Pwc operational differences, Ecu operation, Drive by wire throttle – MoTeC PWC Plug-In ECU User Manual
Page 12: Instrument cluster operation, Motec yamaha installation

MoTeC
Yamaha Installation
PWC Operational Differences
The PWC Plug-In ECU closely mimics the standard OEM operation.
MoTeC would like to draw your attention to some operational differences
when a PWC Plug-In ECU is installed.
ECU Operation
The M400 Marine ECU engine control functionality is the same as the
standard factory ECU; all normal operations of the PWC are possible, with the
exception of No Wake Mode and Cruise Control.
Drive by Wire Throttle
All Yamaha WaveRunner models are fitted with a Drive by Wire
(Electronic Throttle). This is a safety related device. If it is not functioning
correctly contact your MoTeC dealer for further advice.
Warning:
Never alter any of the Electronic Throttle settings in the ECU. Incorrect
operation can potentially be dangerous and result in serious injury.
Instrument Cluster Operation
The M400 Marine ECU will control the Yamaha instrument cluster
the original factory dash operation.
The ECU controls the dash via the KTC (K-Line to CAN) data
KTC receives CAN messages from the ECU, and then transmits K
messages to the instrument cluster.
The fixed CAN address and the CAN messages custom data set are
in the Base Map and should not be changed.
To prevent engine damage the following dash alarms and rev limits
provided:
Sensor
Value
Dash alarm
Engine Temperature
approx. 88
°C (190 F) yes
Muffler Temperature
96
°C (205 F)
yes
Oil Pressure
None
yes
Note: These alarms and rev limits are similar to the factory settings.
5
the standard OEM operation. However,
some operational differences
ECU engine control functionality is the same as the
are possible, with the
All Yamaha WaveRunner models are fitted with a Drive by Wire throttle
is a safety related device. If it is not functioning
onic Throttle settings in the ECU. Incorrect
can potentially be dangerous and result in serious injury.
instrument clusters and mimic
Line to CAN) data adaptor; the
, and then transmits K-Line
custom data set are provided
dash alarms and rev limits are
Dash alarm
Rev Limit
3300 rpm
None
4500 rpm
These alarms and rev limits are similar to the factory settings.