Kawasaki STX-15F service manual Charging System, Magneto Output Voltage

ELECTRICAL SYSTEM 14-33

Charging System

Magneto Output Voltage

•Remove:

Seat (see Hull/Engine Hood chapter)

Air Filter with Duct (see Fuel System chapter)

•Disconnect the 3-pin stator coil leads connector [A].

•With the hand tester [A] check the magneto output (in circuit) according to the following table with the engine running at approximately 3 000 rpm.

WARNING

To avoid electrical shock, do not perform this test with the watercraft in the water.

CAUTION

Do not run the engine over 15 seconds without cool- ing water.

Magneto Output Voltage

Meter Setting	Connections		Standard Value
	Meter (+) to	Meter (–) to
250 V AC	White lead	White lead	48 ∼ 72 V

If the magneto output voltage is correct, check the regu- lator according to the regulator test procedure.

If the magneto output voltage is low, check the stator coil resistance with a multimeter according to the following table.

Stator Coil Resistance Test

Meter Setting	Connections		Standard Value
	Meter (+) to	Meter (–) to
R × 1 Ω	White lead	White lead	0.432 ∼ 0.648 Ω

If the coil has normal resistance, but the voltage check shows the charging system to be defective, then the permanent magnets in the flywheel have probably weak- ened, necessitation flywheel replacement.

Regulator/Rectifier Removal/Installation

•Remove the seat (see Hull/Engine Hood chapter).

•Unscrew the mounting bolts [A] and remove the regula- tor/rectifier [B].

•Disconnect the connector [C].