
CDI Testing with a multimeter - Motored Bikes
Jul 2, 2016 · I thought a good thread would be to how to test a CDI & Magneto with a multimeter. I know I currently have the issue of a potential CDI or Magneto that could be bad. For the …
how do you test a cdi and coil? - Polaris ATV Forum
May 20, 2010 · You cannot test the CDI. You can check the coil though. Use an ohmmeter to check continuity between the coil ground as well as the ignition wire. Resistance should be …
xplorer 300 no spark - Polaris ATV Forum
Oct 26, 2020 · Crank trigger and CDI charging coil is all the same thing - part of the stator - your ignition system consists of the stator, flywheel, CDI box and coil - if you want to know which …
sportsman 90 wiring problem | Page 4 | Polaris ATV Forum
Oct 16, 2025 · Step by step just as I instructed - unplug the blk/wht wire from the CDI box and check continuity - you can go from the blk/wht wire directly to ground (battery neg) with the key …
Sportsman 500 "No Spark" - Polaris ATV Forum
Apr 20, 2020 · If the spark is timed, but weak it's either a bad CDI box, coil or perhaps a poor ground connection somewhere. I have those fuse blocks and wire terminals in stock - $30 and …
2001 500HO SPTMN CDI testing - Polaris ATV Forum
Jul 22, 2012 · Does anyone know how to test the CDI box on this machine? Thanks Is it a part that goes bad?
99 Sportsman 500 - no spark - some diagnostic tests done...
Jun 3, 2013 · So far, I've changed the plug, checked plug wire, checked all wiring for damage, disconnected black wire from cdi box to check for faulty kill switch, and took a few …
Cdi change out - Polaris ATV Forum
Mar 26, 2022 · The trigger tells the box to fire, the box determines when to fire which coil with the capacitors, and zap goes the spark plug, ad infinitum. How do I know if my CDI box is bad on …
Scrambler 500 no spark - Polaris ATV Forum
May 25, 2020 · To check the stator or CDI box requires a peak voltage tester - if it gets one spark, the charge coil did something and the pulse coil told it to fire, but the charge coil (red and …
2008 Sportsman 90 CDI Box Options- and are they AC or DC?
Jan 2, 2024 · Check for 12v on the brown wire of the CDI box 2 wire plug Do not check BN to DB - check brown to ground with all switches in the run position. If there is 12v on the brn wire …