IGNITION
90-857046R1 NOVEMBER 2001 Page 2A-11
RPM % Spark Cut-Out
6250 11%
6281 33%
6313 66%
6. Over Heat Protection: Limits engine RPM to 2000 if the engine temperature exceeds
192.2° F (89° C). The ECM will sound the over heat warning horn (a continuous tone)
and turn on the optional Over Heat Warning lamp. Over heat warning will subside if the
engine temperature drops below 183.2° F (84° C) and engine RPM is momentarily
dropped below 1000 RPM as a reset condition. The ECM incorporates a 20 second
warning system delay to compensate for a warm restart (heat soak) condition.
7. Low Oil Pressure Protection: Limits the engine RPM to 2000 if oil pressure drops below
2.25 +/– 0.75 psi. The ECM will sound the low oil pressure warning horn (intermittent
1 second on - 1 second off) and turn on the optional Low Oil Pressure Warning lamp.
Low oil pressure warning will reset by shutting the engine off and restarting at a normal
oil pressure. The ECM incorporates a 10 second warning system delay to allow engine
to achieve operating oil pressure.
NOTE: The ECM controls all timing operations. There are no timing adjustment required on
this engine.
Crank Position Sensor
Contains a permanent magnet and is positioned 0.030 ± 0.010″ (0.762 ± 0.254mm) from
the flywheel teeth. The timed passing of the flywheel teeth through the sensor’s magnetic
field enables the ECM to determine engine RPM and crankshaft angle.
Stator Assembly
a
b
a-S/N OG960499 and Below
b-S/N OG960500 and Up
The stator assembly located under the flywheel contains the Ignition, auto enrichener, and
battery charge coils. All of these coils make up the stator assembly.
As the flywheel permanent magnets pass the respective stator coil windings, an AC pulse
current is produced at each coil winding when magnet polarity changes. (South to North),
(North to South) etc.
To Next Page
Loading...
Need help?
General
