Note: The list below includes 2008 Rulebook updates only. To obtain a copy of the current Rulebook please contact the IKF Office.

Section 102.2.1 Rule Change Enactment
Rules go into effect 30 days after being posted on the IKF Website.

2008 Rulebook updates:
08/07/2008: Section 115.2.1
08/07/2008: Sections 115.4.1, 115.4.2, 115.4.3, 115.4.4, 115.4.5
07/15/2008: Sections 509, 620.50, 622.5
06/24/2008: Sections 208.3, 252.1.5, 657.3
05/16/2008: Section 212.4
04/29/2008: Sections 105.1.6.3.5, 202.5.4.2.1, 275.5.3.2, 504.3
04/07/2008: Sections 716, 716.1, 717.16.3
04/03/2008: Section 404.3.1
03/25/2008: Sections 716, 717, 718
03/20/2008: Sections 301, 312.2
02/29/2008: Section 716.4
02/28/2008: Section 601.1
02/21/2008: Sections 509.5, 675.1, 675.2
02/20/2008: Sections 101.5.11, 212.4
02/08/2008: Section 275.5.2
02/07/2008: Sections 300.16, 300.17
02/05/2008: Sections 202.5.4.2.2, 601.1
02/05/2008: Section 659
01/31/2008: Sections 275.1.8.1, 701.5, 717.16, 717.22.2, 717.25.1
01/29/2008: Section 625
01/28/2008: Section 212.4
12/27/2007: Section 115.4.1
12/10/2007: Section 617 (2008 Rulebook also)

04/29/2008
Section
Add: At any reference to EGT sensors: Lambda sensors are approved.

02/20/2008
Section 101.5.11
Add: Directors that are unable to attend the Saturday Board Meeting, not attend the Sunday Board Meeting.

04/29/2008
Section 105.1.6.3.5 Neck Collars
Add before the last sentence: The Leatt-Brace Moto GPX is an acceptable neck brace.

08/07/2008
Section 115.2.1
Add: Any Junior in the Kid Kart division who has won two IKF Grand National wins in the Sprint division may run platinum or silver plates until they move out of the Kid Kart division.

08/07/2008
Section 115.4 Add the following:
Section 115.4.1 Current Experts in Road Race
Chris Abbas
Phillip Arscott
Terre Rothweiler
Mike Schorn
Aaron Stanford
Section 115.4.2 Current Experts in 2 Cycle Sprint
Joey Licata Jr.
Neil McCoy
Brian Phillipsen
Garrett Wright
Section 115.4.3 Current Experts in 4 Cycle Sprint
Gabriella Robles
Alex Schutte
Section 115.4.4 Current Experts in 2 Cycle Speedway
Chris Blattler
Kyle Heitz
Jeremy Hills
Bill Rieken
Steve Smith
Section 115.4.5 Current Experts in 4 Cycle Speedway
Cameron Koopman
Skylar Prochaska

12/27/2007
Section 115.4.1 Current Experts in Road Race
Add: Justin Bresee.

04/29/2008
Section 202.5.4.2.1
Minimum weight changed to 500 grams.

02/05/2008
Section 202.5.4.2.2
Change first sentence to read: The clutch will have no more than 4 friction surfaces and no less than 2.

06/24/2008
Section 208.3 Kid Kart Race Length
Delete Paragraph 5.
Add as Paragraph 5: Kid Kart laps are at the discretion of the Race Director, no qualifying session, heat, pre-final or final may exceed 8 miles.

05/16/2008
Section 212.4 Official Schedule
Day 3, August 1st:
Change: Junior 1 Heavy class weight to 235#
Change: Jr Super Sportsman Heavy class weight to 310#
Change: Kid Kart Heavy from Day 4, August 2nd to Day 3, August 1st.

02/20/2008
Section 212.4 Official Schedule
Day 4, August 2nd:
Change: Kid Kart Class Heavy weight to 160#
Day 5, August 3rd:
Delete: IKF TaG SM Class
Add: IAME Class

01/28/2008
Section 212.4 Official Schedule
Change to:
Day 1, July 30
Day 2, July 31
Day 3, August 1
Day 4, August 2
Day 5, August 3

06/24/2008
Section 252.1.5 Air Boxes
Add as Clarification: Section 252.1.5 states that all sprint shifter air boxes shall have a maximum of 3-29mm tubes. However, Section 603.1.4 indicates that engines up to 110cc displacement are limited to 2-23mm tubes. Since the hierarcy of our rules states that the higher numbered Section takes precedence, the following is how the rules for these classes should be enforced.
80cc Shifter classes maximum 2-23mm tubes
125cc (except ICC) Shifter classes maximum 3-29mm tubes
ICC any current or previously homologated CIK air box maximum 2-29mm tubes

01/31/2008
Section 275.1.8.1
Delete all.

02/08/2008
Section 275.5.2
Change: Vortex ROK Jr. to read Vortex ROK TT Jr.

04/29/2008
Section 275.5.3.2
Change: IAME Cup weight to 370#

02/07/2008
Section 300.16 TaG Heavy
Add: PRD 2008 @ 400#, Cheeta @ 400#, Vortex Rok TT @ 415#  all 16+

Clarification: The following engines were not renewed in the 2008-2010 TaG engine approval.These engines will be allowed for 2008 with a possible extension based on participation. Original PRD @ 400#, Vortex Rok @ 400#, Italsistem@ 415#  all 16+

02/07/2008
Section 300.17 TaG Light
Add: PRD 2008 @ 370#, Cheeta @ 370#, Vortex Rok TT @ 385#  all 16+

Clarification: The following engines were not renewed in the 2008-2010 TaG engine approval.These engines will be allowed for 2008 with a possible extension based on participation. Original PRD @ 370#, Vortex Rok @ 370#, Italsistem@ 385#  all 16+

03/20/2008
Section 301 Class 4 125cc/150cc Open/FKE II
Replace 80cc Gearbox Motors, Section 658 with Open Gearbox Motors. Delete Section 658.

03/20/2008
Section 312.2 Official Schedule
125cc/150cc Open/FKE II - Change from Day 2 to Day 3
TaG Enduro - Change from Day 4 to Day 2
Add to end of Day 1 Practice Day: Pro Class, CR125 Super Stock @ 400#
Pro Class is a Non-Duffy class.

04/03/2008
Section 404.3.1
Add: Burris Tires only to:
c. Junior Champ
d. Senior Champ.

04/29/2008
Section 504.3
Add: This representative is expected to have sufficient experience and tools to disassemble the engine/clutch as directed by the tech official.

07/15/2008
Section 509 Two Cycle Tech Tools
Remove: the word certified.

02/21/2008
Section 509.5
Add: Where metric dimensions (cm, mm) are specified in this document, conversion to SAE units (inches) is permissible for verification purposes. Where SAE dimensions (inches) are specified in these regulations, conversion to metric units (mm, cm) is permissible for verification purposes. The following conversion formulas shall be used: Divide millimeters (mm) by 25.4 to obtain inches. Divide centimeters (cm) by 2.54 to obtain inches. Multiply inches by 25.4 to obtain millimeters (mm). Multiply inches by 2.54 to obtain centimeters (cm).

02/28/2008
Section 601.1
Change first sentence to read: Effective January 1, 2009, leaded fuels may no longer be used at IKF sprint and speedway sanctioned events.

02/05/2008
Section 601.1
Add as first sentence: Effective January 1, 2009, leaded fuels may no longer be used at IKF sanctioned events.

12/10/2007
Section 617.11
Remove: Note: effective 1-1-95, max I.D.=.370", min length =1.600".

07/15/2008
Section 620.50 HPV Rules
Add: Unless otherwise specified, all parts are to be of the original manufacture and stock appearing.

07/15/2008
Section 622.5 Engine Additions
Add after 2nd sentence: Stock muffler only. Original manufacturer only. No welding repair.

01/29/2008
Section 625
Change to read: Homologated Engine Renewals for 2008 (per 624.13)

06/24/2008
Section 657.3
Add: Effective immediately, the 1997 CR125 cylinder is legal for IKF competition in Super Stock CR125. This change is in recognition of the fact that '99 cylinders are not currently available from Honda. This supply has been erratic for the past year or so and this rule change reflects the market situation. Note that on all Honda cylinders, some factory grinding, done prior to the Nikasil process is present. Some cylinders supplied by Honda and not modified may not be acceptable for IKF competition.

02/05/2008
Section 659
Add: Section 659 80 Laydown
Spirit and Intent: IF THESE PARAGRAPHS DO NOT SAY YOU CAN, YOU CAN’T!
659.1 Allowed Engine: Honda CR80
659.2 Stock Defined: All displacements will bear a tolerance that will be defined by specifications deemed as “OEM”, in specifications from said manufacturer. All post event technical inspection will rely on factory specifications and may be compared to known stock parts.
Neither the OEM engine no any of its auxiliary components maybe modified in any way, unless an exception and / or exclusion is specifically known in the rules. This includes the addition, deletion and / or omission of and / or adjustment to parts and /or materials.
Note: Adjustments to components that are specifically designed for that purpose shall not be construed to be a modification (i.e. Carburetor Jets, needles, slides, adjustment screws, Spark plugs, exhaust flange spacers, etc,}
659.2.1; “OEM” Defined: For purposes of defining allowable engine components, OEM will mean parts produced by the manufacturer.
659.3 Top end: Cylinder, head, and all components must be OEM CR80. There will be NO grinding, sandblasting, or any treatment of any port. There will be no addition or deletion of ports, and addition of material is prohibited. Pulse fittings allowed.
No “o-ringing “of head
Piston/Rings: OEM with stock finish on piston. Spiral locks allowed.
Head/ combustion chamber volume minimum 8.0 cc using LADD tool. Head Gasket must be stock OEM. Base gaskets of varying thickness maybe utilized to obtain the target 8.0ccv
Total base gasket shall be a minimum of 0.015 inches and maximum of 0.025 inches. 659.3.1 Cylinder may be honed, but may not be repaired (replated) if damaged. 659.4 Bottom End
Cases must be, stock CR80 with no Modification. Exception: to allow for larger drive gear.
Removal and plugging kick start allowed.
Rod and Crank must be stock CR80. Polishing is allowed on crankshaft journal only to achieve slip fit in bearings.
Bearings stock OEM, Exception Crank, main, rod, wristpin bearings non tech but must be same style dimension as stock. No ceramic bearings.
659.5 Intake System. Carburetor must be stock Keihin PE , Mikuni TM, or Keihin PWK with maximum bore 28.5mm. Float bowl type only, no pumper type carbs allowed. Carburetor air horn must be stock from air horn to face of slide.
Fuel pump. Must be pulse type only. Pump around systems allowed.
Intake/reed block: OEM CR80, no modification allowed.
Reeds OEM only
Catch containers and /or alternative plumbing are mandatory, to deal with potential carburetor overflow.
659.6 Ignition system: CDI box, stator, rotor, key, and flywheel and all wires and connectors must be stock CR80. Stator, trigger, and rotor must be installed in stock location. Repair with aftermarket connectors allowed.
659.7 Pipe And Silencer: Open. Must comply with current exhaust noise suppression requirements. Silencer “muffler can” must be a minimum of 2.5” O.D by a minimum of 8” long, excluding the end caps and fittings. For oval shaped silencer, the average of the wide and narrow sections will be used for the diameter measurement. The perforated noise suppression section of exhaust tubing must be a minimum of 6” in length.
659.8 Clutch and transmission: OEM CR80 part and gear ratios only. Aftermarket 3 rd gear is allowed. Clutch Basket assembly, Clutch Plates, friction discs, and springs, OEM
659.9 Other: OEM water pump must be retained without modification.

02/21/2008
Section 675.1
Add: Where discrepancies in tolerance specifications are found between like components on different engines, the more liberal tolerance will apply.

02/21/2008
Section 675.2
Add as last sentence: Other engines using bolt on inlet silencer adapters must also conform to Section 603.1.3.

01/31/2008
Section 701.5
Add as second sentence: Resistance in new style coil, part #379358, must be checked from the kill switch terminal to the spark plug connector.

04/07/2008
Section 716
After the Model...Type 8001/2 Add: Electric start Animal is legal in all Animal Classes.

04/07/2008
Section 716.1
Add, as third sentence: Shroud with cut out for electic starter must have B & S part 555702, Mike's Kart Stands part KS06FC, or the starter motor in place.

02/29/2008
Section 716.4
Change first sentence to read: PZ Model 22 Carburetor only.

03/25/2008
Section 716.21.1
Add at end of second paragraph: For 2008, Sox tool #AT 339 will be considered a guide for visual inspection. If the .864" end touches the intake valve guide, inspect the port carefully. If the port looks unaltered, the port will be considered legal.

01/31/2008
Section 717.16
Change: In first line, change "heat" to "head".

04/07/2008
Section 717.16.3
Add at the end: If gasket surface is machined, the section of the head directly over the piston must be machined to the same plane.

03/25/2008
Section 717.16.6.3
Add: Hard carbon may be removed from id of valve seat before seat diameter is checked.

01/31/2008
Section 717.22.2
Change to read: O.D. is .624" - .626".

01/31/2008
Section 717.25.1
Add: Place a comma after shim(s).

03/25/2008
Section 718.5
Add: Hard carbon may be removed from id of valve seat before seat diameter is checked.