I just dealt with this problem on a motorcycle. I ended up taking it to the service department of a local dealer. They are equipped to run CDI tests; any reputable service/dealer will be honest with the diagnosis.
No.
the only way to test a cdi is to repalce it. There is no other diagnostic for a cdi box
There are seven steps on how to check the CDI and the starter on a 200cc ATV. Some of the step-by-step instructions are turn the ATV off, use a voltmeter to get a reading on the battery, and then touch the black wire from your voltmeter to the black terminal on the battery.
first check your spark plug then test your ignition coil if these are good then it is probably the cdi but there is no way to test a cdi box.
You can not remove it, but you can change out the CDI box. http://www.magnumtuning.com/en/detail/revolution-pro-atv-speed-rev-limiter-cdi-box/john-deere/gator-xuv620efi/atv
the cdi is the igniton controll. this tells the engine certan things such as when to limit rpm and when to fire the spark along with the flywheel. some aftermarket companies make aftermarket cdi's that have a raised rev limit and a diffrent ignition map
tap on it with something then try starting it if it starts its the cdi box
one of 3 things bad coil, pickup, or cdi
Check ur spark plug and if none of them are firing the its ur cdi box
there is really only one way to test your cdi and that is swapping it with one that you know works and trying it.
check te spark plug and if that isn't it and if ur motor isntblown its ur cdi box
I believe it is a clone engine of the Suzuki gn 250 motorcycle! Cdi units on the gn 250 and the xtreme 300 atv r identical!see for yourself! Check a picture and specs of a 1985 Suzuki gn 250 motorcycle!