ROTAX MOJO MAX Challenge Technical ... - Rotaxmax.ch

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Version 39.2.9) Radiator coolant:As glycol coolants are prohibited, plain water without any additives has to beused.9.2.10) Exhaust system:a) Must be as supplied by ROTAX and cannot be modified except for thereplacement of the silencer absorption material and the use of threadedfasteners in place of the rivets for securing the silencer end cap.b) Standard exhaust socket must be used.c) Exhaust pipe with after muffler as shown in illustrations.Both versions (version welded on after muffler and version with aftermuffler fixed by 2 springs) are legal to be used.d) Diameter of hole of end cap of (pos. 6, illustration above): max. 21,0mme) Length of inlet cone: 592 mm +/-5 mm (measured on outside frombeginning of exhaust pipe until beginning of cylindrical part).page 28 of 53 RMC/RMCGF Technical Regulations 2013/Bul.1 Edition: 10.01.2013
f) Length of cylindrical part of exhaust pipe:125 mm +/-5 mm.g) Length of end cone: 225 mm, +/-5 mm.h) Outside diameter of 180° bent tube:41mm +1,5 mm/–1,0 mm (measured at beginning and end of bend).i) Just one piece of original isolating mat is allowed to be used.The original exhaust system (tuned pipe and silencer) may not bemodified, except for the addition of extra elements for further noisereduction.j) Welding at the exhaust system is only allowed in the case of a repair.k) Additional to the standard isolation mat a special steel isolation mat of thesquare dimension of 165 +10 mm is legal (not mandatory) to beassembled underneath the standard isolation mat as in followingillustration (ROTAX part no. of kit 297 983).Clamp (1) must be fitted at a distance of 18+/-2mm, measured from theend of the tube.Clamp (2) must be fitted at the end area of the steel isolation mat.10-12mm is a specification for assembly purpose only!Both clamps are mandatory.l) For measuring the exhaust gas temperature, it is allowed to weld on asocket on top of the exhaust, 50 mm from the ball joint.m) Usage of maximum 4 pieces of original ROTAX exhaust springs to fix theexhaust to the cylinder are allowed. (no safety wire allowed in exhaustflange area).n) Unpainted exhaust system as delivered in the first years of production isnot legal to be used.9.2.11) Noise emissions:a) Noise isolating mat (see illustration exhaust system) has to be replaced byan original ROTAX spare part, if the noise emission is exceeding 92 dB(A).b) Noise emission measuring procedure: the measuring place has to be atsection of the track where the engine is operated under full load and at arpm range of 11.000 to 12.000 rpm. The microphone has to be installed 1meter above the level of the track in a rectangular angle to the track. Thedistance between the microphone and the kart on the ideal line on thetrack has to be 7,5 meters. The kart has to be operated under full load atthe ideal line on the track.page 29 of 53 RMC/RMCGF Technical Regulations 2013/Bul.1 Edition: 10.01.2013
Page 1: APPROVEDROTAX MOJO MAX ChallengeTec
Page 4 and 5: 7) Safety of equipment:For RMCGF an
Page 6 and 7: The ROTAX authorized Distributor or
Page 8 and 9: ABNOTE: This check is just for refe
Page 10 and 11: g) Height of cylinder has to be 87
Page 12 and 13: The exhaust port may show partial m
Page 14 and 15: d) Crankshaft main bearing 6206 fro
Page 16 and 17: e) The ignition coil has to be fixe
Page 19: • Outer diameter of clutch drumDi
Page 22 and 23: • Top bore diameter 2,60 +/- 0,15
Page 24 and 25: • Angular bore: Plug gauge 0,60 m
Page 26 and 27: • Atomizer, diameter of cross bor
Page 30 and 31: 9.3) Technical Specification (withi
Page 32 and 33: f) Height of cylinder has to be 86,
Page 34: or signs of a CNC machining …or s
Page 37 and 38: 9.4) Technical Specification (outsi
Page 39 and 40: 9.4.3) Balance drive:a) Balance dri
Page 41 and 42: • Inner diameter of clutch drumTh
Page 43 and 44: 9.4.7) Intake silcener:a) Intake si
Page 45 and 46: • Top bore diameter 2,60 +/- 0,15
Page 47 and 48: PICTUR• Angular bore: Plug gauge
Page 49 and 50: • The two vent fittings must be c
Page 51 and 52: d) Diameter of hole of end cap of (
Page 53: page 53 of 53 RMC/RMCGF Technical R

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