Electrical Service Information; Electrical Specification; Electrical Torque Values - Honda TRX450R Service Manual

ELECTRICAL ('04-'05)
SERVICE INFORMATION
GENERAL
• When servicing the ignition system, always follow the steps in the troubleshooting sequence on page 20-5.
• The ignition timing cannot be adjusted since the Ignition Control Module (ICM) is factory preset.
• The ICM may be damaged if dropped. Also, if the connector is disconnected when current is flowing, the excessive volt-
age may damage the ICM.
• A faulty ignition system is often related to poor connections. Check those connections before proceeding.
• Use a spark plug of the correct heat range. Using a spark plug with an incorrect heat range can damage the engine.
• Use an electric heating element to heat the water/coolant mixture for the engine coolant temperature (ECT) sensor
inspection. Keep all flammable materials away from the electric heating element. Wear protective clothing, insulated
gloves and eye protection.
• A continuity test can be made with the switches installed on the vehicle.
• The following color codes are used throughout this section.
Bu:
Bl:
Br:
Blue
Black
Brown
G: Green
Gr: Gray
Lb: Light Blue
Lg: Light Green
0: Orange
P: Pink
R:Red
W: White
Y: Yellow
SPECIFICATION
ITEM
Alternator
Spark plug
Capacity
Charging coil resistance (20°C/68°F)
Standard
For extended high speed riding
Spark plug gap
Ignition coil peak voltage
Exciter coil peak voltage High
Low
Ignition pulse generator peak voltage
Ignition timing ("F" mark)
Bulb Headlight
Taillight
Coolant temperature indicator
Carburetor heater resistance (20xC/68xF)
Throttle position sensor resistance (20°C/68°F)
ECT sensor resistance at80°C(176°F)
at120°C(248°F)
SPECIFICATIONS
214W/5,000rpm
0 . 1 - 1.0 J2
IFR8H11 (NGK)
VK24PRZ11 (DENSO)
IFR9H11 (NGK)
VK27PRZ11 (DENSO)
1.0 - 1.1 mm (0.039 - 0.043 in)
100 V minimum
80 V minimum
30 V minimum
0.7 V minimum
12°BTDCatidle
1 2 V - 3 0 W / 3 0 W x 2
LED
12V-3.4W
1 3 - 1 5 Q
4 - 6 k£i
47.5 - 56.8 Q
14.9-17.3 n
TORQUE VALUES
Spark plug
Engine coolant temperature (ECT) sensor
Timing hole cap
Flywheel nut
Ignition pulse generator bolt
Alternator stator bolt
23 N-m (2.3 kgfm, 17 Ibfft)
9.8 N-m (1.0 kgfm, 7 Ibfft)
9.8 N-m (1.0 kgfm, 7 Ibfft)
74 N-m (7.5 kgfm, 54 Ibfft)
5 N-m (0.5 kgfm, 3.6 Ibfft)
9.8 N-m (1.0 kgfm, 7 Ibfft)
Apply sealant to the threads.
Apply grease to the threads and
seating surface.
Apply oil to the threads and seating
surface.
20-3