need help here no spark

i really dont know whats wrong w/ my engine, i'd replace the magneto, cdi, sparkplug,. but it doesnt help. still no spark coming out, i check the magneto using multitester and found out that magneto is good, the only problem is the cdi i really dont know how to check it .I'd remove the sparkplug and i plug it to the high tension wire from cdi to see if theres a spark bridging but i cant see, my gap is .030
the air and fuel mixture is good , is there any electrical related that i need to check aside from magneto, cdi, sparkplug, by the way i also check the killswitch its good

Generally speaking, if the mag is good, suspect the sparkplug and/ or sparkplug wire.
The CDI's are relatively bulletproof and more expensive to replace than a plug or wire.
BTW the wire just screws onto a metal screw inside the CDI unit.
Rule out the cheap stuff first.

Also check your wire connections and kill switch

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I'd double check that the wire is screwed into the CDI and that the end of the spark plug wire is connecting with the cap. By pass the kill switch temporarily.

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