Yamaha 1994-95 175 HP Outboard Specs & Maintenance
Built for raw mid-90s muscle, the 1994-1995 175 HP 90° V6 2-stroke outboard is a true workhorse on the water. Packing 158 cubic inches (2596 cc) of displacement across six cylinders, this powerful engine delivers exceptional hole-shot performance and long-term reliability. Whether you are restoring a classic boat or maintaining your offshore rig, our database provides the authentic specs needed to keep it running strong.
Complete Technical Specifications
| Specification | Details |
|---|---|
| Model / Horsepower | 175 |
| Year Range | 1994-95 |
| 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) | BR8HS-10 |
| Spark Plug (Champion) | QL78C |
| 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) | 5-7 ATDC |
| Ignition Timing (Full Advance) | 23-25 |
| 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 | 392-430 lbs (178-195 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 | 4900-5100 |
Maintenance Summary
To keep your 175 HP V6 firing smoothly, regular ignition system maintenance is crucial. Always run NGK BR8HS-10 spark plugs gapped precisely between 0.035–0.039 inches (0.9–1.0 mm). Inspect plugs seasonally for carbon fouling to ensure crisp throttle response and peak 2-stroke performance.
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Notice: Specifications, fuel ratios, and maintenance guidelines listed on VintageMotorSpecs.com are compiled for historical reference and educational purposes only.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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