Engine Fails To Operate; Ignition System Malfunction; Low Oil Level Warning Activates - Yamaha 150 Owner's Manual

Trouble Recovery
7. Give a strong pull straight out to crank
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
65
or stopping.
ECM00380
CAUTION:
Follow this procedure only in an emer-
gency and just long enough to return to
port for repairs.
ZMU03466
1. CDI unit
2. Yellow cord
EMU29741

Low oil level warning activates

If the oil level is allowed to drop too low, the
red segment will appear on the oil level indi-
cator, the buzzer will sound, and engine
speed will be limited to about 2000 r/min. If
this happens, a reserve amount of oil can be
pumped from the remote oil tank to the en-
gine oil tank using the emergency switch.
EWM01050
Be sure to stop the engine before per-
forming this procedure.
ZMU03923
ECM00900
CAUTION:
If the emergency switch is held up too
G
long, too much oil will be pumped into
the engine oil tank, overflowing it. Re-
lease the switch when oil reaches the
upper level line on the engine oil tank.
Do not use this emergency procedure
G
WARNING
1
2
ZMU03924