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Why is my motorcycle getting no spark?
If you are having a no-spark problem, a good place to start after ruling out shorts, grounds, switches and spark plugs, is the ignition coil, spark plug caps and wires. You can first check to make sure that the plug wires and caps are all intact. A breakdown in the insulation can cause arcing in the plug wire.
What controls spark on a motorcycle?
A battery or magneto to supply low voltage current for the spark. Mechanical contact points to control the point of ignition. A rotating cam to operate the contact points. A condenser to reduce arcing across the contact point surfaces.
How do you troubleshoot a motorcycle ignition system?
- Step 1 – Inspect Parts. The first thing that you need to do is take a look at the electrical components of your ignition system.
- Step 2 – Check Fuses. Fuses are supposed to blow so they protect your bike from damage.
- Step 3 – Check the Switch.
- Step 4 – Check for Corrosion.
What causes a no spark?
Loss of spark is caused by anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. This includes worn, fouled or damaged spark plugs, bad plug wires or a cracked distributor cap.
Why is my spark plug not firing?
A spark plug won’t fire properly if its electrodes have been worn thin, if they are covered with combustion deposits or if they’re wet. If the plug has seen many hours of service, the electrodes may just be worn out, and replacing the plug will restore normal engine operation.
What are the symptoms of a bad spark plug?
The most common symptoms of Bad spark plugs are rough idle, rough acceleration, misfires, hard starting condition, poor fuel economy and you will probably experience a Check engine warning light on your dashboard. The Spark plugs are an important part of the engine and it could cause a lot of problems.
Why no power to spark plugs?
A grounded kill switches, faulty spark plug, spark plug cap, pick-up coil, stator, igniter and ignition coil ( you have replaced already) can cause a no spark condition.
How check spark plug firing?
An alternative method to check if a spark plug is firing is to remove the spark plug from the engine. Plug the spark plug on your ignition coil. Ground the threaded part of the spark plug to the engine block. Crank the engine and see if you are noticing any spark at the spark plug tip.