54
PH3300i SM, Rev. 2017-01-20
Cable from
Starter Relay
Starter
Motor
Fig. 56
5.6 Starter Relay
The starter relay is bolted to the chassis
next to the voltage regulator, behind the
inverter, and beneath the recoil starter, as
shown in (Fig. 54). Before beginning to
test the starter relay, make sure the
starting battery is fully charged and the
terminal connections are clean and tight
(section 3.2.1). Follow the 5 steps below
to gain access to the starter relay. The
starter relay can be tested on or off the
generator.
1. Follow steps 1-7 in (section 5.1.1) for
removing the carburetor.
2. After conducting the starter relay
tests, re-assembly using the steps in the reverse order.
5.6.1 Testing Starter Relay on Generator
1. First verify that the starter relay has good chassis ground. The relay body is grounded
through its mounting bolts. Make sure the mounting bolts have good electrical contact with
the chassis. It may be necessary to remove the paint around the mounting hole to
accomplish this.
2. Verify that there is 12V positive (battery voltage) at the battery terminal of the starter relay
(Fig. 55). If not, clean battery connections or repair wiring as necessary to restore battery
power to the battery terminal. Verify that there is no continuity between the battery and
starter motor terminals of the starter relay.
3. Turn the ignition key to the START position. Verify that there is 12V (battery voltage) being
supplied to the spade terminal marked Start Wire from Ignition Switch in (Fig. 55). If there is,
the relay should make a single clicking sound, there should then be continuity between the
battery and starter motor terminals of the starter relay, and the starter is turning, the relay is
good.
4. If the ignition switch failed to supply 12V (battery voltage) to the relay then test the ignition
switch for the cause of the problem (section 4.4.3) and continue this test using a jumper wire.
Connect the jumper wire from the 12V positive terminal of the battery to the spade terminal of
the relay (from step 3). The relay should click, there should be continuity between the battery
and starter motor terminals, and the starter should be turning. If there is no continuity
between the battery and starter terminals, the relay needs to be replaced.
5. If there is continuity between the terminals but the starter fails to turn, check the wire between
the relay and the starter (Fig. 56) for breaks, shorts or dirty/loose connections. Repair as
necessary. If power is being supplied by the relay to the starter but the starter fails to operate
properly see (section 5.5) for starter service.
Starter
Relay
Fig. 54
Starter
motor
Terminal
Battery
Terminal
Start Wire
from
Ignition
Switch
Chassis
Ground
Fig. 55
