Yamaha 1996 150 HP Outboard Specs & Maintenance
The 1996 150 HP V6 2-stroke outboard remains a legend for its bulletproof reliability, massive 2.6-liter (158 cu. in.) displacement, and exceptional hole-shot power. Built with a robust 90-degree V6 block, this classic motor is a favorite among DIY marine mechanics looking to keep a legendary powerhouse running strong. Explore our database for factory specs, tune-up guidance, and essential part details to keep your vintage 150 HP purring on the water.
Complete Technical Specifications
| Specification | Details |
|---|---|
| Model / Horsepower | 150 |
| Year Range | 1996 |
| Engine Type | 90 LV 2-st |
| Cylinders | 6 |
| Displacement | 158 cu-in (2596 cc) |
| Bore x Stroke | 3.54 x 2.68 in (90 x 68 mm) |
| Compression Ratio | |
| Full Throttle RPM | 4500-5500 |
| Idle Speed (Neutral) RPM | 675-725 |
| Idle Speed (Trolling) RPM | 550-600 |
| Spark Plug (NGK) | BR7HS-10 |
| Spark Plug (Champion) | RL82C |
| Spark Plug Gap | 0.035-0.039 in (0.9-1.0 mm) |
| Ignition System | |
| Ignition Timing (Idle) | 6-8 ATDC |
| Ignition Timing (Carb Pickup) | 6-8 ATDC |
| Ignition Timing (Full Advance) | 21-23 |
| 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) | 980 |
| Gear Oil Capacity (Oz) | 33.1 |
| Approximate Weight | 392-434 lbs (178-197 kg) |
| Battery CCA / Reserve | 380 (70) |
| Battery Reserve | 124 minutes |
| Tach Pole Setting | 12 |
| Test Propeller Part Number | YB-1626 |
| Test Propeller New Engine RPM | 4600-4800 |
Maintenance Summary
Keep your 1996 150 HP V6 performing at its peak with routine maintenance. Always run fresh NGK BR7HS-10 spark plugs gapped to 0.035–0.039 inches (0.9–1.0 mm). Inspect fuel filters, water pump impellers, and lower unit gear lube regularly to ensure maximum reliability and engine longevity.
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Notice: Specifications, fuel ratios, and maintenance guidelines listed on VintageMotorSpecs.com are compiled for historical reference and educational purposes only.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.
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