1965-1978 Evinrude Outboard Motors 1.5-35 HP Service Manual

• Covers 1965–1978 Evinrude outboard motors from 1.5 HP through 35 HP, detailing 2-cylinder, 2-cycle, and electric start configurations.
• Official OEM publication, Part No. 388150, first edition Evinrude service repair handbook.
• Contains 48 exploded-view diagrams and 9 dedicated electrical wiring schematics.
• 202 pages of technical reference documentation for power head, fuel system, and lower unit maintenance.
• Delivered as an instant download the moment payment clears.
• Indexed PDF search covers every chapter and appendix.
• Foundational reference providing essential clearance tables and torque charts for late-model 35 HP motors introduced in 1976.

Engine and Fuel System Documentation

The documentation provides a structured overview of the power head, fuel system, and electrical components across the 1.5–35 HP range. For a busy marine workshop, having immediate access to these precise factory tolerances eliminates guesswork during complex diagnostics. Chapters explore carburetor operation, detailing the float mechanism, fuel-to-oil mixing ratios, and high-speed needle adjustment for varying altitude conditions. Troubleshooting sections isolate performance issues such as flat spots, power loss, and ignition timing faults using standardized testing techniques. When handling pressurized fuel lines or high-voltage ignition systems, technicians must always verify system depressurization and disconnect power sources prior to maintenance to prevent accidental combustion or injury.

Electrical and Specification Highlights

Wiring diagrams for the Evinrude lineup span manual and electric starter configurations. These include specific pinouts for 12-volt battery connections and alternator output. Engine specifications cover critical bore and stroke data, piston ring gaps, and crankshaft journal clearances found in the comprehensive technical reference data. Torque charts list precise tightening values in both ft-lbs and in-lbs for critical components like flywheel nuts and cylinder head screws. Battery maintenance sections outline specific gravity thresholds of 1.260–1.280 and charging safety protocols for the 6N6-3B unit. Whether planning a routine overhaul or evaluating the feasibility of a larger outboard repair, this reference delivers the exact schematics required to maintain factory structural integrity.