MoTeC PWC Plug-In ECU - Manual (Page 13)

6 Yamaha Installation
Cooling
When a PWC Plug-In ECU is fitted the engine power is increased. T
standard Yamaha cooling system might not be sufficient in its supply of
to the engine and over-heating can occur.
It is important to check if the cooling system is working adequately. The
maximum engine temperature should be 88 °C (190 F).
If your engine overheats the dash alarm will come on and the revs will be
limited to 3300 rpm.
Note: There are three separate engine temperature monitors on the Yamaha.
The engine temperature switch, mounted on the front right side of the
block, is used to control the dashboard alerts and RPM limiter
temperature of this switch is 88 °C and is not adjustable.
The engine temperature sensor, mounted on the rear right side of
will reduce the drive-by-wire throttle when engine temperature
105 °C.
A further precaution is controlled by the Full Throttle Timer. When the engine
uses full throttle for extended periods, the engine tuner can adjust two
compensation tables to reduce engine temperature. The fuel mixture can be
enriched using Fuel Comp 1 table and the ignition timing can be retarded
using Ignition Comp 2 table.
Tip: The logged data will be useful to check the engine temperature. See
Data Logging on how to access the logged data.
The optional installation of a cooling kit will help with engine cooling.
Power Control Strategy
The standard Yamaha WaveRunner uses an Immobiliser and Start Button to
power up the craft. If the Immobiliser is unlocked, pressing the Start Button on
the left handlebar will start and run the engine.
The installation of the PWC Plug-In ECU bypasses the Immobiliser
the PWC permanently unlocked. Otherwise it follows the same strateg
some provisions:
•
If the engine is not started or is stopped for a period longer than 30
seconds, the M400 Marine ECU turns off its own power. Power is not re
applied until the Start button is pressed again for an engine start.
•
When making tuning adjustments to the M400 Marine ECU
Manager software, an ECU reset may be required. In this case, power is
removed from the ECU and the CAN connection to the PC software is
halted. To re-connect, press the Start Button for a short time until the
engine has cranked, or for a longer time if you want the engine running.
MoTeC
In ECU is fitted the engine power is increased. The
n its supply of water
It is important to check if the cooling system is working adequately. The
If your engine overheats the dash alarm will come on and the revs will be
emperature monitors on the Yamaha.
front right side of the engine
is used to control the dashboard alerts and RPM limiter. The alarm
the rear right side of the block,
engine temperature exceeds
. When the engine
uses full throttle for extended periods, the engine tuner can adjust two
compensation tables to reduce engine temperature. The fuel mixture can be
can be retarded
The logged data will be useful to check the engine temperature. See
l installation of a cooling kit will help with engine cooling.
Yamaha WaveRunner uses an Immobiliser and Start Button to
. If the Immobiliser is unlocked, pressing the Start Button on
In ECU bypasses the Immobiliser rendering
follows the same strategy with
longer than 30
seconds, the M400 Marine ECU turns off its own power. Power is not re-
utton is pressed again for an engine start.
ustments to the M400 Marine ECU using ECU
Manager software, an ECU reset may be required. In this case, power is
removed from the ECU and the CAN connection to the PC software is
utton for a short time until the
ne has cranked, or for a longer time if you want the engine running.