The national Solo rule book has two junior kart classes, FJA for kids age 12-18 and FJB for 8-12 year olds. Please see the general waiver and minor waiver forms. They Must be printed in COLOR!! Minor waivers can/should be filled out before attending the events.
125/80cc shifter karts and anyone over 18 must run in the F125 class. See Appendix G from the rule book which talks about general kart topics including the F125 and Formula Jr rules.
8-11 year old Junior drivers using the World Formula engine in FJB will be required to use a carburetor restrictor. Due to member and SEB feedback it was determined that the WF engine at 13hp was a little too fast for the younger drivers (See May 2005 Fastrack). To obtain a restrictor plate contact Doug Gill at the National Office.
http://www.badgerkartclub.com/ = local Sprint kart club that races in Dousman, WI. Lot's of info including classified ads.
http://www.4cycle.com/ = Brigg's info on 5 hp Raptors, 7+ hp Animals and the newer World Formula motor.
http://www.ekartingnews.com/ = general info plus classified's.
http://www.worldkarting.com/ = WKA info
The F125 email list on YahooGroups is a good place to ask questions about Solo karting. You can sign up using the link below...
For the Formula Junior crowd see below...