Coleman 15HP Short Tiller – 4S (M15773)
Coleman 15HP Short Tiller – 4-Stroke outboard motor is a robust and efficient engine, designed to deliver reliable performance for small boats and light-duty applications. Known for its affordability and simplicity, it’s a great choice for recreational boaters, anglers, and utility craft operators. Below is a detailed description: Coleman 15HP Short Tiller – 4S (M15773)
General Information
- Brand: Coleman
- Horsepower: 15 HP
- Engine Type: 4-Stroke
- Control Type: Tiller Handle
- Shaft Length: Short (15 inches)
- Fuel Delivery: Carbureted
Key Features
- Fuel Efficiency: The 4-stroke engine design delivers excellent fuel economy compared to 2-stroke models.
- Tiller Handle Control: Integrated throttle and gear shift provide precise and easy handling.
- Manual Start (Optional Electric Start): Dependable pull-start system, with electric start options available on some models.
- Lightweight Design: Typically weighing around 110–120 pounds, making it portable and easy to install.
- Low Emissions: Meets EPA standards for reduced environmental impact.
Fuel and Oil
- Fuel Type: Unleaded gasoline (87 octane minimum).
- Oil Type: SAE 10W-30 or 10W-40 (certified for marine use).
- Fuel Tank: External fuel tank, typically 3–6 gallons in capacity.
Performance and Applications
- Speed Potential: Capable of propelling small boats at speeds of 15–25 mph, depending on the boat size and load.
Applications:
- Fishing boats
- Dinghies or tenders
- Utility boats
Maintenance Tips
Fuel System Maintenance
- Inspect fuel lines, primer bulbs, and connections regularly for wear or leaks.
- Replace the inline fuel filter annually or as needed.
- Use a fuel stabilizer to prevent carburetor issues during off-season storage.
Oil Changes
- Change the engine oil every 50–100 hours or at least once per season.
- Replace the oil filter during each oil change for optimal performance.
Cooling System Care
- Check and replace the water pump impeller every 2–3 years to ensure proper cooling.
- Flush the cooling system with fresh water after saltwater use to prevent corrosion.
Spark Plug Replacement
- Recommended Spark Plug: NGK DPR6EA-9 or equivalent.
- Replace spark plugs annually or every 100 hours of use. Check and set the gap to 0.030 inches.
Carburetor Cleaning
- Clean the carburetor if the engine idles roughly or exhibits power loss. Use a carburetor cleaner or rebuild kit.
Common Issues and Troubleshooting
Starting Problems
- Cause: Stale fuel, weak spark, or clogged carburetor.
- Solution: Replace old fuel, clean or rebuild the carburetor, and inspect spark plugs.
Overheating
- Cause: Worn or damaged impeller, or debris in the cooling water intake.
- Solution: Replace the impeller and clean the intake screens.
Loss of Power
- Cause: Fouled spark plugs, dirty carburetor, or restricted fuel flow.
- Solution: Replace spark plugs, clean the carburetor, and inspect the fuel lines and filter.
Parts and Accessories
OEM Parts
- Coleman Dealers: Genuine parts are available at authorized Coleman service centers.
- Online Retailers:
Aftermarket Parts
- Sierra Marine: Offers reliable aftermarket components, including filters and impellers.
- Mallory Marine: Known for high-quality ignition and carburetor components.
Used Parts
- eBay: Search for “Coleman 15HP 4-stroke parts” for used or reconditioned options.
- Local Salvage Yards: An affordable source for rare or discontinued parts.
Performance Enhancements
Propeller Upgrade:
- Aluminum propellers are standard; upgrading to stainless steel can improve durability and performance.
- Choose a propeller pitch that suits your boat’s size and intended use.
Fuel Efficiency Tips:
- Use ethanol-free gasoline to minimize carburetor issues.
- Add a fuel stabilizer like Sta-Bil to keep fuel fresh during storage.
Engine Tune-Up:
- Periodically decarbonize the engine to maintain peak performance and extend its lifespan.
Reviews
There are no reviews yet.