ORIGINAL: SoCalSal

I'll check it again in the morning. I too looked at the catalog and didn't find the size I need. It may be 5mm but it sure is not 3mm. I ordered a 3mm-4mm #QSML-M-3-4 and a QMSL-m-3-3 both from the Dreamworks web-site but just my luck both were wrong for my applacation. Now 'm out some bucks and have two parts I can't use. I will have to dis-mount the engine so I can get the carb off of it (carb is mounted directly on center of back of engine) So I will do that in the morning and see if I can get a 5mm tap in the hole. If it is 4mm threade end then I will have to order it via the engine maker as it would appear to be a custom made fitting.

I'll let you know what I find out.
Thanks for your help