I went to tune up my engine, changed out the dist., rotor, and plugs. Put a timing light on the engine and it read 16 deg. BTDC the manual said it should be set to 8 deg BTDC. So I adjusted it to 8 deg. There wasn't any noticeable differance except it seemed to idle faster at 16 deg. (original setting) maybe a little smoother. Anyway I've taken her out a couple of times and can't really find any difference. I stopped by a boat shop and inquired and they said that you have to set base timing first before timing this engine. It has the thunderbolt V ignition. He said I would need a special tool to do this? Anyway Is this right? do I have to set the base timing and is the current set up wrong? Thanks,
