Table of Contents
How do you tell if a flywheel magnets are getting bad?
Be sure the magnet you are testing is rotated away from the magneto when testing takes place. Hold the screwdriver against the magnet, if the magnet pulls the screwdriver in, the magnet is fine. If it seems weak or does not pull the screwdriver in, the magnet needs to be replaced.
Can flywheel magnets go bad?
yes the magnet in the flywheel could be weak.
How do you rejuvenate a magnet?
A magnet can be re-magnetized by rubbing a neodymium pole, for example, against the opposite pole of the old magnet, thus repeating with the other side and achieving the desired effect.
Can magnets be recharged?
Magnets that have lost their strength Sometimes you can recharge a magnet that has lost some of its original charge. If you can find a very strong magnet, repeatedly rub it across your weakened magnet. The strong magnet will realign the magnetic domains inside the weakened magnet [source: Luminaltech].
Should magneto touch flywheel?
The magneto should not touch the flywheel. In fact, you have to adjust the gap between the coil and flywheel magnets so that the flywheel magnet lines up directly with the magnetic coil and feeler gauge tool.
Can a dirty flywheel cause no spark?
Rust on the flywheel won’t cause a no-spark problem.
Can a flywheel go bad on a chainsaw?
It is not common for a flywheel to go bad, the only one I have ever changed was on a Harley where the magnets came unglued. If a screwdriver or wrench sticks to it good it should be fine. You can try disconnecting the kill switch to try and see if it is faulty or the kill wire has the insulation chafed off or pinched.
Can you’re magnetize a flywheel?
-We can remagentize 2, 4, and 6 pole flywheels. -External flywheels from 92-130 mm (3.6-5.11 inches). -Internal flywheels from 63-100 mm (2.48-3.94 inches).
Is a rusty flywheel a problem?
Conventional thinking is that when there’s rust on the flywheel, it gets in the way of the spark. All you have to do is clean the flywheel, and you’ll be up and running. Experts have debunked that theory, though, saying that rust has no impact whatsoever on a magnetic field.
How many magnets are on a flywheel?
There is only one magnet in the flywheel. The other piece of steel is a counterbalance and may have only picked up some residual magnetism. If you’ve got strong magnetism in the one piece, your flywheel is good.
How do you know if your flywheel needs changing?
If your flywheel is going bad, a smooth pedal is not what you will feel. You may feel vibration as soon as you place your foot on the clutch or when you press down on the clutch. The vibration tends to get stronger as you push on or engage the clutch pedal.
What makes a flywheel go bad?
It’s happens more often in higher gears and when you push down the accelerator pedal more than just a little bit. This is often a direct result of a clutch that’s worn out. Allowing the clutch to slip will eventually cause the flywheel to wear out as well.
Why has my magnets stopped working?
As the temperature increases, at a certain point called the Curie temperature, a magnet will lose its strength completely. Not only will a material lose its magnetism, it will no longer be attracted to magnets. In general, heat is the factor that has the most effect on permanent magnets.
Why would a magnet stop working?
If a magnet is exposed to high temperatures, the delicate balance between temperature and magnetic domains is destabilized. At around 80 °C, a magnet will lose its magnetism and it will become demagnetized permanently if exposed to this temperature for a period, or if heated above their Curie temperature.
Do magnets lose strength?
Demagnetisation is a slow process but magnets can lose their strength over time. This generally happens in two ways. So-called permanent magnets are constructed from materials made up of magnetic domains, in which atoms have electrons whose spins are aligned with each other.
How long do magnets last?
Your permanent magnet should lose no more than 1% of its magnetic strength over a period of 100 years provided it is specified and cared for properly. There are a few things that may cause your magnet to lose its strength: HEAT.
How do you test a magneto?
Do not use auto ranging, as it is unreliable with a magneto. Touch one probe tip to the engine block and the other to the metal clip inside the rubber casing which normally attaches to the spark plug. Readings are given in thousands of ohms, or “k” ohms. A good reading will range from 3 k to 15 k.
How far should the magneto be from the flywheel?
010-inches or between . 010 and . 014-inches. Rotate the flywheel so that the flywheel magnets line up directly with the magnetic coil and filler gauge tool.
How many volts does a magneto put out?
The voltage generated by a magneto is 50 volts. The coil increases this to 15,000 volts.
