ORIGINAL: downdraft2
I just purchased an Evolution 58 and have been having trouble with my engine. The max rpm with a 24-8 prop is 6000, seems like it should be a little more. I have the setting correct too. I have been having other problems and the engine won't idle down and likes to run in reverse. When hand propping about every 4th or 5th start will be reverse. Fuel seems to be dripping from the carb and it is hard to start. I have to crimp the fuel line until it hits to get it running. Anyone else had any trouble like this?? I'm thinking the motor may have low compression for one and a metering adjustment problem allowing fuel to flow too rich while running.
This sounds exactly like the problem I had with my new 58 Pro Sport. I sent it back to MVVS and they said I had the pressure tube connected to the atmospheric vent. I thought, what the *%^$$#? How could it even run with that set-up? Freshly back from MVVS, I fired it up today and it runs superbly - 6500 rpms with a 24X10 Mejlik at a rich setting.
Double check your hose connections, I had fuel dripping out of the carb with the set-up I had before but it would not make it to full power. I fell like an idiot, but this carb simply has too many nipples to chose from! All is good now.. Good luck.