8-32 SERVICING INFORMATION
THERMOSTAT + RADIATOR + FAN + COOLANT
ELECTRICAL
Unit: mm (in)
ITEM STANDARD/SPECIFICATION LIMIT
Thermostat valve opening temper-
ature
73.5 – 76.5 °C
(164 – 170 °F)
—
Thermostat valve lift Over 6 mm (0.24 in) at 90°C (194 °F) —
Radiator cap valve opening pres-
sure
108 – 137 kPa
(1.1 – 1.4 kgf/cm², 15.6 – 19.9 psi)
—
Engine coolant temp. indicator light
switch operating temperature
ON→OFF Approx. 120 °C (248 °F) —
ON→OFF Approx. 113 °C (235 °F) —
Cooling fan thermo-switch operat-
ing temperature
ON→OFF Approx. 88 °C (190 °F) —
ON→OFF Approx. 82 °C (180 °F) —
Engine coolant type Use an anti-freeze/coolant compatible with alumi-
num radiator, mixed with distilled water only, at the
ratio of 50:50.
—
Engine coolant including reserve 1 200 ml (1.3/1.1 US/lmp qt) —
ITEM SPECIFICATION NOTE
Spark plug
Type
NGK: CR7E
DENSO: U22ESR-N
Gap
0.7 – 0.8
(0.028 – 0.031)
Spark performance Over 8 mm (0.3) at 1 atm.
Ignition coil resistance
Primary 0.1 – 1.0 Ω
Terminal –
Ground
Secondary 12 – 20 kΩ
Plug cap –
Terminal
Ignition coil primary peak voltage More than 130 V
+: B/W,
-: B
Generator coil resistance Pick-up 350 – 670 Ω G – BI
Signal 0.09 – 0.50 Ω W – B
Charging 0.1 – 1.5 Ω Br – Br
Pick-up coil peak voltage More than 2.0 V
+: G,
-:Bl
Generator no-load voltage
(When engine is cold)
More than 65 V (AC)
Generator Max. output Approx. 150 W at 5 000 r/min
Regulated voltage 14.0 – 15.5 V at 5 000 r/min
Starter relay resistance 3 – 6 Ω
Battery Type designation YTX9-BS
Capacity 12 V 28.8 kC (8 Ah)/10 HR
Fuze size 20 A