12.3
12
Technical data R 850 C R 1200 C
Starter motor
Type Permanent-magnet motor with planetary gear
drive
Gear ratios Planetary gears 5.5 : 1
Power rating kW 1.1
Alternator
Type Three-phase alternating-current generator with
integrated all-electronic voltage regulator
Drive Poly-V belt
Gear ratios 1 : 1.5
Maximum output rating W/V 700/14
Maximum current at engine speed
4000 min
-1
A50
Nominal current at engine speed 1000 min
-1
A18
Max. operating speed min
-1
20 000
Spark plug
Bosch FR 6 DDC
Electrode gap mm (in) 0.8 (0.03)
Wear limit mm (in) 1.0 (0.04)
Thread metric M 14 x 1.25
Ignition
Ignition system Motronic (mapped characteristic control)
Ignition trigger Two magnetic gates (Hall-effect transmitters)
driven from crankshaft
Ignition timing °CS 0° … + 43° before OT
Static ignition timing °CS Adjustment at TDC
Ignition coil
Twin-spark coil
Resistance: Primary Ω ~0.5
between terminals 15 and 1
Secondary kΩ ~7.5
between terminals 4a and 4b
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