Hi guys,I want to ask is there any different threaded glow plug for 2 stroke glow engines?I mean,when I decide to change my OS 8 glow plug on my TT 42 GP engine with a Fox idle bar glow plug,in order to improve idling of my invert engine application,I feel I cant screw it manually after 1.5 -2 turns into engine head.I have to use wrench to screw it down totally and tighten.But when I try OS plug,I can screw it totally by hand until need tighten.I m sure I didnt make it wrong to eat head threads but I wonder if it could be different type glow plug thread that I forced it down.Can anybody have an answer?
Thanks