Yamaha EH63 Service Manual page 146

GENERAL SPECIFICATIONS
Engine oil quantity
1
Recommended oil brand
Available oil grade
2
Available viscosity index
3
Oil filter type
Lubrication system
4
Air filter system
Cooling system
5
Starting system
Stopping system
6
Rotating direction
7
Governor type
8
Electrical:
Ignition system
9
Ignition timing (3600 r/min)
Spark plug type
10
Spark plug gap
Solenoid valve resistance
* The power rating of the engine indicated in the SPECIFICATIONS is the net power output tested
on an engine model and measured at 3600 r/min.
Actual power output for an installed engine will vary depending on numerous factors, including the
operating speed of the engine, environmental conditions, and other variables.
NOTICE
Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal
engine parts.
1.55 L (1.64 US qt, 1.36 Imp.qt)
(including in oil filter)
YAMALUBE
API SE type or higher JASO MA or MB
10W-30 or 10W-40
Cartridge type
Forced pressure feeding type
Semi-wet/dry type
Air cooled
Starter motor
Misfire
Counterclockwise rotation (as seen from the output shaft
side)
Centrifugal weight system
TCI
BTDC 26.5 ± 2/3600 r/min
BPR5ES (NGK) (Except for EH64A)
BPR4EY (NGK) (EH64A)
0.7–0.8 mm (0.028–0.031 in) (Except for EH64A)
0.6–0.7 mm (0.024–0.028 in) (EH64A)
34.2–41.8  at 20 C (68 F)
7-2