ENGINE MONITORING
IMPORTANT: Your outboard must be equipped
with the System Check® (or equivalent) engine
monitor. Operating your outboard without the Sys-
tem Check (or equivalent) engine monitor will void
your warranty for failures related to the functions
monitored on your engine.
When you turn the key switch ON, the System
Check engine monitor horn performs a self-test by
sounding a 1/2-second beep. The gauge self-tests
by turning the warning lights on, then off in se-
quence. During engine start-up, pause with the key
switch in the ON position to observe the horn and
gauge perform the self-test. If the self-test does not
happen as stated, see your DEALER.
The System Check engine monitor alerts the oper-
ator with a 10-second beep of the horn and a warn-
ing light on the gauge when certain engine
problems occur. The appropriate warning light
will stay on until the key switch is turned OFF.
If the engine management module (EMM) senses
that the problem could cause permanent engine
damage, it will also limit engine speed to 3000 mal operation. Serious engine damage can occur
RPM. This additional protection feature is referred
to as S.L.O.W.™ If the engine was running faster
than 3000 RPM when the S.L.O.W. system activat-
ed, it will shake noticeably.
1
2
1.
2.
System Check Gauge
System Check Gauge with Tachometer
"NO OIL"
The engine’s oil pressure is too low to continue nor-
quickly. The EMM will limit the engine speed to
3000 RPM.
Causes of low oil pressure can include:
Insufficient oil in the crankcase.
Air in the system causing oil to foam.
•
•
CAUTION
• Malfunction of oil delivery components.
Blockage of oil system components.
•
In the S.L.O.W. mode, the engine speed is
Under certain conditions, the
To RESET the S.L.O.W. protection system – Slow
the engine to 800 RPM or shut it OFF.
Return to harbor if you cannot restore adequate oil
pressure. For more information about evaluating
low oil pressure, refer to Low Oil Pressure Warn-
ing.
limited.
engine’s limited speed may reduce maneu-
verability of your boat.
If the S.L.O.W. mode is activated and you
are unable to correct the problem, seek
assistance and/or return to safe harbor.
Serious engine damage, engine shutoff,
and/or reduced maneuverability may be
imminent.
"WATER TEMP" or HOT
The engine is overheating. Serious engine damage
can occur quickly.
If the engine is overheating, it will also activate
S.L.O.W. and limit engine speed to 3000 RPM.
IMPORTANT: Refer immediately to Engine Over-
heating.
Engine Monitoring - 17
| Categories | BRP Brand Manuals, Johnson 4-Stroke Manuals, Johnson Brand Manuals, Johnson Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual. Marine Operator's Engine Parts Boating Guide in PDF |
| Tags | Johnson 60 hp, Johnson PL4, Johnson70 hp |
| Model Year | 2004 |
| Download File |
|
| Document File Type | |
| Publisher | johnson.com |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated 2004 Johnson 60 70 hp PL4 4-Stroke Outboard Owners Manual 3.0 out of 3.0 based on 1 product reviews. A god and reliable fine little engine