Engine Fails To Operate; Ignition System Malfunction - Yamaha 150F Owner's Manual

OFF
5. If equipped the choke knob, pull out it
when the engine is cold. After the engine
starts, gradually return the choke knob
to its home position as the engine warms
up.
6. Insert the knotted end of the emergency
starter rope into the notch in the flywheel
rotor and wind the rope several turns
around the flywheel clockwise.
7. Give a strong pull straight out to crank
ON START
ZMU01906
ZMU03921
ZMU03466
Trouble Recovery
and start the engine. Repeat if neces-
sary.
EMU29670

Engine fails to operate

EMU29691

Ignition system malfunction

If the battery voltage is low or in the unlikely
event of an ignition system malfunction, the
engine speed may become erratic or the en-
gine may stop. In such a situation, follow the
procedure below.
1. Remove the CDI unit cover or electrical
cover, if equipped.
2. Disconnect the yellow cord (emergency
circuit) of the CDI unit to return to port.
EWM00350
WARNING
When the yellow cord is disconnected,
the idle and low speeds are slightly high-
er than normal. Use care when starting off
or stopping.
ECM00380
CAUTION:
Follow this procedure only in an emer-
gency and just long enough to return to
port for repairs.
ZMU03923
68