1999-2004 Mercury M2 Jet Drive 210/240 HP Service Manual

Complete service and repair procedures for Mercury M2 Jet Drive with 210 and 240 horsepower gasoline engines. Technical reference for precision maintenance and component overhaul specifications. Document 90-877837.

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Document Details

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Document Number / Seller:
25408 / Richard Miller
File Size:
12.99 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Inboard Engine (Sterndrive)
Last updated / verified
Mar 27, 2025

Models Covered & Key Technical Specifications

Mercury M2 Jet Drive 210/240 HP — 1999–2004 Manufacturer & Service Guide | M2 Jet Drive Technical Repository.

  • Certified Processing Speed: The engine displacement reaches 153.0 cu. in. (2507 cc) is designed for the V-6 cylinder, two-cycle, loop-charged Architecture.

  • General Mass Specs: Maximum horsepower delivers 210 hp (156.6 kW) and 240 hp (178.9 kW) at rated operating conditions representing peak output Framework.

  • Design Precision Specs: Cylinder bore diameter requires 3.501 in. (88.925 mm) standard measurement with maximum taper/out-of-round tolerance of 0.003 in. (0.076 mm) Norms.

  • Engineered Locking Torques: Flywheel nut requires 120 lb. ft. (162.7 N·m) is configured at crankshaft fastening application Protocol.

  • Verified Measurement Bounds: Fuel pressure at wide-open-throttle is measured at 8 PSI (55.2 kPa) maximum rating for carburetor fuel delivery Bounds.

  • Factory Cycle Rate: Idle RPM establishes 1000–1100 rpm minimum operational threshold for engine stability and performance Topology.

Professional Workshop Service Manual & Technical Specifications

Operational Factory Reference Documentation: Mercury M2 Jet Drive 210 HP & 240 HP - Precision Service Procedures for Gasoline Engines Diagnostic-Reference

Calibration-Scope: 1999-2004 Mercury Marine 210hp & 240hp models (Base, OptiMax, OptiMax Pro XS) // Model-Portfolio: Inboard Engine (Sterndrive) Systems & Jet Propulsion Logic // Calibration-Scope: 417-page comprehensive service and technical documentation.

Component Category Documentation Coverage Technical Depth
Ignition & Electrical Systems Capacitor discharge, CDM modules, trigger circuits, stator assemblies documented Complete specifications provided
Fuel Delivery & Injection Carburetor systems, pulse pumps, EFI architecture, pressure regulation documented Complete specifications provided
Powerhead & Engine Architecture Cylinder head assemblies, crankshaft alignment, piston specifications documented See Sections 4A-4B

The manual presents information on ignition system operation encompassing stator assemblies and trigger mechanisms, fuel system architecture documenting carburetor synchronization and injection control, and powerhead construction detailing cylinder bore specifications and crankshaft bearing configurations. Technical specifications are provided for the fuel system documenting torque specifications for the pump unit housing to ensure proper bolt assembly, along with detailed wiring diagrams for both carburetor and fuel injection variants. The document includes engine rebuild procedures documented for connecting rod removal and crankshaft installation, complemented by maintenance protocols covering cooling system flushing and oil injection operation. Factory specifications are documented for ignition timing adjustment at cranking speed and wide-open throttle, with electrical system troubleshooting procedures outlined for battery charging system diagnosis. Engine installation procedures are documented for mounting the powerhead to the jet pump drive housing, supported by component placement diagrams and assembly torque sequences.

This comprehensive reference covers the complete service spectrum for 1999-2004 Mercury Marine 210 and 240 horsepower inboard jet drive systems, encompassing electrical architecture, fuel management systems, and mechanical powerhead procedures required for professional marine service environments.

FAQ

What specifications are **essential** for testing parameters? keyboard_arrow_down

670 Marine Cranking Amps (MCA) or 520 Cold Cranking Amps (CCA) minimum battery rating is required, with a reserve capacity of at least 100 minutes for proper starter system operation and ignition reliability.

Check the **correct** diagnostic procedures for fuel system troubleshooting? keyboard_arrow_down

2 PSI check valve opening pressure is the specified minimum for preventing gasoline backflow into oil lines while maintaining system pressure integrity during fuel pump operation.

What does the **documented** fluid capacity requirements specify? keyboard_arrow_down

3 gallons (11.4 litres) is the oil tank capacity for Mercury Precision or Quicksilver Premium Plus NMMA Certified TC-W3, with approximately 6.6 hours of reserve capacity during normal operation.

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Reviews (2)

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New
The service manual was easy to download and packed with useful information. The diagrams really helped me understand the engine better. Highly recommend!
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I received the download link quickly via email, and the manual is incredibly detailed. It covers everything from safety to performance tuning. Very satisfied!