Honda CRF450X 2005 User Manual

BATTERY/CHARGING SYSTEM
TROUBLESHOOTING
BATTERY IS DAMAGED OR WEAK
1.
SA TTERY TEST
Remove the battery (page 17-6),
Check the battery cond ition using the recommended batte ry tester.
RECOMMENDED BATTERY TESTER:
Micro 404XL (U .S.A. only), BM·210 or equivalent
Is the battBry in good condition?
NO - Faulty battery.
YES - GO TO S TEP 2.
2. CURRENT LEAKAGE TEST
Install the battery (page 17-6).
Check the b attery curr ent l eakage test (l eak t es t; page 17-7 1,
Is the current leakage below 0.1 rnA?
YES - GO TO S TE P 4.
NO - GO TO STEP 3.
3. CURRENT LEAKAGE TEST WITHOUT REGULATOR/ RECTIFIER CONNECTED
Disconnect the regulator/rectifier connector and recheck the battery current leakage.
Is the current leakage below O. 1 rnA?
YES - Faulty regulator/rectifier.
NO - Shorted wire ha rn ess.
4. ALTERNATOR CHARGING COil INSPECTION
Check the al ternator charging coil !page 17 -8).
Check for contin u ity between Yellow terminal and Ground, White termi nal and Gr ound.
Is there continuity ?
NO - Faulty charging coil.
YES - GO TO S TE P 5.
5. CHARGING VOLTAGE INSPECTION
Measure and record the banery voltage using a digital mul t ime ter !page 17-6).
Start the en
gi n e.
Measure the charging voltage (page 17-7).
Compare the measurements to the results of the fo ll owing calculation.
STANDARD:
Measured BV < Measured CV < 15.5 V
• BV = Batt ery Voltage
• CV = Charging Voltage
Is the mea s ur ed charging voltage within th8 standard voltag87
YES - Faulty battery.
NO - GO TO STEP 6.
6. REGULATOR/RECTIFIER SYSTEM INSPECTION
Check the voltage and resistance at the regulator/rectifier connector (page 17 -8).
Are the re sult of checked voltagB and resistan ce correct ?
YES - Faulty regulator /rectifier.
NO _ . Open ci rcuit in related wire
• Loose or poor contacts of related terminal
• Sho rt ed wire harness
17-5

Honda CRF450X 2005 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Valve Train	Unicam, four-valve
Transmission	Wide-ratio five-speed
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	110/100-18
Wheelbase	58.3 inches
Seat Height	37.6 inches
Fuel Capacity	1.9 gallons
Ignition	Solid-state CD with electronic advance
Final Drive	520 O-ring-sealed chain
Front Suspension	47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.4 inches travel
Induction	Keihin 40mm flat-slide carburetor