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2020 OVKA Rulebook

Briggs LO206 Engine Rule set follow the 2020 Briggs LO206 United States Rule Set

2020 OVKA Tech Team
Head Tech Director - Ted Cradlebaugh
Assistant Tech Director - Ron Swift

Tech Corner Updates
March 1, 2020 - Highlighted and Clarified Rule Changes in 206 for 2020
Security Seals:
Effective January 30, 2020 the only security seals that are legal have either a single black tracer wire with a reflective hologram seal or a red/black tracer wire with an orange housing seal. Plain cable seals are not approved for competition.

Spark Plug:
2020 is a transition year for the approved spark plug. The timing below is required to allow the retail channel to stock the new plug and ensure that all competitors can comply with the new specification.a.Through March 31, 2020: Only the B&S unaltered factory spark plug part number #555737 Champion RC12YC is permitted. Spark plug must have the “Champion” and Briggs & Stratton logo as well as the “RC12YC” identification on the insulator.b.After March 31, 2020: Only the AutoLite AR3910X unaltered OEM spark plug (B&S part number#84005196)is permitted. Spark plug must have the “AutoLite” and “AR3910X”identification on the insulator.

Sportsman, Junior 1, Junior 2, Senior, and Masters Classes must run one of the following clutches:1.Inferno Racing by Hilliard: Fire, Flame, Blaze or Fury2. Max-Torque: Draggin Skin or SS3. Noram/Premier: Magnum, GE, Ultimate or Stinger** NOTE: Noram/Premier Stinger must be converted to stamped drum (Noram P/N01600715) by May 5, 2020 to be legal for competition. Sprocket conversion drums/kits manufactured by Inferno by Hilliard,Max-Torque or Noram may be used. Sprocket conversion drums/kits from other manufacturers are prohibited. Refer to Page 20-24 for diagrams/photos of approved clutchese.Clutch or sprocket conversion drum/kit must be used as shipped from the original manufacturer–Inferno by Hilliard, Max-Torque or Noram. Mixing of parts between clutch lines, manufacturers or removing parts (i.e.; grease guard, etc.) is prohibited. No alteration or machining to the clutch allowed except light sanding to shoe and drum mating surface for maintenance. Interchangeable drivers (i.e.; 15T, 16T, etc) and driver configuration (#35 or 219), driver clip/lock, clutch key, and crankshaft fastener kit are non-tech. OEM springs and weights MUST remain unmodified,OEM but are a racer‟s choice. Clutch coolers are not allowed. The use of aftermarket coatings is prohibited.

Exhaust Header:
Bolts or nuts must be safety wired to prohibit threads from backing out. If header bolts loosen during a race but the header remains attached to the head with two bolts/nuts, this is not grounds for disqualification.

Carburetor & Intake Manifold:
The fastener that attaches the carburetor to the intake manifold closest to the valve cover must remain stock as approved by the sanctioning body.

Rocker Cover Fasteners:
The rocker cover fastener closest to the carburetor must remain stock as approved by the sanctioning body.


April 3, 2019 - Change to two-cycle oil/fuel requirements.
Beginning race 4, the OVKA tech team will only be using 8 oz of Redline Two-Stroke Kart Oil or 4oz Burris Blend + 4oz Burris Castor per gallon as a baseline with the OVKA Spec fuel. Redline makes additional lines of 2 stroke oils, which will not be based lined. All racers are HIGHLY encouraged to change their Redline oils to Two-Stroke Kart Oil, and not use the other lines. After race #3 the Tech team will not baseline the spec fuel with the Redline Two-Stroke Oil (labeled without Kart). This change was voted on last night by the Board of Directors and approved.

Previous Year Rulebooks
2019 OVKA Rulebook
2018 OVKA Rulebook
2017 OVKA Rulebook
2016 OVKA Rulebook
2015 OVKA Rulebook
2014 OVKA Rulebook
2013 OVKA Rulebook
2012 OVKA Rulebook
2011 OVKA Rulebook
2010 OVKA Rulebook
2009 OVKA Rulebook
2008 OVKA Rulebook
2007 OVKA Rulebook
2006 OVKA Rulebook

Previous Tech Corner Updates
2017 Tech Updates
May 1, 2015 LO206 Tech Update
April 29, 2014 Clone Tech Update
April 28, 2014 Clone Class Update
January 25, 2014 Clone Class Update
October 3, 2013 Clone Class Update
July 13, 2013 TaG Class Update
March 22, 2013 TaG Class Update
August 15, 2012 TaG Class Update
2012 Clone 420cc Class Specs
2011 December WKA Update 12-2-11
TaG Rule Update 7-25-11
Yamaha Rookie Sportman Rule Update 6-9-11
Komet Senior Rule Update 6-9-11
2011 April Tech Corner with Pre-Tech Info
2011 WKA Helmet and Apparel Safety Updates
2010 June Tech Corner
2010 May Tech Corner
2010 April Tech Corner
2010 March Tech Corner - PreTech Checklist
2010 March Tech Corner
2010 March Tech Corner - PreTech Checklist Final
2010 February Tech Corner
2010 January Tech Corner
2010 Clone Rules
2010 Kid Kart Rules
2010 SBX Heavy Rules
2010 SBX Masters Rules
2010 August WKA Rule Updates
2010 April WKA Rule Updates
2010 WKA Gold Cup
2010 WKA Man Cup
2010 WKA TAG
2008 Februar Tech Corner
2007 March Tech Corner