Yamaha WaveRunner VXR VX1800A, Service Manual

Page: 28 / 318

Technical tips
1-23
RiDE system
Unlike previous systems with mechanical shifting and Q.S.T.S., the RiDE motor is driven through elec-
tric signals in order to conduct shifting and trim operations.
With electrical operation, conventional cables are not used. By using the RiDE lever and electric trim
switch unit incorporated into the left handlebar switch, shifting and trim operations are easy to control.
The number of parts has been reduced, and serviceability has improved.
The trim function drives the RiDE motor through the electric trim switch in order to move the nozzle.
The trim position is sent to the ECM in order to display the trim angle on the multifunction meter.
The shift function transfers the RiDE lever opening angle into electric signals and then delivers the sig-
nals to the ECM. The ECM controls the engine based on the RiDE lever signals, shift position, and en-
gine status, and sends a shift request to the RiDE motor.
When changing the shift, the reverse gate operates after the engine speed has dropped and the water
jet stream intensity has been reduced. This reduces the strain on the reverse gate and allows for
smooth shifting.
B
3
11
13
1
8 9
2
3
10
12
C
D
7
5
4
6
7
A
A. Q.S.T.S. models
B. RiDE models
C. Mechanical link
D. Electrical signal
1. Shift lever
2. Shift cable
3. Reverse gate
4. Q.S.T.S. selector
5. Q.S.T.S. cable
6. Q.S.T.S. converter
7. Jet thrust nozzle
8. RiDE lever
9. ECM
10. SCU
11. Shift rod
12. Electric trim switch
13. Trim rod