Operator`s Manual RM1
Seite/page 128/132 ROTAX KART RM1 Ausgabe/Edition 01/2006
Engine has low compression Conduct tear-down inspection
Carburetor jetting too lean Optimize carburetor jetting
Insufficient fuel supply to carburetor Check fuel supply to carburetor
Engine has performance loss at lower
r.p.m.--rang
Fuel sieve in carburetor / in-line-fuel filter is
clogged
Clean fuel sieve / replace fule filter
Engine does not reach max. speed of
13.800 r.p.m.
Carburetor jetting not optimum Optimize carburetor jetting
Insufficient contact between the
connections of battery and wiring harness
Establish perfect contact
Gap at shift contact too small Adjust gap accordingly
Jetting of carburettor is too lean Optimize carburettor jetting
Wrong spark plug gap Adjust spark plug gap to 0,4 – 0,6mm /
0,015 – 0,024 in
Battery voltage to low Charge battery
Grounding of engine damaget or loose Tighten or repair grounding
Engine misfires during driving
After muffler isolating mat burned away Replace isolating mat
Inadequate amount of coolant in the cooling
system
Replenish coolant
Inactive coolant circuit Conduct tear-down inspection
Coolant emerges at leakage bor at
crankcase
Conduct tear-down inspection
Engine overheats
Cooling fins of radiator dirty Clean radiator
Loose engine attatchment on frame Check engine attatchment and re-tighten as
required
Engine vibrates excessivly
Balance gear set incorrectly Correct adjutment
Centrifugal clutch is slipping at speeds
over 6.000 r.p.m.
Friction lining worn Renew all 3 flyweights
Clutch spring broken Renew all 3 clutch springs Centrifugal clutch does not release at
idle speed of engine
Wrong oil-quality in the gearbox Replace oil with recommended quality
Excessive noise emission from exhaust
system
Damping material in the after-muffler worn Renew damping material
4x bushings inside the overload clutch worn
out
Replace bushings Overload clutch
4x hex screw not torquet correctly Torque hex screw with 10Nm
Thrust washer of overload clutch worn Replace thrust washers Overload clutch at clutch drum
Hex. nut not torquet correctly Torque hex nut accordingly
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