DMT 2004 Digital Multimeter 91‑892647A01
6. Measure the resistance of the IAC with the DMT 2004 Digital Multimeter tool. The IAC is not polarity sensitive.
NOTE: The IAC resistance values are for reference only.
Meter Test Leads
Meter Scale Reading
Red Black
Right terminal pin Left terminal pin Auto 21.0–27.0 Ω
IAC Installation
1.
Apply clean engine oil to the O‑ring on the IAC.
2. Insert the IAC into the throttle assembly, and attach with two screws. Tighten the screws to the specified torque.
Description Nm lb‑in. lb‑ft
IAC mounting screws (2) 3.0 26.6 –
3. Attach the bypass hose to the IAC.
4.
Connect the IAC to the engine harness.
5.
Install the air box. Refer to Air Box Installation.
• Be certain to attach the crankcase breather hose and the bypass hose to the air box.
• Install the recoil starter assembly before tightening the top air box mounting screw.
a - IAC mounting screws (2)
b - Bypass hose
c - Engine harness connector
Service Procedures
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 3C-25
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