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Rok jetting

 
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Rudy Pantaleon



Joined: 26 Apr 2003
Posts: 73
Location: United States, Florida, Miami

PostPosted: Tue Apr 30, 2013 5:02 pm    Post subject: Rok jetting Reply with quote

Hello, does anyone have a jetting chart for the vortex rok with the dellorto 30 carb.
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jim rogero



Joined: 18 Jun 2005
Posts: 1030
Location: United States, Florida, naples

PostPosted: Tue Apr 30, 2013 8:58 pm    Post subject: Re: Rok jetting Reply with quote

Rudy Pantaleon wrote:
Hello, does anyone have a jetting chart for the vortex rok with the dellorto 30 carb.

Rudy No, but if in doubt , it likes fuel.
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Michael Maurini



Joined: 11 Jan 2003
Posts: 286
Location: United States, Indiana, Indianapolis

PostPosted: Wed May 01, 2013 1:11 am    Post subject: Reply with quote

More fuel....more power
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Mike Maurini
317.270.8723
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www.RaceTechDevelopment.com
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My opinions and thoughts are my own, and are not shared by any organizations or companies that I may be associated with.
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John Savage



Joined: 30 Jan 2002
Posts: 1252
Location: United Kingdom (Great Britain), not USA state,

PostPosted: Wed May 01, 2013 10:29 am    Post subject: Re: Rok jetting Reply with quote

Rudy Pantaleon wrote:
Hello, does anyone have a jetting chart for the vortex rok with the dellorto 30 carb.


Rudy, read this: http://www.karting1.co.uk/The-Preparation-and-Jetting-of-the-Rotax-Max-Carb.pdf

Watch this: http://www.youtube.com/watch?v=sG5LMfqoitQ&list=UUJANVIZ3SCNnM62nEInXd6A&index=9

and then this: http://www.youtube.com/watch?v=Ye819VI0Vm8&list=UUJANVIZ3SCNnM62nEInXd6A&index=8

And then go to the track and create your own jetting chart for YOUR engine, carb and exhaust combination Wink
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Dellorto, Mikuni and Keihin Jetting & Kart Set-up Software

www.rotaxjetting.com www.kartsetupsoftware.com
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Rudy Pantaleon



Joined: 26 Apr 2003
Posts: 73
Location: United States, Florida, Miami

PostPosted: Wed May 01, 2013 7:34 pm    Post subject: Reply with quote

I wish I had the jet-tech software, but i use a mac and dont have the parallels.

Everyone has said that the engine likes fuel, but im not getting the revs i should be seeing with the factory recommendations, when im seeing better results is when i go down to a 148 main, 1st needle clip and washer on a k21, but im scared to be running it to lean.

Typical day at the track temp in the high 80's and low 90's at this time of year. Humidity at 50% pressure 1010 mbar
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