Well, I finally figured out what the heck size Allen wrench to use on the head and muffler bolts (screws) on my Brodak engines! I imagine this is not any revelation to many who have these engines but I just discovered that it takes a 2.5mm Allen wrench to fit the darn bolt heads correctly. I have, maybe, 6 sets of Allen wrenches three of which are metric. None of the metric sets included a 2.5mm wrench so, not being familiar with the metric set up, I didn't know that a 2.5mm wrench existed. My son gave me a set of metric allen wrenches this past Christmas which did contain a 2.5. Just got around to trying it yesterday and it worked!
As I mentioned, this probably isn't news to most but, in the past, I have ask a number of people who have Brodak engines and no one seemed to know. Just didn't ask the right people, I guess.
Regards,
Joe