I have been reading some posts here about fuel pumps, fuel pressure, and vacuum. It seems to me that a smart mechanic would want to know what's going on in their motor, and not just guess, so I'm getting myself a vacuum and fuel pressure gauge.
I realize these are one cylinder engines, and that the use of these gauges may be limited for us, but I'd like to know things like, when the engine bogs out at wot, what is the vacuum pressure and what is the fuel pressure at the time? Also, some reading indicates that a vacuum tester may be able to tell me about my valves. It seems like a useful tool.