TOHATSU BFT115A Service Manual page 72

MAINTENANCE
ADJUSTMENT
Set the outboard motor gear case in a test tank filled
with water.
Start the engine.
Disconnect the 2P connector (1) from the IAC valve (2).
The MIL (3) should come ON and the warning buzzer
should sound (intermittent sound: long beep).
Wait until the engine speed stabilizes, and then check
the idle speed.
If the idle speed is out of specification, adjust by turning
the idle adjusting screw (1) in or out.
BASE IDLE SPEED (AT NEUTRAL):
575 ± 30 min
connected)
After adjustment, stop the engine and apply Nippon
Paint Uni-pack 200 or equivalent to the entire surface of
the idle adjusting screw (1) head.
Connect the IAC valve 2P connector.
Clear the DTC (page 5-6).
Start the engine. Wait until the engine speed stabilizes
under no load, and recheck the idle speed.
SPECIFIED IDLE SPEED (AT NEUTRAL):
750 ± 50 min
If the idle speed is out of specification, inspect and
troubleshoot the idle control system (page 4-7).
3-14
-1 (rpm) (with IAC valve connector dis-
-1 (rpm)
(2)
(1)
(1)
(3)
(1)
Apply here.