Suzuki Boulevard M50 User Manual

ELECTRICAL SYSTEM 9-9
Step 5
1) Measure the generator no-load voltage. (9-11)
Is the generator no-load voltage OK?
Step 6
1) Inspect the regulator/rectifier. (9-11)
Is the regulator/rectifier OK?
Step 7
1) Inspect wirings.
Is the wirings OK?
Battery overcharges
• Faulty regulator/rectifier
• Faulty battery
• Poor contact of generator lead wire coupler
INSPECTION
BATTERY CURRENT LEAKAGE
• Remove the seat. (8-3)
• Turn the ignition switch to the OFF position.
• Disconnect the battery - lead wire.
Measure the current between - battery terminal and the - bat-
tery lead wire using the multi circuit tester. If the reading
exceeds the specified value, leakage is evident.
 Battery current (leak): Under 1 mA
 09900-25008: Multi circuit tester set
 Tester knob indication: Current (, 20 mA)

When checking for excessive current leakage, remove the cou-
plers and connectors, one by one, so as to locate the position of
trouble.
YES Go to Step 6.
NO Faulty generator
YES Go to Step 7.
NO Faulty regulator/rectifier
YES Faulty battery
NO
• Short circuit of wire harness
• Poor contact of couplers
* Because the current leak might be large, turn the
tester to high range first to avoid tester damage.
* Do not turn the ignition switch to the “ON” position
when measuring current.
DCmA
Battery
SAMPLE

Suzuki Boulevard M50 Specifications

General

Compression Ratio	9.4:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Inverted telescopic, coil spring, oil damped
Front Tire	130/90-16M/C 67H, tubeless
Rear Tire	170/80-15M/C 77H, tubeless
Ground Clearance	140 mm (5.5 in)
Seat Height	700 mm (27.6 in)
Engine Type	4-stroke, liquid-cooled, V-twin
Bore x Stroke	83.0 mm x 74.4 mm
Rear Suspension	coil spring, oil damped
Front Brakes	Single hydraulic disc
Rear Brakes	Drum
Fuel Tank Capacity	15.5 L (4.1 US gal)
Wheelbase	1, 655 mm (65.2 in)