Ignition Specifications - V6 Models; Ignition Specifications - V8 Models - Mercury V6 175 Diagnostic Manual

Ignition
Ignition Specifications ‑ V6 Models
Full throttle RPM range
Idle RPM (see NOTE)
Ignition type
Spark plug type
Spark plug gap
Spark plug hex size
Spark plug torque
Firing order
Ignition timing at idle
Ignition timing at WOT
PCM overspeed limiter
NOTE: The idle RPM set point may increase due to the low battery voltage ramp‑up strategy.
Ignition Specifications ‑ V8 Models
Full throttle RPM range
Idle RPM (see NOTE)
Ignition type
Spark plug type
Spark plug gap
Spark plug hex size
Spark plug torque
Firing order
Ignition timing at idle
Ignition timing at WOT
Special Tools
CDS G3 Interface Kit
Spark Gap Tester
Page 6A-2
Description
200 SeaPro
175 and 200
175 Pro XS
225
Description
SeaPro
250 and 300
Pro XS
CDS G3 License Key, Interface, Adapter, and Harness
66165
Provides a visual indication of spark/coil efficiency.
7513
© 2018 Mercury Marine
Specification
4600–5400
5000–5800
5400–6000
5200–6000
600
Digital inductive
NGK LKAR7C‑9
0.9 mm (0.035 in.)
14 mm
20 Nm (177 lb‑in.)
1‑2‑3‑4‑5‑6
Not adjustable; PCM controlled
(approximately 2° ATDC)
Not adjustable; PCM controlled
See chart
Specification
4800–5600
5200–6000
5600–6200
600
Digital inductive
NGK LKAR7C‑9
0.9 mm (0.035 in.)
14 mm
20 Nm (177 lb‑in.)
1‑2‑7‑3‑4‑5‑6‑8
Not adjustable; PCM controlled
(approximately 2° ATDC)
Not adjustable; PCM controlled
8M0138392
91‑850439T 1
90-8M0146617 eng JULY 2018