Yamaha 1996 48 HP Outboard Specs & Maintenance
Looking to keep your 1996 48 HP 2-stroke outboard running smoothly? Powered by a reliable 46 cu in (760cc) inline twin-cylinder engine, this mid-range workhorse delivers the punch and durability DIY boaters love. Whether you’re troubleshooting performance issues or performing routine seasonal service, having the right specs is critical. Explore our database for exact tuning specs, ignition details, and expert mechanics’ advice tailored specifically for your 1996 twin-cylinder marine engine.
Complete Technical Specifications
| Specification | Details |
|---|---|
| Model / Horsepower | 48 |
| Year Range | 1996 |
| Engine Type | IL 2-stroke |
| Cylinders | 2 |
| Displacement | 46 cu-in (760 cc) |
| Bore x Stroke | 3.20 x 2.80 in (82 x 72 mm) |
| Compression Ratio | 6.5:1 |
| Full Throttle RPM | 4500-5500 |
| Idle Speed (Neutral) | 1200-1300 |
| Idle Speed (Trolling) | 850-950 |
| Spark Plug (NGK) | B7HS |
| Spark Plug (Champion) | L82C |
| Spark Plug Gap | 0.024-0.28 in (0.6-0.8 mm) |
| Ignition System | CDI |
| Ignition Timing (Idle) | 3-5 |
| Ignition Timing (Carb Pickup) | 3-5 |
| Ignition Timing (Full Advance) | 19-21 |
| Fuel System | Carb |
| Starting System | Manual |
| Oil Injection System | Pre-Mix 50:1 |
| Injection Oil Ratio | Pre-Mix 50:1 |
| Gear Oil Capacity (mL/cc) | 500 |
| Gear Oil Capacity (Oz) | 16.9 |
| Approximate Weight | 183-187 lbs (83-85 kg) |
| Battery CCA / Reserve | 380 (70) |
| Battery Reserve | 124 minutes |
| Tach Pole Setting | 4 |
| Test Propeller Part Number | YB-1611 |
| Test Propeller New Engine RPM | 5300-5500 |
Maintenance Summary
Keep this 760cc two-stroke running strong by maintaining proper fuel-to-oil ratios and fresh ignition components. For optimal combustion, install NGK B7HS spark plugs gapped between 0.024–0.028 inches (0.6–0.8 mm). Regularly inspect gear lube and water pump impellers to ensure maximum reliability on the water.
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Notice: Specifications, fuel ratios, and maintenance guidelines listed on VintageMotorSpecs.com are compiled for historical reference and educational purposes only.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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