650/X-2 winter x2 build

Austin

Austin

Location
Loveland, Colorado
I pulled it all out again and I am replacing the gaskets. I thought the gaskets were good but they were leaking on the intake side. so I ordered gaskets and they should be in steves mail box today. I have The ACT test tomorrow first thing in the morning so I wont mess with it tonight but in the next few nights I will have it together again. Once it starts I will have the finished pictures up, Right now its a little dirty since I have been pulling engines in and out but I will be polishing it and taking pictures when its 100%
 
TheCoz43

TheCoz43

Jet Surfer
Location
Pismo Beach, CA
Lot more work that I thought

I was really motivated after seeing your first posts. I went and cut off the back moved the steering back and cut everything off the hood, but I did not realize how much sanding glasss and bondo it would take. I finished up the 2 seater seadoo and practiced painting it first. Then did the x2. I can't wait to get back on the water too! Thanks for everyones help so far on my trim lever. Can't wait to see Austin's ski. Wish I had a 750 motor!!!
 

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Austin

Austin

Location
Loveland, Colorado
Yeah lol! I have about 160 to 180 hours into mine this winter majority sanding time, but I could of saved my self alot of time if I would of layed the fiberglass a little smoother!

Your ski looks great! WHat are you doing for a engine?
 
Austin

Austin

Location
Loveland, Colorado
Just put it all together ANd tried starting it but it keep haveing huge back fire, so I kept trying it and then all the sudden huge bang and pipe flew forward in to my tank and flames started dumping out of the head pipe. I fire distinguished the fire and here am now back on the computor trying to figure out whats going on.
 
Austin

Austin

Location
Loveland, Colorado
No I wish I was videoing it, I had a pretty good jump when the bang went! I timeing is advanced a degree or two but thats it. All stock electronics too, I tryed a different cdi because I thought my other one had week spark. That might be it I think. I will switch my old cdi in real fast and try it
 
Austin

Austin

Location
Loveland, Colorado
Yes got it Figured out! Took it out riding yesterday. RAN GREAT, minus some small stuff I need to finish of like stearing and the pump cavatating! I will up load a video in a minute. I will get final pictures when I get the new pump in it in a couple days!
 
TheCoz43

TheCoz43

Jet Surfer
Location
Pismo Beach, CA
That is sooooo Bad Ass!!! It sounds sweeeet!! I can't wait to get finished too. I put new domes in my bad bones head, on a 650 bored 1mm over, and I'm over 300 psi compression even on both cylinders. What compression are you running? Should i be concerned with running such high compression or is that good? I have all performance parts.. what do you guys think?
 
Snivilous

Snivilous

Location
SW UT
You're running 300psi PER cylinder? People run race gas over about 200psi. You'd need a really strong engine to handle that I would think. I know there's a tons of variables for what octane to run, and all of us just do a very rough estimate, but are you gonna be using octane booster in your race fuel? That things gonna be PRICEY to run, though will have a ton of power.

I run at sea level 190psi, and 93 octane. I could mill my head down quite a bit to go higher, but don't wanna be running race gas. I've never heard of running over 225psi, though maybe I don't get out enough lol
 
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