Tech Update – Highlighted and Clarified Rule Changes in 206 for 2020

March 1, 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.

Clutch:
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.