Section 6.4

ENGINE IGNITION SYSTEM

IGNITION MODULE (CONTINUED)

Figure 4. Ignition Module

IGNITION COIL

Clean the Spark Plug and reset its gap to 0.030 inch (0.76mm) every 100 hours of operation. Clean by scraping or wire brushing and washing with commer- cial solvent. DO NOT blast clean the spark plug.

SUMMARY OF OPERATION

See Figure 6. As the generator's permanent magnet rotor turns, magnets in the Rotor hub's Ignition Cage rotate past an Ignition Sensor at fixed intervals.

Battery voltage is delivered to an Ignition Module dur- ing cranking and running, via Wire 14. From the Ignition Module, battery voltage is also delivered to the Ignition Sensor via the RED (+) lead. The Ignition Sensor acts as a "trigger" mechanism, causing the Ignition Module to deliver its output to the Ignition Coil at timed intervals. Current flows through the primary coil of the Ignition Coil and then collapses to induce a high voltage into the Ignition Coil's secondary coil. This high voltage (about 25,000 volts) is delivered to the park Plug to fire the spark plug gap.

Primary ignition voltage (12 VDC) is delivered from the Ignition Module to the Ignition Coil. The Coil boosts the voltage and delivers the high voltage to the engine Spark Plug.

Components encapsulated in the Ignition Module pro- vide an automatic spark advance. At cranking speeds, ignition will occur at about 15'-18' BTDC. At higher speeds, ignition can occur up to 29° BTDC.

Figure 5. Ignition Coil

SPARK PLUG

The Spark Plug on the GV-220 engine is a Champion RC12YC (or equivalent).

Figure 7. Ignition System Diagram

IGNITION TIMING

Ignition timing is fixed and non-adjustable.

Figure 6. Setting Spark Plug Gap

TESTING THE SYSTEM

GENERAL:

Solid state components inside the Ignition Sensor, Ignition Module and Ignition Coil are not accessible and cannot be serviced. If any of these components is defective, the entire component must be replaced. The system does not include an armature and there is no air gap to adjust, or breaker points to adjust or replace.

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Generac Power Systems 940-2, 941-2 Ignition Coil, Summary of Operation, Spark Plug, Ignition Timing, Testing the System
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941-2, 940-2 specifications

Generac Power Systems has established a strong reputation in the field of backup power solutions, particularly with its innovative products like the Generac 940-2 and 941-2 generator systems. These generators are designed to provide reliable power during emergencies, ensuring that homes and businesses can maintain operations seamlessly when grid power is disrupted.

One of the standout features of the Generac 940-2 and 941-2 models is their robust engine performance. Both generators utilize Generac’s patented engines, known for their durability and efficiency. These engines are built to withstand the most demanding conditions while providing a consistent power output. This reliability is crucial for users who depend on uninterrupted power supply for essential appliances and equipment.

In terms of technologies, the Generac 940-2 and 941-2 are equipped with advanced automatic transfer switch capabilities. This technology allows the generators to automatically start and supply power within seconds of an outage. This quick response time helps to ensure that critical systems remain operational without noticeable interruptions, which is vital for businesses and households alike.

Another important characteristic of these models is their user-friendly interface. The generators come with an intuitive digital controller that provides real-time information on power usage, system status, and maintenance needs. This technology makes it easy for users to monitor their generators and ensure they are always ready for an emergency.

The design of the Generac 940-2 and 941-2 also emphasizes noise reduction and aesthetic appeal. These units are engineered for quieter operation compared to traditional generators, making them suitable for residential areas. Their sleek appearance also fits well with modern home exteriors, enhancing rather than detracting from the property’s visual appeal.

Furthermore, these generators offer flexible fuel options, with the ability to run on natural gas or propane. This versatility allows users to choose the fuel source that best meets their needs, contributing to energy efficiency and lowering overall operating costs.

In summary, the Generac Power Systems 940-2 and 941-2 are exceptional generators that combine powerful performance with innovative technologies. Their automatic transfer switch capabilities, user-friendly controls, noise reduction features, and flexible fuel options make them an excellent choice for anyone seeking reliable backup power solutions. With these generators, users can rest assured knowing they have a dependable energy source ready when they need it most.
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