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That is the mounting bolt hole #2 in the torque sequence. It’s between #2-#3 cylinders. The fix for this is replacing the head with a ultra300x cylinder head.

After I found the problem I went back on a Facebook forum and saw a reply to my post. This is a common problem for the 250X and 260x. Right between the #2and #3 cylinder. ...

Thought of that too. I sealed it all off and pressure tested it. It held pressure. I’m going to make a gasket to replace the head gasket and the exhaust gasket. That way I can pressure test the...

Hi. I bought a 2008 ultra 250X with a spin crank bearing and water in the oil. I rebuilt he engine and ran it for about 10 minutes when I noticed water in the oil again. I did notice when i tore it...

I'm in!!

I put a 750sx nozzle on mine and problem solved. 5000rpms and I could keep my hand there all day long. Ran cool at idle too. Although I didn't get a chance to transfer the stock JM steering nozzle...

Delagem do you or can you get a a picture of your exhaust on your JetMate. Mine seems to hit a wall at 6100 and 33mph. I'm sure I can hit high 30s if I could just figure out my rpm loss. Thanks in...

F-ing iPhone!! It posts pics upside down!! Anyways, I took my JetMate out again today. I decided to try the boat without the swim step/trim tabs attached.. Long story short I'm not putting them...

Hey everyone! So I took the JetMate out today.. It was windy and choppy. I also put
4- 5gal gas full of water in the back. I figured the 14/20 prop would be too much but NOPE! Got up on plane...

Filling in the tunnels brought the nose out of the water so the spray was a little farther back. The speed went from 27mph cruising to 30mph with the 750. I took it out this past sunday. Now it ran...

I'm selling my 1990 JetMate. It has a lot of mods including a 750cc big pin motor, filled hull tunnels, tachometer and much more. I have titles for both in hand. I've seen them selling for the same...

Sh!t... I'm just saw my post. I meant "talk" not take. Total typo. I'm sorry. I didn't mean to offend or insult anyone.

http://mohave.craigslist.org/boa/5594891199.html
Saw these on craigslist in my area. Hes asking top dollar but figured post it just in case someone wanted one and would take him down.

I drilled two holes thru the bottom exhaust port. Not sure if it helped or did nothing. I was going to run it without the box and its just too loud for me..

Ok. I thought the hull was a concern too so I foamed in the tunnels and glassed over them. it performs a lot better but still stops at 6300. its not perfect but it works. ...

Hey 64coupe.. I did the same conversion. 96sts750 into a 90 JM. The problem I'm having is the STS ran 43mph at 7400rpms. I can barely get 6300 rpms out of the JM with a 12/17 prop. I'm running a...

Its a stock 750 dual carb from a 96 sts. I used the electronic also. The tach was wired in off the ebox because of the wire harness that it plugged into was left in the sts. I was stupid and messed...

I switched out the 800sxr venturi cone/nozzle for the JM stock cone nozzle and the engine ran hot from start to all rpms. Switched it back and ran cool again. It looks like I'm going to have to fab...

The cover I use. And its great because it covers the hydro trailer too. These should be right side up..

http://i289.photobucket.com/albums/ll215/nvdafreek/IMG_2065_zpsyepn68az.jpg...

I Got 25.3 with me up front and the hull not filled, 750BP, me in the drivers seat. I was able to get it to 29.7 with the throttle strapped and me moved to the back. That was some years ago tho. I...

I'm going to retest with different scenerios like a ballast on the rear seat and also switch props now that the hull is done. Ill try to post pictures and results asap.

It rides perfect on flat water... :lol:. Now waves on the other hand.. It does nothing to cut the waves. I ran my GPS and got the numbers. It gets out of the hole nicely. and cruising around is...

ok thanks

Chance_garbageman do you have a stock water box for the 750sx/sxi? drive shaft?

I would have posted sooner but I cant from my phone and don't use my laptop all that much. The prop that I had in it was a 12/17 small hub scat trak. Solas says that with a modified engine they...

485161

Hey everyone. I picked up a 1990 jetmate about four years ago. The motor and electronics in it were all exposed to the elements. That was fine because I knew I was putting in a 750 motor. I...

What foam did you use to form the bow and where did you get it?

Well if I get bored enough I might drop and 1100 motor in the jetmate. There's an idea!! Alot is going on right now so I'm gonna have to see how the next few months go. It sucked watching em go.

I'm so sad I sold them. Yes they took both. Cash offer I couldn't refuse. Yes they got a good deal. I have a jet mate now to concentrate on.

Sold...

Bump..

Wow that didnt make sense. Sorry. People on the other side of the country want me to ship it. I'm not shipping it anywhere. I want $6000 firm. I'm not sure on the hours but prolly around...

So I'm seeing alot of other side of the country. I should have put $6000 firm.

$6000.o.b.o

I'm selling my 2006 hydro space s4 for 6900$ o.b.o. It is stock and runs great. It will come with brand new jettribe cover, diagnostic cable, extra oil filters, 3 extra map sensors and new odessay...

Jonny, i wondered where u guys went.. I pulled the jetmate out and noticed all were gone. Now i know why. It was real cold by the water too. And i wasnt really in it.. By the way anyone see a...

I care!!! Wait, what are we talking about? :)

Do you have the drive shaft carrier bearing bulkhead housing? it doesnt matter if the bearing and seals are good or not?

Do you have the drive shaft carrier bearing bulkhead housing that mounts to the ski?

I just finished mine and came up with an easy way to cool it.. Replace the fitting in your pump with a 3/8s. then drill and tap the other side of your pump to accept a 3/8s fitting. screw it allthe...

Im gonna try and get out to test the 1100stx. I wanna get it ready for the next step in my project.

Question? Im reading and all you guys talk about a 1100zxi motor. Isnt the 99 stx motor the same? Will it work? I found a 99 STX with a bad motor that im gonna rebuild. Im gonna use it as the donor...

Im in!!!

I'll be there around then too. Im also bringing bouys.. Ive got my eye on the new Benelli B3S. Its so bad a$$!!!

Ill be out around 1 or 2 with bouys. Anxious to try the new handlepole on the kawi.