I could not figure out why my G-38 was acting up when it always ran perfect!!! Had a dead stick and it woud not start. I pulled the cowl off and was checking the fuel lines. I then noticed the plug in the crank case was missing. It looks like 10mm is it pipe thread. I have a 10mm bolt in iot right now but I did not want to over tighten it. Can I get a plug any where that will fit it. Lucky find and a nice safe dead stick1