vent the intent. 657.3 Cylinder and top end: 1997-1999 cylinders are legal. no modification or machining of the cylinder is allowed such as porting, adding or deleting ports, decking of top or bottom of cylinder, or re-nikasil. cylinder mounting flanges may be spot faced in the area where the nut meets the flange only. some factory grinding is performed prior to the nikasil process on many cylinders. The Technical director reserves the right to disapprove any cylinder supplied by honda and not modified. some oeM cylinders may not be acceptable for ikf competition. cylinder length is 3.311 - 3.316. base gasket to be stock oeM 1999. 657.3.1 exceptions: stock power valves may be removed and after market plugs used, with no filing, welding, or modifying of the cylinder. The power valve actuator rod hole may be plugged. oeM power valve covers may be replaced with aftermarket plates. 657.3.2 Cylinder head: head must remain oeM with no modifications or machining of any kind. head must fit factory profile using the shockwave "stock cr125" profile gauge. removal of mounting boss and modifications to the water outlets, for the purpose of hose connection, are allowed. head gasket must be stock oeM. squish or deck height measurement through the spark plug hole will be a minimum of .050 thousandths, using .060 solder. This is not intended to be a minimum or maximum dimension. This dimension is a "quick" check to determine if any non-conforming modifications are present. 657.3.4 piston, ring, Wristpin: piston, ring, wristpin and upper rod bearing must be stock oeM. no modifications of any kind. lapping the bottom of the ring is permitted. 657.5 intake system: 657.5.3 manifold and reeds: intake manifold must be stock 1999 oeM cr125 (honda part number 16221-kZ4-a10 - most are marked kZM4) with no modifications. The reed cage must be 1999 cr125 (honda part number 14100-kZ4-j11) after mar- KARTER NEWS - FEBRUARY 2010 ket replacement reeds will be allowed, including mono reeds or stiffeners. This only allows reeds that may be installed without modification to the 1999 reed cage and does not permit multi-stage reeds. 657.6 ignition system: 657.6.2 flywheel: The stator and flywheel must be stock 1999 oeM. only repairs approved by the Technical director may be done to the wiring. stock flywheel key must remain in place with no modifications. The left hand lower limiting plate on the stator must be intact, with no modification. either the factory limiting plate or skusa limiting plate (available from skusa) may be used. Machined aluminum stator slots, underneath unmodified limiting plates, are allowed at this time. no modification to the hold down bolts is permitted. static timing must be controlled by the stock stator plate or the skusa plate. no modification to any of the components that change the static timing. 657.7 exhaust system: 657.7.1 exhaust: only the following exhausts are allowed. no modification of any kind is permitted. exhaust flange is open, but must meet oeM length dimensions. no spacers allowed between cylinder and exhaust flange except one oeM steel gasket. rlv r2 standard stinger (part# 6800) rlv r2 w/cross stinger (part# 6800/c) rlv r4 (part# 6830) rce T-3 competitors using either the #6800 or #6800/c pipes are allowed to reduce their minimum weight by 10 lbs. 657.7.2 silencer: exhaust silencer body shall be a minimum of 12 inches and a maximum of 14.5 inches in length. diameter will be at least 3 inches. factory produced silencers only, no modifications allowed. cHanGE: 675 tag engine package specifications Chart (Add to list) parilla leopard My09 specifications same as parilla leopard.

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Membership Information: International Kart federation 1609 s. Grove ave., suite 105 ontario, Ca 91761, 909-923-4999 www.ikfkarting.com