Octane Octane rebuild project.

Wolf Child

Just Another Octard
Location
All over C. FL
Got a chance to ride the Polaris a couple times over the weekend. Started with a 148 main, and a 80 pilot. Seemed to be running really rich, but the plugs were just light brown. Seems to be far from dialed in, falls on it's face when you open the throttle over 3/4. I went all over with the adjuster screws with minimal gains. Any suggestions from the Polaris gurus?

:thinking:

that's pretty much the exact opposite of every octane I've ever ridden.

I'll have to look at the my stockers carbs.
 
The 42's were causing me a bit of trouble. Ended up swaping the octane jet plate into them and jetting with the help from a board member. Now it is running strong. Impressive mid range and top end pull, really like the wammer hull.
 

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haggis

its raining again!
Nice, i bought a octane 2 years ago from a guy who had no idea how to look after it, when I eventualy dug it out from under a pile of tyres it was in a right state, blown crank, rod through the case, stripped threads in the cylinders etc. I bought the ski for £1000 and completly rebuilt the engine, new cases the lot and with a bit of graft it cleaned up great, my mate has it now.
 

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Have the ski running quite good now. Rips on top end and mid range, bottom end is now lagging. Has one dead spot when accelerating, then pulls like a train. Thinking about going back to the stock carbs just to see what happens. With the 42s the ski runs great when your wide open, but I can't get any sensitivity with these carbs. See what the stock carbs do next week.
 

ttiedt

02 Octane
Location
Lansing Michigan
Yea i wouldnt go back to the stockers. they're :):):):)ty. I would stick with the 42s. I know its pain to get them dailed but once you do you'll never have to touch them again you know untill you deside you want more power! lol! Keep an eye on your electrical box. they are notorious for getting water in them! i went threw 2 cdi boxs and a voltage reg the first two seasons. Same with my buddies 03. Its like a 3rd grader designed it. i ended up scraping it and went with a total loss. BEST INVESTMENT ever. you should kick it around! unleash the beast! And you should renforce your motor mount plates too. that vibration will ripp those plates right off the hull. I had an 02 pull the exhaust side completly off. Also reseal the bond lines so it doesnt water log! Like some one said earlier welcome to the world of octanes!
 
Gave up on the 42's. The ski pulled hard with the carbs wide open, but had very rough mid range and bottom end was weak. Running the stock carbs with 68 pilot and 138 main. Ski runs quite good with this setup. Top end power seems just as good as with the 42's and better bottom end. Currently looking for some Novi's. How does everyone install the Mikunis on the Octane? Different mainfold? Or modified stock intake? If anyone is looking to sell a Octane Mikuni setup PM me.
 
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