Simson magneto

Types of Simson Magneto

The Simson magneto is an essential part of the ignition system in many Simson motorcycles and mopeds. It generates a high-voltage spark to ignite the air-fuel mixture in the engine's combustion chamber. The Simson magneto consists of permanent magnets, coils of wire, and an iron core. When the rotor spins, the magnets create a changing magnetic field around the coils. This change induces an electric current in the coils due to Faraday's law of induction. Depending on the model, the Simson magneto has different types.

• Simson magnum magneto: The Simson magneto is a low-voltage ignition system. It is perfect for engines with a simple design. The magneto generates a low voltage and uses an ignition coil to boost the voltage before reaching the spark plug.
• Simson super magneto: The Simson super magneto is a high-voltage ignition system. It directly generates a high voltage at the spark plug. The super magneto is suitable for high-performance engines. They ensure a consistent spark for a better air-fuel mixture.
• Simson magneto with electric starter: This type of Simson magneto combines traditional magneto ignition with an electric starter. The magneto generates current for ignition when pedaled or during electric motor activation. It is commonly used in modern Simson vehicles.
• Alfano Simson magneto: The Alfano Simson magneto is a specialized ignition system used in racing and high-performance Simson vehicles. The Alfano Simson magneto is lightweight and has a compact design. It ensures precise timing of the ignition spark, which is critical for competitive racing.
• Simson S51, S53, S54, S61, and S70 magnetos: These are specific models of Simson magnetos designed for different vehicle models. Each magneto is tailored to the specifications and requirements of the respective vehicle model, ensuring optimal ignition performance.

Specifications and maintenance of Simson Magneto

The following are the specifications and maintenance requirements of the Simson Magneto.

• Specifications

  The Simson Magneto is a magneto ignition system used in Simson motorcycles and mopeds. Key features include:

  1. The rotor and stator of the Simson Magneto are made of high-quality permanent magnets. The magnets are robust and corrosion-resistant, ensuring consistent and reliable spark generation.

  2. The Simson Magneto has a 6V or 12V electrical output, depending on the model.

  3. The ignition coils in the Simson Magneto have a single coil design. The coil is made of copper wire and has a low resistance.

  4. The Simson Magneto has a charging capacity of 30W to 60W.

  5. The rotor of the Simson Magneto has a diameter of 90mm to 120mm, while the stator has a diameter of 80mm to 100mm.

  6. The ignition timing of the Simson Magneto is adjustable, allowing for fine-tuning to optimize performance.

  7. The Simson Magneto uses standard ignition plugs with a gap of 0.6mm to 0.8mm.

  8. The puller thread of the Simson Magneto is M18 x 1.5, and the torque specification for the rotor bolt is 25Nm to 35Nm.

• Maintenance requirements

  1. Regular cleaning is essential to remove dirt, oil, and debris from the rotor, stator, and ignition coils.

  2. The rotor and stator air gaps should be checked regularly and adjusted if necessary to ensure the air gap is 0.1mm to 0.3mm.

  3. The ignition timing should be checked regularly and adjusted if necessary using a timing light to ensure it is within the recommended specifications.

  4. The ignition coil resistance should be measured using a multimeter to ensure it is within the recommended specifications.

  5. The rotor bolt and stator bolts should be checked regularly to ensure they are tightened to the recommended torque specifications.

  6. The capacitor and points gap should be checked and adjusted if necessary to ensure they are within the specified range.

  7. The spark plug should be checked regularly for wear and replaced if necessary to ensure it is within the specified gap.

  8. The wiring harness and connections should be checked regularly for damage or corrosion and repaired or replaced if necessary.

  9. The bearing and seal should be checked every time the magneto is opened and replaced if damaged.

  10. The rotor, stator, and ignition coils should be inspected every three to six months for signs of wear, corrosion, or damage.

  11. The rotor, stator, and ignition coils should be replaced every three to five years, depending on the model and usage.

  12. The cleaning should be done every 3000 km or every six months, whichever comes first.

  13. The air gap, timing, resistance, torque, points gap, and spark plug gap should be checked every 3000 km or every six months, whichever comes first.

  14. The wiring harness and connections, bearing, and seal should be inspected annually or every 10000 km.

  15. The rotor, stator, and ignition coils should be replaced every five years or every 15000 km, whichever comes first.

How to Choose Simson Magneto

When choosing a Simson magneto for resale, consider the following:

• Magneto Type: Each Simson model has specified magneto types. Decide whether to stock up on points or electronic ignition magnetos. The former requires manual point adjustment, while the latter is more accurate and less maintenance-demanding.
• Voltage and Output: Consider the engine's needs when choosing a magneto. A high-output magneto produces a stronger spark, which is ideal for modified or high-performance engines. However, this can be overkill for standard or low-performance engines.
• Condition: New Simson magnetos are more expensive than used ones. Used ones should be checked for wear, corrosion, and damage. Also, their coils and bearings should be tested to ensure they are in good condition.
• Compatibility: Make sure the magneto is compatible with Simson vehicles. This will be based on the model and year. A compatible magneto ensures optimal performance and reduces the risk of engine damage.
• Quality: When choosing a Simson magneto for resale, it is important to choose quality ones. Quality magnetos provide consistent spark and ignition timing, increasing engine performance and reliability.
• Price: Resellers should consider the cost of the magneto and the potential resale value. The magnetos should be priced competitively.
• Seller Reputation: The seller should have a good reputation. This will ensure the quality of the magnetos and their timely delivery.

How to DIY and Replace Simson Magneto

Replacing a Simson magneto can be a simple task that can be accomplished with basic mechanical skills. Follow this simple step-by-step guide on how to replace a Simson magneto:

Tools and materials needed:

• New Simson magneto
• 9.1 mm socket wrench
• 10 mm socket wrench
• Torx screwdriver
• Phillips screwdriver
• Flathead screwdriver
• Torque wrench
• Lubricant
• Cleaning rag

Step-by-step guide:

• 1. Preparation

  Turn off the Simson bike and make sure it is in neutral. Disconnect the battery terminals, starting with the negative side to avoid short circuits. Gather all the necessary tools and new Simson magneto before starting the replacement.

• 2. Remove the casing

  Use a 9.1 mm socket wrench to remove the screws on the left side casing and carefully lift it off. Next, use a 10 mm socket wrench to remove the screws on the right side casing and carefully lift it off. This will give access to the old magneto that needs to be replaced.

• 3. Disconnect the old magneto

  Use a flathead screwdriver to loosen the screws holding the ignition coil wires and disconnect them from the old magneto. Disconnect the kill switch wire by removing the screws holding it in place using a Phillips screwdriver. Use a Torx screwdriver to remove the bolts holding the old magneto in place and carefully lift it off.

• 4. Install the new magneto

  Carefully place the new Simson magneto in its housing and tighten the bolts holding it in place using a Torx screwdriver. Reconnect the ignition coil wires by tightening the screws using a flathead screwdriver and reconnect the kill switch wire.

• 5. Reassemble the casing

  Put the right side casing back and tighten the screws using a 10 mm socket wrench. Apply some lubricant on the O-rings and carefully place the left side casing back and tighten the screws using a 9.1 mm socket wrench.

Perform a quick magneto test by reconnecting the battery terminals, starting with the positive side, and turning on the bike to ensure it runs smoothly. The replacement process is complete.

Q&A

Q1: What is a Magneto used for?

A1: A magneto is an electrical generator that uses permanent magnets to produce a controlled flow of electric current. It is used in internal combustion engines to generate electric current to power the spark plugs and ignite the fuel-air mixture.

Q2: What are the parts of a Magneto and their functions?

A2: The parts of a magneto include the rotor, stator, ignition coil, and distributor. The rotor and stator work together to create a magnetic field that generates current. The ignition coil boosts the current, and the distributor directs the current to the appropriate spark plug.

Q3: Does a magneto require a battery?

A3: No, a magneto does not require a battery. It generates its own electric current through the mechanical energy provided by the engine.

Q4: Why is it called a magneto?

A4: It is called a magneto because it uses permanent magnets to generate electrical current.

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