2007 Johnson J2R4SUC 2.5 HP 4-Stroke Outboard Motor Service Manual (P/N 5007217)

This BRP US Inc. service manual (P/N 5007217, 2006 copyright) covers the 2007 Johnson 2.5 HP 4-Stroke J2R4SUC with a 15-inch shaft, rope start, and tiller steering.

Search and diagram detail: Service text is searchable, with chapter and subsection bookmarks. Cover lettering and some labels inside diagrams are outside the text layer; small circuit and wire-color labels are easier to read when enlarged.

• Powerhead repair: Compression testing, cylinder-head service, crankcase disassembly, piston and connecting-rod inspection, camshaft timing, and reassembly with inspection limits.

• Fuel system: Carburetor rebuilding, float-height checks, throttle adjustment, fuel-tank and fuel-cock inspection, and leakage checks after installation.

• Ignition diagnosis: Hard-start troubleshooting chart, igniter and spark-plug-cap resistance tests, emergency stop switch checks, ignition timing, and wiring diagrams.

• Gearcase repair: Leak testing, shaft and seal service, forward-gear and pinion shimming, backlash adjustment, and propeller-shaft thrust-play measurement.

• Cooling and lubrication: Water-pump impeller replacement, thermostat testing, oil-pump inspection, and diagrams of the cooling and lubrication systems.

• Midsection and manual starter: Swivel bracket, clamp bracket, tiller handle, and driveshaft-housing service, plus recoil starter disassembly, inspection, and reassembly.

BRP wrote this manual for qualified, factory-trained technicians already familiar with Evinrude/Johnson special tools.

Engine Systems and Maintenance

The single-cylinder OHV engine sections cover valve and valve-guide inspection, piston-ring identification, connecting-rod oil-clearance checks, and crankshaft runout. Camshaft timing marks and cylinder-head and crankcase torque-sequence diagrams support powerhead assembly.

Compression-test readings are presented as diagnostic guidelines rather than absolute service limits. The inspection tables distinguish standard dimensions from wear limits for internal components.

Maintenance coverage includes the inspection schedule, valve-clearance adjustment, corrosion protection, storage, and pre-season service. Submerged-engine procedures distinguish recovery after the engine was running or stopped, with additional guidance for saltwater exposure.

The valve-clearance section warns that turning the crankshaft in the wrong direction can damage the water-pump impeller.

Carburetor and Fuel-Tank Service

Carburetor settings and float levels are supported by jet, nozzle, needle-valve, and float inspection procedures. Fuel-tank service covers the fuel cock and filter, tank-cap vent operation, and leakage inspection.

The Fuel Hose Routing drawing shows the tank, fuel cock, fuel hose, and breather hose. Marine fuel-system work involves highly flammable gasoline; follow the factory fuel-handling and ventilation precautions before service.

Ignition Troubleshooting and Wiring

The hard-start flowchart helps distinguish spark-plug, stop-switch, air-gap, igniter, and plug-cap faults before component replacement. It also directs the technician toward other systems when the ignition checks pass.

The transistorized ignition circuit is explained alongside the Wiring Diagram and Wire Routing drawings. These show the relationship between the flywheel magneto, igniter unit, spark plug, and emergency stop switch.

Gearcase Setup and Cooling Service

The gearcase section pairs backlash and thrust-play checks with shim and washer selection. Tooth Contact Pattern illustrations show correct and incorrect gear engagement; the manual warns that incorrect toe contact can chip the forward and pinion gears.

Water-pump repair covers the impeller, sleeve, housing, seals, and O-ring. Thermostat inspection includes an opening-temperature test, while the cooling-system diagram traces water through the powerhead and exhaust.

Service Charts, Specifications, and Tools

Exploded-view service charts identify components and assembly positions. The introduction calls for a separate Parts Catalog for replacement-part numbers.

Dedicated fastener torque charts sit alongside fluid-capacity data, wear limits, and electrical test specifications. Tool references identify the flywheel holder (P/N 507976), compression-gauge adapter (P/N 5037485), and gearcase pressure tester (P/N 507977).

Installation and predelivery coverage includes transom preparation, outboard mounting, propeller selection, break-in, and running checks.

English PDF and Included Pages

A single, printable 179-page PDF in English: 148 pages of front matter and service content (including two technician-notes pages), a 24-page safety section (including one blank page), a three-page index, two cover pages, and two additional blank pages. All are included in the total.