Target Audience:
Recreational boaters and marine technicians servicing 1973 Evinrude V4 outboards
Intended Use:
Owner maintenance and professional repair of the 135 hp Starflite
Segment:
High-output V4 outboard for runabouts and fishing boats
Brand Reputation:
Evinrude was a leading US outboard brand in the 1970s
Design Strength:
V4 crossflow design with proven reliability
Service Network:
Wide dealer and parts availability for Evinrude engines of this era
Engine Configuration:
V4 two-stroke crossflow
Ignition:
Magneto breaker-point ignition
Steering Options:
Remote or tiller depending on boat rigging
Delivery Method:
Instant download
Engine Systems:
Fuel, ignition, cooling, lubrication, exhaust, electrical
Lower Unit:
Gearcase, driveshaft, propeller shaft, water pump
Powerhead:
Cylinder block, pistons, connecting rods, crankshaft, crankcase
Electrical:
Stator, charge coil, ignition coils, wiring harness
Fuel System:
Carburetors, fuel pump, fuel lines, tank connections
Tilt and Trim:
Manual and power tilt assemblies where equipped
Manual Type:
Service and repair manual
Depth:
Procedures for maintenance, troubleshooting, and overhaul
Page Count:
N/A - not specified in source data
Model Identification:
Serial and model number locations covered
Specifications:
Tune-up and general engine specifications
Torque Values:
Fastener and assembly torque tables
Safety:
Shop safety and lifting precautions
Routine Service:
Tune-up procedures and service intervals
Lubrication:
Grease points and lower unit lubricant service
Fuel System Service:
Fuel filter, fuel pump, and carburetor service procedures
Ignition Service:
Breaker point adjustment and spark plug service
Powerhead Removal:
Removal and installation procedures
Cylinder Block:
Cylinder head, block inspection, and reconditioning
Pistons and Rods:
Piston, ring, and connecting rod service
Crankshaft:
Crankshaft and bearing inspection and reassembly
Crankcase:
Crankcase and crankcase seal service
Cooling System:
Water pump impeller, thermostat, and cooling passages
Exhaust System:
Exhaust housing and relief valve service
Ignition System:
Magneto, coils, stator, and wiring repairs
Charging System:
Stator and rectifier test and replacement
Starting System:
Electric starter service and starting circuit testing
Gearcase:
Gearcase disassembly, inspection, and reassembly
Gears:
Forward, reverse, and pinion gear service
Clutch Dog:
Clutch dog and shift mechanism service
Propeller:
Propeller removal, installation, and inspection
Water Pump:
Water pump housing and impeller replacement
Wiring Diagrams:
Electrical schematics for the covered model
Special Tools:
OMC special tool references where required
Parts Information:
Component identification and part reference notes
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Two-stroke V4 crossflow outboard
Displacement:
Approximately 99.6 cu in (1.6 L)
Bore:
N/A - exact factory bore value not confirmed in source data
Stroke:
N/A - exact factory stroke value not confirmed in source data
Cylinder Configuration:
V4
Fuel System:
Carbureted, two-stroke
Carburetor:
Multiple carburetors, two-stroke mix lubrication
Fuel Mix:
Two-stroke fuel and oil mixture
Ignition:
Magneto with breaker points
Cooling:
Raw water cooled
Operating Range:
N/A - RPM range not confirmed in source data
Lubrication:
Oil mixed with fuel
Type:
Mechanical dog clutch gearcase
Standard Transmission:
Forward, neutral, reverse
Shift Control:
Remote or tiller shift lever
Gear Ratio:
N/A - exact gear ratio not confirmed in source data
Lower Unit:
Water pump and gearcase lubricated separately
Propeller Shaft:
Splined propeller shaft
Exhaust:
Through-hub or through-prop exhaust depending on gearcase
Service:
Gearcase lubricant level and impeller condition should be checked regularly
Configuration:
V4 outboard motor
Shaft Lengths:
N/A - multiple shaft lengths offered, exact value not confirmed
Weight:
N/A - exact dry weight not confirmed in source data
Curb Weight:
N/A - not published for outboard motors in this format
Fuel Type:
Gasoline mixed with two-stroke oil
Kill Switch:
Emergency stop lanyard provisions depending on rigging
Cowl:
Vented engine cowling
Neutral Start:
Starting circuit designed to prevent start in gear
Two-Stroke Handling:
Requires proper fuel and oil mixing
Cooling Warning:
Overheat from impeller failure is a major risk
Crash Ratings:
N/A - outboard motors are not crash tested
Type:
Two-stroke crossflow V4
Ignition:
Magneto breaker-point ignition
Charging:
Stator charging system where equipped
Controls:
Remote control or tiller handle
Audio System:
N/A - not applicable to outboard motors
Driver Assistance:
N/A - not applicable to outboard motors
Break-In:
Follow OMC break-in procedure for new or rebuilt engines
Annual Service:
Gearcase lubricant, water pump impeller inspection, spark plugs
Fuel System:
Carburetor cleaning and fuel filter checks
Ignition:
Breaker point adjustment and spark plug replacement
Lower Unit Lubricant:
OMC or equivalent marine gearcase lubricant
Fuel Mix:
Two-stroke fuel and oil mixture
Grease:
Marine-grade water-resistant grease for fittings
Cooling System:
Impeller wear and overheating
Ignition:
Breaker point wear and ignition misfire
Fuel System:
Carburetor contamination and ethanol-related fuel issues
Corrosion:
Saltwater corrosion of fasteners and cooling passages
Manufacturer:
Outboard Marine Corporation (OMC)
Era:
1970s US outboard market
Model Designation:
135 hp Starflite, model 135383
Engine Family:
Evinrude V4 crossflow series
Production Location:
N/A - exact plant not confirmed in source data
