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Mercury 20 EFI FourStroke Service Manual

Mercury 20 EFI FourStroke
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Lubricants, Sealants, Adhesives
Tube Ref No. Description Where Used Part No.
6
Dielectric Grease Oil pressure switch electrical connection 92-823506 1
9
Loctite® 567 PST Pipe
Sealant
Threads of the oil pressure switch 92-809822
Special Tools
CDS G3 Diagnostic Tool Kit 8M0114141
60575
Interfaces CDS G3 software to SmartCraft network.
NOTE: This kit includes download instructions and a license key.
CDS G3 Cable Kit 8M0137534
65167
Allows the use of the CDS G3 diagnostic tool on small EFI Fourstroke outboard
engines.
DMT 2004 Digital Multimeter 91‑892647A01
A
C O
M
m
A
V H z
mV
V
H z TEMP
m A
A
IG
IP
OFF
H z
TEMP
4516
Measures RPM on spark ignition (SI) engines, ohms, amperes, AC and DC
voltages; records maximums and minimums simultaneously, and accurately
reads in high RFI environments.
Flywheel Holding Tool 91‑ 52344
4738
Holds and/or turns the flywheel while making engine repairs, also used to torque
the flywheel or the engine coupler.
Ignition Specifications at 20 °C (68 °F)
Parameter Specification
Ignition type Computer‑controlled capacitor discharge ignition (CDI)
Spark plug NGK DCPR6E
Spark plug gap 0.9 mm (0.035 in.)
Ignition timing at idle 5° ± 5° BTDC
Ignition timing at WOT 28° BTDC
RPM overspeed
SeaPro models 5800 RPM
15/20 JCI models 6300 RPM
All other (10/15/20 hp) 6500 RPM
Ignition
Page 2A-2 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017

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Mercury 20 EFI FourStroke Specifications

General IconGeneral
BrandMercury
Model20 EFI FourStroke
CategoryEngine
LanguageEnglish

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