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Okay so here's the deal I really need some help I got the quad from my buddy he had the head redone because of smoke it was either two things rings or valves so all that looks good I got the exhaust valve and intake valve to spec with the rocker arms then I had made sure cam was in TDC it lined up in spec then I was trying to start it up for the first day it started but ran like s*** then I had the next day recharge the battery and tried to start it again still run like s*** but I was just curious if it ran so I was thinking it was taking too long to start up so I clean carburetor today and retried to start it up and the only electrical part that was disconnected was the ground to the reverse gear controller so that I could take off the throttle then I pulled the spark plug out to check to see if I had spark the last 2 days I had spark cuz I pulled the spark plug out and seen it but today when I went to clean the carburetor out I accidentally left the battery on on all night and now I have no spark at all I pulled off the spark plug boot the screw thang and put my hand on the spark plug wire as I turned it over with the starter by the way the starter runs great now but zero electricity I'm just wondering how do I test my coil what is the resistance/ohm's it needs to be inspect I can't find it nowhere and how do I eliminate the fact if it's the stator somebody says something about a CDI and I seen a form saying if I unplug the voltage regulator your spark plug might spark again but I clean most of the connections I still have no spark

i have a 1993 timberwolf yamaha and the compression is good and lights work but for some reason the electricity is not going to the spark plug(s)! i got a friend to check it out and they said its no use but im not giving up! please help with this!

It was running well one day, and then the next it just wouldn't start (It has been very cold while trying to start it). I checked spark, it was meh, so I replaced it. After that it got blue spark. Still won't start. Cleaned out the carb (It was quite bad), still wouldn't start. Bought a new carb, put it on, still won't start. Gas is getting to the carb and the plug is dry. It's got compression (Not measured, just put hand in front of exhaust), spark, and gas. It'll start for a second it I put gas in the plug hole, but then I'm back to a dry plug. Any ideas on why it won't start?