Here's a dumb newbie engine problem for you all: I noticed at the field, as I starting the engine for the 4th flight of the day that the carb seemed to be sort of jumping up and down. Well I did the reasonable thing and shut the engine down (as opposed to just going ahead and flying with a what-the-heck attitude). Anyway, both of the carb retaining bolts were missing. They had apparently vibrated loose in flight. I suppose the only thing holding the carb on was the throttle linkage!

Anyway, back at the LHS (which didn't happen to have replacement bolts) the guys informed me that I really should have used blue lock-tite on these bolts. Live and learn.