Hello
I received my FTL 45 gas engine from United hobbies. It came without a spark plug or wrench. My question is what spark plug do I use with this engine. Something from Champion or NKG that would be available in the US. Ordered a plug from United hobbies they want five dollars plus shipping so I need to find a plug available here. The instruction manual with this plane is a total waste there are no instructions with the electronic ignition. I e-mail them several times have yet to get an answer to the question. I am putting the engine in a Pitts special 33% from RC guys. A plane and engine for $500 is cheap but there are some penalties to pay. I hope this engine runs as good as it looks. Many thanks in advance for any of advice and words of wisdom

Bob G.