The 1988 Evinrude 140 HP is a V4 outboard motor featuring loop-charged combustion system, 90-degree V-block design, 122.9 cubic inch displacement, 140 horsepower at 5000 RPM, 2.0:1 gear ratio, 15-amp alternator, thermostatically controlled cooling, oil injection system, power trim and tilt, CD ignition system, and single-lever remote control. Below are key sections for safety, specifications, operation, maintenance, troubleshooting, and service procedures.
Key components: V4 powerhead, CD ignition, oil injection system, power trim/tilt, single-lever remote control, thermostatic cooling.
| Feature | Description |
|---|---|
| Powerhead | 122.9 cu in V4 loop-charged design |
| Ignition System | CD electronic ignition with power pack |
| Fuel System | Dual carburetors with VRO oil injection |
| Cooling System | Thermostatically controlled water pump |
| Gearcase | 2.0:1 gear ratio with shock-absorbing hub |
| Electrical | 15-amp alternator with voltage regulator |
| Trim/Tilt | Power trim and tilt with manual override |
| Controls | Single-lever remote control with safety lanyard |
| Propeller | 13.25" x 17" standard aluminum prop |
| Weight | 319 lbs (145 kg) without propeller |
Proper installation ensures optimal performance and safety.
WARNING! Motor is heavy; use lifting eye and proper equipment. Ensure all connections are secure.
Initial setup procedures for new installation.
CAUTION! Always test in water with proper ventilation. Follow break-in procedures carefully.
Single-lever remote control operation and basic controls.
Remote Control: Throttle/gear shift combination lever, choke button, tilt switch, emergency stop switch with lanyard.
Starting Procedure: Ensure gear in neutral, attach safety lanyard, push key in to choke (cold start), turn key to start. Warm starting usually requires no choke.
Trim Operation: Use trim switch on control handle or motor to adjust running angle. Tilt switch raises motor completely for trailering.
VRO oil injection system and carburetor operation.
Tip: Always use fresh fuel and check fuel lines for cracks or leaks regularly.
CD ignition and charging system components.
WARNING! Disconnect battery before servicing electrical components. Use marine-grade components only.
Regular maintenance ensures long engine life.
| Interval | Service Required |
|---|---|
| Every use | Check fuel lines, oil level, lower unit oil |
| 100 hours/annually | Change spark plugs, water pump impeller |
| 200 hours | Clean carburetors, check thermostat |
| 300 hours | Replace fuel filters, check timing |
| 500 hours | Decarbonize cylinders, check compression |
Proper storage prevents damage during off-season.
CAUTION! Store in dry location with motor in vertical position.
EPA certified for marine use. Manufactured by Outboard Marine Corporation. Evinrude is a registered trademark of OMC. For technical support and parts, contact authorized Evinrude dealers or OMC Customer Service. This manual covers model E140TLCCA manufactured for 1988 model year.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Fuel, spark, or compression | Check fuel supply, spark plugs, compression |
| Poor performance | Fuel restriction, fouled plugs | Check fuel filters, replace spark plugs |
| Overheating | Water pump, thermostat | Replace water pump impeller, check thermostat |
| No oil injection | VRO pump, oil tank | Check oil tank level, VRO pump operation |
| Electrical failure | Battery, connections | Test battery, check all electrical connections |
Service: Contact authorized Evinrude dealer for major repairs. Technical service bulletins available from OMC.