SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 88 / 377

FUEL
Fuel system
4-5
6P23H11
Checking the throttle valve operation
1. Remove the flywheel magnet cover and
intake silencer.
NOTE:
See the exploded diagram (4-12).
2. Push the throttle valve, and check that
the valve moves smoothly when the
engine start switch is turned to OFF.
3. Turn the engine start switch to ON.
4. Check that the throttle valves operate
smoothly when the remote control lever
is shifted from the fully closed position to
the fully open position.
5. Install the intake silencer and flywheel
magnet cover.
NOTE:
• To install the intake silencer, see “ Installing
the intake silencer. ”
• To check the accelerator position sensor,
see Chapter 8,
“ Checking the accelerator
position sensor circuit ” and “ Checking the
accelerator position sensor. ”
Checking the TPS
1. Connect a computer to the outboard
motor and use the YDIS to display
“ Throttle position sensor 1, ” “ Throttle
valve opening, ” and “ Throttle position
sensor 2. ”
NOTE:
• Be sure to check the accelerator position
sensor before checking the TPS.
• To connect and operate the YDIS, see
Chapter 9,
“ YDIS ” and the YDIS (version
1.23a or later) Instruction Manual.
2. Check that the accelerator lever
1
con-
tacts the fully closed stopper
2
when the
remote control lever is at the fully closed
position.
NOTE:
To adjust the throttle cable, see Chapter 3,
“ Adjusting the throttle cable. ”
3. Start the engine, warm it up, and then
turn it off.
S6P24130
S6P24140
2
1
S6P21030