Owner manual

1-2 Technical data
Engine
Idling speed rpm 3000 - 3400
Maximum speed rpm 10000 - 10500
Clutch-in speed rpm 3500 - 4100
Compression pressure, standard kgf/cm
2
(psi) 8.5 (121)
Carburetor ZAMA C1U-K51
Type Diaphragm horizontal-draught
Venturi Size mm(in) 8.5 (0.335)
Throttle Bore mm(in) 12.7 (0.5)
Idle speed screw initial setting turn in 3 - 4
H needle initial setting turn back 1 3/4
L needle initial setting turn back 1 3/4
Test Pressure, minimum kgf/cm
2
(psi) 0.5 (7.0)
Metering lever height mm(in) 0.1 - 0.25 (0.004 - 0.010)
lower than diaphragm seat
Ignition system
Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum
secondary voltage at 1000 rpm kV 15
Secondary coil resistance kΩ 1.0 - 2.0
Pole shoe air gaps mm(in) 0.3 - 0.4 (0.012 - 0.016)
Ignition timing °BTDC 27
H needle: High speed needle.
L needle: Idle needle.
BTDC: Before top dead center.
3
HCR-1500
SERVICE INFORMATION