Editing Kart racing (section)

=== Engines ===
[[File:Shifter_Kart_Engine.jpg|thumb|Shifter kart engine]]
Racing karts mostly use small two-stroke or four-stroke engines; however, as of 2022, there has been small-scale adoption of [[electric motor]]s in racing karts.

* [[Four-stroke engine]]s can be standard air-cooled industrial based engines, sometimes with small modifications, developing from about 5 to 20&nbsp;hp. [[Briggs & Stratton]], Tecumseh, Kohler, Robin, [[Honda]], and Torini are manufacturers of such engines. They are used in both lower-level racing (particularly introductory junior categories) and fun kart applications. There are also more powerful four-stroke engines available from manufacturers like [[Yamaha Motor Company|Yamaha]], TKM, [[Swissauto]] or Aixro ([[Wankel engine]]) offering from 15&nbsp;hp up to 48&nbsp;hp. They run to and around 11,000 rpm, and are manufactured specifically for karting. Those are used in some National Championship classes like the two-strokes.
* [[Two-stroke engine|Two-stroke]] kart engines are developed and built by dedicated manufacturers.ROTAX, WTP, Comer, [[Italian American Motor Engineering|IAME]] (Parilla, Komet, Woltjer), TM, Vortex, Titan, REFO, Modena Engines, TKM, [[Yamaha Motor Company|Yamaha]] are manufacturers of such engines. These can develop from about 8&nbsp;hp for a single-cylinder 60 cc unit (MiniROK by Vortex) to over 90&nbsp;hp for a twin 250 cc.<ref name="Superkart">{{cite web |url=http://www.parcferme.com/content/view/2663/2/ |title=Superkart at Magny-Cours – 2007 |publisher=Parcferme.com |access-date=2011-08-08 |archive-date=14 April 2009 |archive-url=https://web.archive.org/web/20090414212308/http://www.parcferme.com/content/view/2663/2/ |url-status=dead }}</ref> Today, the most popular categories worldwide are those using the TaG 125 cc units. The recent 125 cc [[KF1]] engines are electronically limited at 16,000 rpm.<ref>''"Article 21 ; Specific Regulations for KF1 ; Engine speed limited to maximum 16,000 rpm."'' – [http://www.cikfia.com/web/karting/webkarting.nsf/C54F7EAD9380CB63C125707500537686/$FILE/WEB_RT%202010_full_version.pdf CIK-FIA 2010 Technical Regulations] {{webarchive|url=https://web.archive.org/web/20100330233508/http://www.cikfia.com/web/karting/webkarting.nsf/C54F7EAD9380CB63C125707500537686/$FILE/WEB_RT%202010_full_version.pdf |date=30 March 2010 }}</ref> Most are water-cooled today; however, previously air-cooled engines dominated the sport.
* While [[electric motor]]s have been used in low-performance amusement park karts for some time—particularly in indoor applications where fumes are a concern - higher-performance competitive racing karts are now becoming commercially available.  For instance, manufacturer Blue Shock Racing offers a range of electric karts for both junior and senior competitors<ref>{{Cite web |title=Electric Racing Karts |url=https://blueshockrace.com/electric-racing-karts/ |url-status=live |archive-url=https://web.archive.org/web/20220617120714/https://blueshockrace.com/electric-racing-karts/ |archive-date=2022-06-17 |access-date=2022-06-17 |website=Blue Shock Racing}}</ref> with performance comparable to combustion-powered karts, and has held race series for them.<ref>{{Cite web |title=Electric Kart Championships |url=https://blueshockrace.com/championships/ |url-status=live |archive-url=https://web.archive.org/web/20220617121023/https://blueshockrace.com/championships/ |archive-date=2022-06-17 |access-date=2022-06-17 |website=Blue Shock Racing}}</ref> Combustion kart engine maker [[Rotax]] also offers an electric kart motor and has held racing events for karts fitted with it.<ref>{{Cite web |title=Rotax E20 |url=https://www.rotax-kart.com/en/Racing/E-Racing/Project-E20 |url-status=live |archive-url=https://web.archive.org/web/20220617121615/https://www.rotax-kart.com/en/Racing/E-Racing/Project-E20 |archive-date=2022-06-17 |access-date=2022-06-17 |website=Rotax (corporate website)}}</ref>