BMW R 51/3 Workshop Repair Manual page 103

Technical Data
Dynamo:
Model Noris L 45/60 L
Type
shunt dynamo with voltage regulator
Driven
directly by crankshaft
Rated voltage 6 volts
Maximum hot output
60 watts, 2200
t.
p. m.
Rated hot output 45 watts, 1800 r. p. m.
Ignition magneto:
Model
Noris MZ adlR
Rotor driven
directly by camshaft at half of crankshaft speed
Automatic timing control by centrifugal advance mechanism
Range of adjustment
30 crankshaft angle degrees
R 51/3 R 67 and R 6712
Spark advance 3<]0
+
2° before TOC
36°
+
2° before TOC
Spark retard
9° before TDC 6° before TOC
Contact breaker gap
.4 mm
Sparking plugs :
Bosch W 240 T1
*)
Electrode gqp of spark plugs .6 mm
=
.024"
BaHery:
6 volts, 7 ampere hours
Electrolyte
'specific gravity 1.280 (in the tropics 1.230)
Charging from an independent
12 to 14 hours using current of .7 amperes, battery
source of electricity fully charged with 3 x 2.7 volts
=
8.1 volts
L~ghtlng
equipment:
Headlamp
Bosch LE/MTA 160 x 2/13hecidlamp with Bilux lamp,
parking light, battery charge control light, neutral
light and built-in speedometer with concealed (inter- .
nal) illumination for dial .
Bilux lamp 6 volts, 35/35 watts with dip switch
Parking light 6 volts, 1.5 watts
Battery cha rge control lig ht
6 volts, 1,5 watts· .;
Neutral light
6 vqlts; 1.5 watts . . . .
Speedometer light 6 volts, .6 or
.1.2
watts
Taillight tubular bulb, 6volts
t
,5 watts
Electric horn
Bosch HO/FDF 611 horn
*)
or the following sparking plugs: lodgeHHN, Champioill1() S, Champion J2, KLG-F80.
Electrical Equipmtttnt Group
1
II