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Technical data
Engine Type
Bore/Stroke
Displacement
Performance ( max.)
FR 125 MAX
FR 125 Junior MAX
Torque (max.)
FR 125 MAX
FR 125 Junior MAX
Idle speed
Speed limit
FR 125 MAX
FR 125 Junior MAX
Ignition unit
Spark plug
Electrode gap
Fuel
RON (min.)
Cooling system
Flowrate of the coolant pump
Coolant mixture
Coolant quantity
Engine lubrication system
Fuel mixing ratio
Lubrication of the balance shaft drive
Oil quantity for lubrication of balance shaft drive
Clutch
Clutch engagement speed
Power transmission from centrifugal clutch to the
rear axle of the kart
Chain dimension
Number of teeth of the drive sprocket
Weight (dry)
Table 1
Page 7
Repair Manual FR 125 MAX and FR 125 Junior MAX
FR 125 MAX
FR 125 Junior MAX
54,0 mm / 54,5 mm
3
125,0 cm
21 kW at 11.500 rpm
15 kW at 8.500 rpm
21 Nm at 8.750 rpm
17 Nm at 8.500 rpm
1.500 rpm
13.500 rpm (at operation on the track, under load)
12.200 rpm (at operation on the track, under load)
ATTENTION: Do not operate the engine without
load!
Breakerless, digital battery ignition, DENSO
NGK BR10EG, M14x1,25 or
DENSO IW31, M14x1,25
0,5 - 0,6 mm (NGK)
0,6 - 0,7 mm (DENSO)
Premium fuel, unleaded
95 octan
Liquid cooled, cooling circuit by integrated coolant
pump
22 l / min. at 11.000 rpm.
50% Antifreeze (al - compatible)
50% Water (distilled)
0,6 l
Mixture lubrication, super 2-stroke oil
1:50 (2% oil)
Motoroil SAE 15W- 40
0,05 l ( = 50 ml)
Centrifugal clutch, dry
Approx, 4000 rpm
Roller chain
7,75 x 4,6 x 4,5
11, 12, 13 or 14 teeth
Approx. 12 kg without silencer, carburetor, fuel
pump, radiator, muffler and battery
Edition 11/2000
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