1990 Superjet

I Recieved My Superjet From A Freind Who Bought It New In 1991 And The Bendix Came Apart And Broke The Bottom Case And Has Been Sitting In A Garage Ever Since I Recieved. I Repaired It And No Spark So I Replace The Cdi. And I Ran It. The Problem Is The Thing Was A Turd So I Put A Coffman Pipe Jetted. Works 201 Intake, Umi 0 Degree Bars And Throttle. Wammer Footholds And Turf Kit, And A Blowson Pole Spring. I Just Put A Used 14.5/18.5 Impeller Form Solas. I Need Some Imput What Mod Is Next
 
tryt the search function...there is more info on modding the superjet than you will be able to process....

and welcome.. :)




however, the answer to your questiuon is either replace the 650 with a 701 motor..or add footholds
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
I think the 650 cases with 701 jug will be alright for snap, and low end punch, I would think they might hinder the top end a bit.

No problem though, 61x 701 cases are CHEAP, like $60 or so commonly.
 

tor*p*do

Squarenose FTW
Site Supporter
Location
NW NC
My 650 hits hard and runs good with a Protec pipe
This winter is refoam, footholds, etc
Maybe 701 next winter, or earlier if I blow the 650 :rocketwhore:
 

tor*p*do

Squarenose FTW
Site Supporter
Location
NW NC
I had only planned on footholds
but after I cut into the ski and water was POURING out
I went for it!

Build thread: http://www.x-h2o.com/threads/28797

port.jpg
 
my superjet was water free i bet my snjet doesnt have 25 hours on it. it was a great find
i also put a recreational head from protec. i could keep up with my buddys 2000 superjet
its just time to build my motor i want. i used to port 2 stroke dirt bikes but never really look at the port timing on a superjet oh ya look like you have you hands
 
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tor*p*do

Squarenose FTW
Site Supporter
Location
NW NC
my superjet was water free i bet my snjet doesnt have 25 hours on it. it was a great find

Lucky man! Nice find!
My 750 was like that.
I would be done now, not half way through, if it had been dry.
Something to do with a hole in the bottom and leaky bond line:grumble:
 
i need some room like that. has anyone ever expoy cases. i used to put jb weld in the crank case to have more crank case pressure serious low end. i love projet like that but they are money pits like i have 2000 in a 96 750 zxi that i paid 500
 
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