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Warnings about flammable fuels and hot engine parts.
Warnings about rotating parts causing severe injury.
Warnings about electrical shock from components.
Warning regarding California Proposition 65 and exhaust fumes.
Recommends detergent oil of API service class SG, SH, SJ or higher.
Details recommended oil viscosity based on temperature.
Explains how to identify oil specifications on containers.
Explains how to find and record model, specification, and serial numbers.
Lists key engine specifications like bore, stroke, displacement, power, and torque.
Steps to perform before starting the engine.
Procedures for starting the engine using throttle/choke controls.
Tips for starting the engine in cold temperatures.
Specifies maximum continuous operating angles for the engine.
Importance of keeping cooling areas clean to prevent overheating.
Warning against tampering with governor settings.
Outlines required maintenance tasks and frequencies.
Detailed steps on how to check the engine oil level.
Explanation of the optional oil pressure switch system.
Instructions for washing and oiling the precleaner element.
Guidance on cleaning or replacing the paper air cleaner element.
Ensuring proper cooling by cleaning external surfaces and fins.
Procedures for checking, gapping, and replacing the spark plug.
Recommendation to inspect and replace the fuel filter periodically.
Steps for diagnosing and adjusting the carburetor for performance issues.
Table listing possible causes for engine starting and running issues.
Steps for preparing the engine for long-term storage.
Information on engine identification numbers for ordering parts.
Details of the limited warranty coverage for the engine.
Explanation of emission control systems warranty requirements.
Outlines owner's duties for maintaining warranty coverage.
Lists conditions and parts not covered by the emission control warranty.
Emphasizes owner's responsibility for proper maintenance.
The KOHLER COURAGE SV470-610 is a vertical crankshaft engine designed for various outdoor power equipment applications. It is a four-cycle, single-cylinder, air-cooled engine known for its durability, reliability, and ease of maintenance. The engine features an acoustically dampened air induction system, a cross-flow cylinder head, and full-pressure lubrication, all contributing to its efficient operation and extended lifespan. It is designed to meet or exceed SAE J1940 HP standards, ensuring a certain level of performance and quality.
The primary function of the KOHLER COURAGE SV470-610 engine is to provide reliable power for a range of equipment, typically those requiring a vertical crankshaft configuration, such as lawn mowers and other garden machinery. It converts fuel into mechanical energy to drive the equipment's various functions. The engine's design emphasizes efficient combustion and power delivery, making it suitable for demanding tasks while maintaining fuel efficiency. Its full-pressure lubrication system ensures that all critical internal components are adequately lubricated, reducing wear and extending the engine's operational life, especially under varying operating angles. The electronic ignition system ensures consistent and easy starting, further enhancing its functional reliability.
The KOHLER COURAGE SV470-610 is designed with user convenience and safety in mind. For starting, the engine can be equipped with either a single-lever throttle/choke control or separate levers for throttle and choke. For a single-lever system, the user places the lever into the "fast/choke on" position. With separate levers, the throttle is set midway between "slow" and "fast," and the choke control is set to "on." After starting, the choke can be gradually moved to the "off" position as the engine warms up. It's crucial to ensure the equipment is in neutral before starting and to avoid continuous cranking for more than 10 seconds to prevent starter motor burnout. A 60-second cool-down period is recommended between starting attempts. The engine is designed to operate continuously at angles up to 25 degrees, but users should always check the oil level to ensure it's at the "F" mark on the dipstick, as insufficient lubrication at extreme angles can cause damage. The engine's speed should not be tampered with by adjusting the governor setting, as overspeeding is hazardous and voids the warranty. For stopping, all PTO attachments should be disengaged to remove the load. For engines without a shutdown solenoid, the throttle is moved to "slow" or "low" idle for 30-60 seconds before stopping. For engines with a shutdown solenoid, the throttle control is positioned between half and full throttle before stopping.
Maintaining the KOHLER COURAGE SV470-610 is straightforward, with a clear schedule provided to ensure optimal performance and longevity.
Oil Maintenance: The engine requires high-quality detergent oil of API service class SG, SH, SJ, or higher, with viscosity selected based on ambient air temperature. Oil level should be checked daily and maintained at the "F" mark on the dipstick. The oil and filter should be changed annually or every 100 hours while the engine is warm to ensure proper drainage of impurities. Genuine Kohler oil filters are recommended.
Fuel Recommendations: Only clean, fresh, unleaded gasoline with an octane rating of 87 or higher (90 minimum for Research method) should be used. Gasohol (up to 10% ethyl alcohol) and Methyl Tertiary Butyl Ether (MTBE) blends (up to 15% MTBE) are approved. Gasoline from the previous season should not be used to prevent gum deposits.
Air Cleaner Maintenance: The engine uses a replaceable, high-density paper air cleaner element, often with an oiled foam precleaner. The air cleaner system should be checked daily for dirt and debris. The precleaner should be washed with warm water and detergent, rinsed, air-dried, and re-oiled every two months or 25 hours. The paper element should be checked every two months or 25 hours and replaced annually or every 100 hours. Tapping the pleated side gently can dislodge dirt, but washing or using pressurized air is not recommended as it can damage the element.
Cooling System: The grass screen, cooling fins, and other external surfaces must be kept clean to prevent overheating. Annually or every 100 hours, the blower housing and other cooling shrouds should be removed to clean the cooling fins.
Ignition System: The electronic CD ignition system requires minimal maintenance, primarily checking and replacing the spark plug every two years or 200 hours. The spark plug gap should be set to 0.76 mm (0.030 in.). Cleaning the area around the spark plug before removal is important to prevent dirt from entering the engine.
Carburetor: The Walbro fixed main jet carburetor is factory-calibrated and generally does not require adjustment. However, if starting problems or rough running occurs after checking fuel and air cleaner systems, the low idle speed and low idle fuel needle may need adjustment. This should be done when the engine is warm. For high altitudes (above 1525 meters or 5000 ft.), a special high-altitude jet kit may be necessary, installed by an authorized Kohler dealer.
Storage: For storage longer than two months, the engine should be cleaned, the oil and filter changed, and the fuel system either completely emptied or treated with a stabilizer. A tablespoon of engine oil should be added to the spark plug hole, and the engine cranked a few revolutions before reconnecting the spark plug lead. The engine should then be stored in a clean, dry place.
General| Fuel System | Carburetor |
|---|---|
| Cooling System | Air-Cooled |
| Compression Ratio | 8.5:1 |
| Fuel Type | Unleaded Gasoline |
| Bore | 3.5 in |
| Power Output | 14 hp |
| Oil Capacity | 1.5 qt |
| Starter Type | Recoil |
| Engine Type | Single cylinder, 4-stroke, OHV |
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