I got a 1993 blaster had it out a week ago and it ran great all day. Just the other day i tried to start it and nothing so i pulled the plug put a new one in fired up first kick, then ill shut it down try again in like ten minutes and nothing. Put another new plug in or clean the old one and again fires right up. The spark seem's a little weak seem's like whenever the plug gets a little dirty the sparks not strong enough to get it to fire. Im getting great charge from my stator so im wondering if my coil is almost shot or could it be my cdi? Any help would be greatly appreciated! Thanks