So, I just purchased a Doodle Bug game. My first entrance into EM machines, so a total noob. The game needed a lot of cleaning/restoration, but the game itself seems to be working fairly well...except the doodle bug itself. Like the original poster, if I hold in the center target, it doodles along wonderfully. But of course, that's not what it is supposed to do. I tried to clean the contacts in the 2 relays discussed above, but still no luck. My stop relay seems to be working properly as in the pic above, so not sure what else to try. Any suggestions?

Thanks, I will try to trace all those down...after I fix a new problem. Fired the game up to check on some of this, and my 10 scoring wheel has something going on, there seems to be a coil stuck on somewhere that is making the reel vibrate and create a loud buzzing noise. Welcome to EM I guess!