2-6
E
SPEC
MAINTENANCE SPECIFICATIONS
Item
Unit
Model
F4A/F4
TEST PROPELLER
Test propeller
Parts No.
YB-1630/90890-01630
Specific revolution
r/min
5,250~5,450
LOWER
Item
Unit
Model
F4A/F4
IGNITION SYSTEM
Ignition timing
Degree
BTDC 28~32
T.C.I. system output peak voltage
(W-B)
@ cranking (300 r/min) open
V
126
T.C.I. air gap
mm (in)
0.4~0.6 (0.016~0.023)
Spark plug gap
mm (in)
0.6~0.7 (0.024~0.028)
Spark plug cap resistance
(with resister type)
k
½
4.0~6.0
Ignitor ass’y resistance
Primary coil (W-B)
½
0.56~0.84
Secondary coil (W-Hi-tension cord)
k
½
11.60~17.40
ELECTRICAL