Evinrude Johnson 235 HP Outboard 1978–1985 Service Repair Manual

🛠️ Evinrude Johnson 235 HP Outboard 1978–1985 Service Repair Manual – PDF Download

🧰 This factory service manual delivers detailed repair instructions and specifications for Evinrude and Johnson 235 HP 2-stroke V6 outboards built between 1978 and 1985. Designed for experienced mechanics and DIY boaters, this manual covers everything from piston and crankshaft service to ignition timing and lower unit gear repairs.

📲 Instant PDF download – searchable and printable for easy navigation on any device.

🔍 Model Background

The Evinrude Johnson 235 HP Outboard (1978–1985) was a high-performance 2-stroke outboard engine built for offshore power and speed. As one of the most powerful outboards of its time, it became a popular choice for performance fishing boats, offshore cruisers, and high-speed recreational vessels.

Powered by a 2-stroke V6 engine with a displacement of 3.6 liters, the 235 HP model was known for its raw torque, strong top-end power, and aggressive throttle response. It used carbureted fuel delivery with a cross-flow scavenging design, typical of the era, and ran on a pre-mix fuel system (50:1 oil-to-gas ratio).

The engine was offered in both Evinrude and Johnson badging, with virtually identical mechanicals, allowing boaters to choose based on brand preference or dealer availability. Available in 20" and 25" shaft lengths, it supported various hull types and transom configurations.

With its robust gearcase, mechanical steering compatibility, and solid ignition system, the 235 HP offered dependable performance under heavy loads. It was often paired with deep-V hulls and heavy offshore boats, providing the power needed for high-speed runs, water sports, and ocean fishing trips.

While considered a “fuel-thirsty beast” by modern standards, the 235 HP remains a nostalgic favorite among vintage outboard enthusiasts and is respected for its powerful output, mechanical simplicity, and unmistakable 2-stroke sound. It stands as a symbol of the muscle era in outboard marine propulsion.

📄 Manual Details for Evinrude Johnson 235 HP (1978–1985):

• Engine Type: 2-stroke, V6 (high-performance loop-charged)
• Fuel System: Carbureted
• Cooling System: Thermostat-controlled water cooling
• Ignition System: CDI (Capacitor Discharge Ignition)
• Starting System: Electric start
• Trim & Tilt: Hydraulic power trim and Selectrim systems included
• Years Covered: 1978–1985
• File Format: PDF (searchable and printable)
• Page Count: 465+ pages

📆 Model Years Covered:

• Evinrude Johnson 235 HP Outboard 1978
• Evinrude Johnson 235 HP Outboard 1979
• Evinrude Johnson 235 HP Outboard 1980
• Evinrude Johnson 235 HP Outboard 1981
• Evinrude Johnson 235 HP Outboard 1982
• Evinrude Johnson 235 HP Outboard 1983
• Evinrude Johnson 235 HP Outboard 1984
• Evinrude Johnson 235 HP Outboard 1985

📖 Manual Sections Include:

• Routine Maintenance
• Service intervals, recommended lubricants, adjustments
• Fuel & Carburetion
• Jet specs, float level, oil injection (where applicable)
• Ignition & Electrical
• CDI testing, stator resistance, timer base replacement
• Cooling System
• Impeller service, thermostat checks, water jacket cleaning
• Powerhead Repair
• Pistons, rings, crankshaft, bearings, gasket reassembly
• Lower Unit
• Gearcase disassembly, seals, driveshaft and propshaft
• Trim & Tilt Repair
• Hydraulic trim motor, fluid service, troubleshooting tips
• Wiring Schematics
• Complete electrical diagrams for all 235 HP models

💾 Format & Compatibility:

• File Type: PDF (Digital Download)
• Searchable & Printable: ✅ Yes
• Compatible with: Windows, macOS, iOS, Android, Linux

🔍 Keywords:

Johnson 235 HP service manual, Evinrude 235 HP repair guide, 2-stroke V6 outboard PDF, CDI ignition wiring, carb specs, gearcase rebuild, Selectrim troubleshooting

❓ Mini FAQ:

Q: Are wiring diagrams included for all years?
A: Yes – complete schematics for ignition, charging, and trim systems are provided.

Q: Can I use this manual to overhaul the lower unit?
A: Absolutely – gearcase disassembly and reassembly are fully covered with specs and illustrations.

Q: Is this manual good for both Johnson and Evinrude 235 HP engines?
A: Yes – the manual supports both brands from 1978 to 1985.

🧭 Helpful Resources for Johnson & Evinrude Outboard Owners

• Why Every Evinrude & Johnson Outboard Owner Should Own a Service Manual – Find out how a downloadable repair manual can simplify maintenance and help you troubleshoot common problems on your own.
• Outboard Engine Troubleshooter – Not sure what’s wrong with your Johnson or Evinrude engine? Our free tool lists common issues and DIY fixes across all major brands.

🔧 Browse More Johnson & Evinrude Manuals

Note: While our manuals are designed for DIY use, they do not replace professional mechanical training. If you're unsure about a repair or your engine shows serious issues, we strongly recommend visiting a certified marine mechanic. These guides are best suited for owners with basic to moderate mechanical experience.