RESTO An Extremely Modified X4

[Matt Braley]

You have to send your crank off to a real crank shop. You need one that knows Seadoo cranks like Falacon, Crankworks, etc. Make sure they use Jap or German bearings. Your 95 has a crank different from all other 787's so if you find a deal on a normal one you will need a different counter balancer and pto.

This engine has a used SBT crank that had life left in it.

17/21 is a lot of pitch but you can fine tune those things once you get it going.

 

[IDoSeaDoo]

I sold the original X bottom end cases to RacerX (I think). I'm not trying keeping everything stock. I only kept this hull because it's said to be lighter than the 96. I'll stick with the more common block and cranks. Makes it easier to replace them.

Were there any benefits to the X cases over the mass produced standard ones?

 

[Matt Braley]

No the X motors are just first bore over on the cylinders so they were over 785cc and therefore legal in the 1200 race class. All 95 787 cases don't have the "eyebrows" on the bottom of the intake area. RFI cases are like this also and they have case coolers too so I like to build performance engines with them.

 

[IDoSeaDoo]

Can't you just shave those eyebrows away with a dremel?

 

[Matt Braley]

Yup. They are the first thing to go whenever somebody does some porting.

 

[IDoSeaDoo]

Heh, I had done some chamfering on one of my old 787's but thought those eye brows were important to direct oily fuel to the bearings, so I left them in. Knowing that I can get rid of them... well, let's just say the next motor will not have them.

Do you know how to port these 787's? Know anyone that does? I know GroupK used to do it, but I want to try it myself. I have mini air-powered 90deg grinder and a dremel, and even bought these Sport Port templates you stick to the inside of the jugs to shave them out. I just haven't had the time to build my monster ski. Supposedly the Sport Port templates were made with some fancy software by a guy that did lots of them for lots of different engines. He studied the flow dynamics in 3d to create optimal port windows. I don't know anyone that's ever used them, so I'll be the first one I guess. I'll let you guys know how it goes (when it goes).

 

[Matt Braley]

I have not ported my own from scratch, just enough to match things so they flow well. I've bought up a lot of old race motors(a lot a lot). I've also bought out many old tuners and have lots of maps and notes from them.

I'm sure Bo Dupiest will port if hired to do so. He has a ready to drop in fresh fully ported 787 for $1500. I bought his loose parts with the money I had when I was there picking up the ski I bought from him. It has one of his engines in it and it's incredible. https://www.google.com/url?sa=t&rct...y5sKREQxnmYjWiE1orhn7Q&bvm=bv.142059868,d.cGw

 

[Matt Braley]

It's been slow moving with the holiday time off and travel. I did get the engine in and aligned as well as the exhaust system in.



I love the way the paint came out on these carbs

 

[glsmohio]

I do love that, how are you painting the stuff like that?

 

[IDoSeaDoo]

What paint are you using and does it hold up to heat/ marine conditions?

 

[Matt Braley]

I used a Valspar blue base and it seems brighter than the other ace hardware paint I've been using. Then I sprayed a little bit of the other colors into the can's lid(one color at a time) and sling the lid toward whatever I'm trying to throw dots on.

There should not be any heat on that engine that would damage any paint if there is then somebody's got problems. All my engines look like they did when I finish them even though I ride salt. That's because I wash them off and dry them out correctly inside and out before I store them. If I left the engine closed up in the air with salty water then it would turn into a turd quickly the first time.

 

[snikwad003]

If I left the engine closed up in the air with salty water then it would turn into a turd quickly the first time.

Just ask the salty hondas how that feels

Looking good Matt, I like the wild color scheme

 

[AdamXP800]

Going stock pipe?

 

[Matt Braley]

Yes stock everything almost.

 

[Matt Braley]

I got this thing buttoned up and ready to sell in the spring. I just need to find some more ugly stock handlebar pads to wrap a BT cover around. I have not wet tested it yet but it fires right up and seems ready to go.

 

[Ankeneyou]

Lookin good Matt! I've got several ugly bar pads if u need one or several.

 

[Matt Braley]

Yes I do need them, 1 foam and 2 pads I'm short.

Thanks I think it looks good. I think it will run and perform well for someone also. I'm happy to have maintained this while pulling over 2 grand in parts off it.