6YC (2019) - Outboard motor YAMAHA - Free user manual and instructions
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| Product Type | Outboard Motor |
| Brand | Yamaha |
| Model | 6YC |
| Year | 2019 |
| Power Output | 6 hp (4.4 kW) |
| Engine Type | 2-stroke or 4-stroke (typical for 6YC: 4-stroke) |
| Displacement | 139 cc (approx.) |
| Cooling System | Water cooled with thermostat |
| Starting System | Manual (recoil starter) |
| Gear Ratio | 2.08:1 |
| Fuel Tank | Built-in 1.5 L (approx.) or external 12 L optional |
| Fuel Type | Unleaded gasoline (min 91 octane) |
| Oil System | Wet sump, 0.6 L capacity (SAE 10W-30) |
| Weight | 27 kg (59.5 lbs) |
| Overall Length | 790 mm (31.1 in) |
| Overall Width | 340 mm (13.4 in) |
| Overall Height | 1,080 mm (42.5 in) |
| Transom Height | S: 460 mm (18.1 in) or L: 580 mm (22.8 in) |
| Steering System | Tiller handle |
| Trim System | Manual tilt |
| Safety Features | Emergency stop switch, engine cut-off lanyard |
| Corrosion Protection | Sacrificial anodes (zinc) |
| Warranty | 3 years (limited) |
Frequently Asked Questions - 6YC (2019) YAMAHA
What type of oil should I use for the Yamaha 6YC outboard?
Use a high-quality SAE 10W-30 4-stroke oil that meets NMMA FC-W standards. The oil capacity is approximately 0.6 L.
How do I start the motor?
1. Connect the fuel line and squeeze the primer bulb until hard. 2. Attach the engine cut-off lanyard to your body. 3. Set the throttle to 'Start' position. 4. Pull the recoil starter handle firmly.
What is the recommended fuel type?
Use unleaded gasoline with a minimum octane rating of 91 (Research Method). Avoid using ethanol blends above 10%.
How often should I change the gear oil?
Change the gear oil after the first 20 hours of operation, then every 100 hours or annually. Use SAE 90 gear oil.
What is the weight of the Yamaha 6YC?
The weight is approximately 27 kg (59.5 lbs), making it easy to transport and mount on small boats.
How do I store the outboard for winter?
Flush the cooling system with fresh water, run the engine to remove moisture, change the oil, grease all fittings, and store in a vertical position with the tank empty.
What is the maximum RPM?
The recommended full throttle RPM range is 4,500–5,500 RPM. Adjust the trim angle for optimal performance.
Can I use the motor in saltwater?
Yes, but you must flush the engine with fresh water after each use to prevent corrosion. Rinse the exterior and apply anti-corrosion spray.
How do I replace the spark plug?
Use a Champion QL77JC4 or NGK BPR6HS spark plug. Gap to 0.7–0.8 mm. Torque to 20 N·m.
What is the transom height requirement?
The motor comes in short shaft (460 mm) for transoms up to 457 mm and long shaft (580 mm) for transoms up to 570 mm. Choose the correct length for your boat.
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USER MANUAL 6YC (2019) YAMAHA
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Product information
Brand : YAMAHA
Model : 6YC (2019)
Category : Outboard motor