Since you’re new to the sport, I’d start with a visit to your local kart shop. It’s a good time of the year to get acquainted with the shop owner. Have him look at the motor and carb so you’ll have a dependable power plant to start with. With an older motor, you should concider the upgrade to the new style clutch. As far as tuning the motor, you will need some basic knowledge of the power valve and how to jet the carb. Below is a link to a tuning manul for a CRG.
And you should concider some software and a guage. Mychron gauges are common and you can download your data into Race Studio for analysis. Race Studio is free to download. At some point my wish to purchase jetting software. I’ve only used Jet-Tech and will recommend it.
Also you will need pen and paper. Take notes on weather and track conditions, plus chassis setups. Good luck and you might want to bring a buddy with you to the track.
http://www.crg-america.com/pdfs/CRG_Kart_Tuning_Manual.pdf
http://www.rotaxjetting.com/ (jetting swoftware)
