Yamaha 1994-96 115 HP Outboard Specs & Maintenance
The 1994-1996 115 HP 90° V4 two-stroke outboard is a legend of mid-90s marine engineering. Packing 106 cubic inches (1730 cc) of displacement across four cylinders, this reliable powerhouse delivers the low-end torque boaters demand. Whether you are restoring a classic hull or keeping your everyday workhorse running smoothly, our database provides the essential factory specifications DIY mechanics need to maintain peak performance on the water.
Complete Technical Specifications
| Specification | Details |
|---|---|
| Model / Horsepower | 115 |
| Year Range | 1994-96 |
| Engine Type | 90 LV 2-st |
| Cylinders | 4 |
| Displacement | 106 cu-in (1730 cc) |
| Bore x Stroke | |
| Compression Ratio | |
| Full Throttle RPM | 4500-5500 |
| Idle Speed (Neutral) RPM | 700-800 |
| Idle Speed (Trolling) RPM | 600-700 |
| Spark Plug (NGK) | BR8HS-10 |
| Spark Plug (Champion) | QL78C |
| Spark Plug Gap | 0.035-0.039 in (0.9-1.0 cc) |
| Ignition System | CDI |
| Ignition Timing (Idle) | 4-6 ATDC |
| Ignition Timing (Carb Pickup) | 3-5 ATDC |
| Ignition Timing (Full Advance) | 24-26 |
| Fuel System | Carb |
| Starting System | Electric |
| Oil Injection System | PB or 50:1 PM |
| Injection Oil Ratio | PB or 50:1 PM |
| Gear Oil Capacity (mL/cc) | 760 |
| Gear Oil Capacity (Oz) | 25.7 |
| Approximate Weight | |
| Battery CCA / Reserve | 380 (70) |
| Battery Reserve | 124 minutes |
| Tach Pole Setting | 12 |
| Test Propeller Part Number | YB-1624 |
| Test Propeller New Engine RPM | 4900-5100 |
Maintenance Summary
Keeping your 115 HP V4 running strong requires routine ignition tune-ups. Always install fresh NGK BR8HS-10 spark plugs, set precisely to a 0.035–0.039 inch (0.9–1.0 mm) gap. Pair this with regular gear lube changes and clean fuel for reliable starts every season.
Disclaimer & Information Notice: Specifications, fuel ratios, and maintenance guidelines listed on VintageMotorSpecs.com are compiled for historical reference and educational purposes only. Always verify data against an official OEM service manual prior to ordering parts or executing repairs. VintageMotorSpecs.com assumes no liability for repair errors, equipment damage, or personal injury resulting from the use of this data.
Spot an error or discrepancy in these specs? Please contact us with your engine details so we can update our database.
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