm spacer to make the TBM cone work. I used a stock pump cone, just like Special FX. I need to do some final sanding and then run a layer of glass over the area I ground down. I think it's coming out pretty good. What do you guys think?

[rkm]

Its almost like that pump was designed to go in there...

[shorty]

Here is a pic of my drive shaft with U.M.I. coupler compared to a stock Kawi coupler.

[special fx]

That's correct for the coupler. The Yami is much longer than the Kawi and it works perfectly with that shaft........keep workin' ;)

[shorty]

I made some progress this weekend. Did some more fiberglass work and drilled the mounting holes and got the pump mounted. Now I just need to do some final sanding of the intake area and paint! :bananajump:

[special fx]

Lookin' good man!

Hey, one tip for ya.........To give you more adjustablility on the steering cable, you can pick up a 1" threaded coupler at Homer Depot and cut it down to 3/8" and then thread it into the steering cable fitting and then thread the cable fitting into it. In simple terms, in just moves the cable retaining nut back a little.

It's not necessary to do this, but it gives better thread engagement into the cable end. I'll post some pics soon, I'm getting ready to do another pump conversion myself.

[shorty]

Thanks for the tip. I'll have to hit up the Home depo this week.

[shorty]

Worked on the ski a little. Just about done! Next I can put the motor back in. Here are some more pics.:brap:

[special fx]

Looks good man!

I like the spherical ball end for the steering pivot. With that I don't think you'll need to space out the retention nut.

[shorty]

The ball end I used for the stering, came off a sea-doo VTS. Here are a few more pics of the build showing the mounting of the pump. I also thought I would show what the ski looks like.

[Wetracer]

Looking good. Mine is about half done!! Mike

[shorty]

Here are some motor pics. Nothing special 61x,180psi,B-pipe,wet-jet intake and 46mm carb. pro-tec cdi.:barrel:

[Slug]

Wow the 650 pump looks alot easier to fit than the 144mm. I'm over my 144mm pump. I didn't get the alignment right and it has chewed out several bearings aswell as a long and short shaft. How does the 650 pump affect the stearing? I was very disapointed with how much the 144mm pump slows the stearing on an fx1. Can't believe I threw out a 650 pump at xmas thinking I would never have any use for one.

[shorty]

I haven't finished putting the ski back together. Ski should be done in about two weeks. Then I'll just be waiting for all the ice on the lake to melt! Special FX said that the 650 pump made his stearing more responsive.

[special fx]

Finished your bearing housing today.....should be in the mail to you tomorrow.

[rocklobster]

i have most of the parts for this 650 conversion if anyone needs them. I am going the sj pump route instead. 650sx pump,reduction nozzel,steering nozzel,cap,short shaft. hull bearing. everything but the long shaft. $75 plus shipping. All in good shape.

[hardcore]

i have most of the parts for this 650 conversion if anyone needs them. I am going the sj pump route instead. 650sx pump,reduction nozzel,steering nozzel,cap,short shaft. hull bearing. everything but the long shaft. $75 plus shipping. All in good shape.

pm sent

[shorty]

Update, Finished putting the ski back together. Fired it up for the first time in about six months! I can't wait for the ice to melt so I can test it out.:dance:

[special fx]

Cool.......give us the report!

[Hogggman]

My parents canal is thawed about halfway down go hit it up

[shorty]

O.K. Hoggman! Let's throw them in.

[shorty]

The ice finally melted! I took it out for a very quick ride. It was too cold to ride long. It was glass but I could still tell right away it hook up way better. I really need to ride it more to get a good feel.:cheer2:

[hardcore]

Ok i just picked up a 750sx pump. What pump shoe do i need?

[Flash-FX]

Ok i just picked up a 750sx pump. What pump shoe do i need?

Most likely a modified/fabricated one with some glass work.

I think you are heading to uncharted territory with that. While visiting "Frankensteins Lab" that subject came up, but the 650 pump seems to have all the performance benefits without the extra gasket sealing issues. The 750-800 pumps might be better suited for racing applications with the quick change prop option (no silicone to dry in the pits).

Then, what scoop grate fits that pump shoe? Keep us posted.

[hardcore]

Anyone in the midwest done one of these swaps? I will drive and pay good money to have them do mine. let me know.

[Hogggman]

Never done one but I can do it for sure I live in MI

[fx1airick]

is your cly ported

[JoeD]

Pump looks good in there, Great idea with the pump cone, I know they work well on the sxr. Is that an x2 trim setup on the pump and are you running a trim system?

[shorty]

I rode the ski today! It was 73 and sunny. I can't believe how hard this thing hooks now! I used to just spin the prop down low. Now it explodes out of the water. The 140mm has no problem hooking up. Im sure the prop and TBM pump cone help. For any one with a FX-1 looking to improve hook up, This is a great way to do it.:Banane01:

[special fx]

Glad you dig it ;)

[shorty]

Since all my friends skis are apart and the weather has sucked, I cut up the back of my ski. I wanted it to be different. A good friend had done this to his ski and it looked very sexy. I hated cutting into a perfectly good ski this close to summer but now I'm glad I did it. Let me know what you think so far.

[special fx]

BTDT. Kinda of pain in the ass, but it gives the ski great lines.

[mtedder]

the lines look great!

[Hogggman]

Wow guess I been out of the loop for a while looks good. Funny thing about havin 2 jobs you miss a lot of stuff

[shorty]

Did some work on the ski. Here are some more pics.

[shorty]

Finished the ski. Big thanks to Paul for all the help with the turf!:barrel:

[special fx]

Looks cool! Changes the whole visual personality of the FX. Kinda like a make over for someone with a '90's hairdoo ;)

[fx1airick]

Looks pretty sweet ill be looking for you out on the lake

[waxhead]

This is great the pics you guys have been posting on these things its going to make it alot easier for my pump conversion as well by looking at what you have already done

[special fx]

Wax, I see you just got a driveshaft ;) I almost bid against you, glad I didn't!

[waxhead]

Thanks man
yeah just collecting stuff up for the build
it was a good price so i am happy

Just missed out on the lamey cylinder as well , i was going to put that on the fx
Just didnt want to go to much more as it was a bit of an unknown