Yamaha 1984-87 220 HP Outboard Specs & Maintenance
Unleash classic raw power on the water with the 1984-1987 220 HP 2-stroke V6 outboard motor. Built with a muscular 90-degree V6 block displacing 158 cubic inches (2596 cc), this legendary engine delivers high-rpm performance for vintage speedboats and heavy-duty cruisers. Whether you are restoring a classic hull or keeping a faithful workhorse running, our comprehensive database provides the precise tune-up specs, spark plug details, and maintenance guidelines you need to keep this V6 roaring.
Complete Technical Specifications
| Specification | Details |
|---|---|
| Model / Horsepower | 220 |
| Year Range | 1984-87 |
| 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 | 6.4:1 |
| Full Throttle RPM | 4800-5800 |
| Idle Speed (Neutral) RPM | 725-775 |
| Idle Speed (Trolling) RPM | 525-675 |
| Spark Plug (NGK) | BR9HS-10 |
| Spark Plug (Champion) | QL78C |
| Spark Plug Gap | 0.035-0.039 in (0.9-1.0 mm) |
| Ignition System | CDI Micro |
| Ignition Timing (Idle) | 4-6 ATDC |
| Ignition Timing (Carb Pickup) | 4-6 ATDC |
| Ignition Timing (Full Advance) | 25-27 |
| Fuel System | Carb |
| Starting System | Electric |
| Oil Injection System | Precision Blend |
| Injection Oil Ratio | Precision Blend |
| Gear Oil Capacity (mL/cc) | 980 |
| Gear Oil Capacity (Oz) | 33.1 |
| Approximate Weight | 408-430 lbs (185-195 kg) |
| Battery CCA / Reserve | 380 (100) |
| Battery Reserve | 124 minutes |
| Tach Pole Setting | 12 |
| Test Propeller Part Number | YB-1626 |
| Test Propeller New Engine RPM | 5350-5500 |
Maintenance Summary
Keep your 220 HP V6 running smoothly by installing NGK BR9HS-10 spark plugs gapped precisely between 0.035–0.039 inches (0.9–1.0 mm). Regular maintenance for this 158 cu in 2-stroke requires fresh fuel mix, annual lower unit gear lube changes, and routine water pump impeller inspections.
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Notice: Specifications, fuel ratios, and maintenance guidelines listed on VintageMotorSpecs.com are compiled for historical reference and educational purposes only.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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