How do I test a CDI with a multimeter?
Ensure you multimeter read DC volts and it is set within the range of 250. Clamp the black probe of your multimeter to the ground and then test in turns the yellow and pink wires by pressing the probe at the end of the cables. While doing this, you should try to crank your bike for some few seconds.
How do I test my snowmobile CDI?
Check the stator A multimeter can help you to identify a faulty stator. Set a multimeter to ohms reading and use it to test the three tabs of the stator. Test only two points of the tabs at a time. If all the three terminal tabs have a resistance below 1 ohm, it means the stator is probably in good condition.
How to check ignition coil and CDI testing?
Check the red wire on the stator. (it feeds the CDI) Set meter to AC and crank engine…should get 60+ volts…although I have seen them put out as low as 30 and still run. Also check kill switch by removing black wire that comes from the CDI.
Why is my CDI not grounding the coil?
If you have 12v on NEITHER terminal, then power is not getting to the coil. If you have 12v on one and not on the other, there are two possibilities… open primary, or the CDI is grounding the coil. Disconnect the wire on the “dead” terminal and see if you get 12v. If not, the coil primary is open.
How does a ground ESP work on a CDI?
Opening up the connections between these outputs and the CDI unit accomplishes the same thing, I would prefer shorting to ground esp., for the low level signal from the trigger output,a long lead would be connected to the CDI trigger input and a spurious signal could conceivably blow up the input device.
How does the spark timing on a CDI work?
The spark timing is controlled by a small trigger coil located in close proximity to the flywheel which generates a low voltage pulse (actually two, a positive and a negative one), as the fly wheel magnet passes by.
Check the red wire on the stator. (it feeds the CDI) Set meter to AC and crank engine…should get 60+ volts…although I have seen them put out as low as 30 and still run. Also check kill switch by removing black wire that comes from the CDI.
Opening up the connections between these outputs and the CDI unit accomplishes the same thing, I would prefer shorting to ground esp., for the low level signal from the trigger output,a long lead would be connected to the CDI trigger input and a spurious signal could conceivably blow up the input device.
How does a CDI ignition system work on a bike?
The keyway on the magnet is offset to the poles of the magnet. Maybe putting it on backwards cause the sparkplug to spark somewhere other than close to top dead center of the piston. I pulled the magnet off, turned it around and put it back on. EUREKA! Bike fired right up and runs like a dream.
The spark timing is controlled by a small trigger coil located in close proximity to the flywheel which generates a low voltage pulse (actually two, a positive and a negative one), as the fly wheel magnet passes by.