Re: 1967 johnson ignition
Bailey.... I have no idea what you're referring to when you say "Starter Lever" but the numbers for the roller and the follower are:<br /><br />Roller - 305232 - Still available<br /><br />Cam Follower - 310001 - Unavailable since 1996. This is the longer white nylon lever.<br /><br />Frankly I don't think it matters if there's a flat spot as long as you can adjust the synchronization properly. The throttle butterfly should just start to open when the scribe mark on the metal cam is lined up with the vertical white nylon portion of the cam follower.<br /><br />If the butterfly opens too soon, the engine will spit back at idle with the same symptoms as a carburetor being set too lean.<br /><br />If the synchronization is okay and the following adjustment procedure doesn't help, it's possible that you may have overlooked something within the carburetor.<br /><br />(Carburetor Adjustment - Single S/S Adjustable Needle Valve)<br /><br />Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.<br />Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.<br /> <br />Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting. <br /><br />When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.
