84 200es big red
 

hasn't been run in a year and a half, changed gas cleaned tank out, charged battery, it started right up. I drove it around for a few minutes. tried starting it later and it won't. charged battery, even got a new one, still won't start. checked spark and it only sparks when it wants to(rarely) doesn't seem to matter if key is on or off. any ideas.

84 200es big red
 

try a new spark plug

84 200es big red
 

yeah i forgot to mention i already did that

84 200es big red
 

https://img382.imageshack.us/img382/3041/200ign2pg4.jpg
https://img178.imageshack.us/img178/5512/200ign4hf1.jpg

84 200es big red
 

thanks, where did the pics come from?

84 200es big red
 

From the 1984 Honda ATC200ES PDF shop manual ..

84 200es big red
 

i own 2 of these exact machines. I have had a cdi box go bad on both of them. I was lucky though since i could swap parts until i found out what was wrong. If all of the test honda mechanic posted check out ok, then it is your cdi box. There is not any way to test a cdi box except by replacing it with a known good one.