Before I started tearing down my 1983 model 318, I noticed that my throttle wasn't very responsive. It worked, but it was kind of rough or somewhat hard to push up when I wanted to accelerate the RPM's, if that makes sense. Now, I notice that with the engine not running, when I move the throttle upward (increasing RPM's, the throttle cable moves or extends the spring, but the governor arm doesn't move. I can move the governor arm by hand, but not with the throttle. Now, keep in mind, the throttle did work when I shut the engine down the last time. What I am seeing now is without the engine running. I saw another post on another forum that talked about this same issue on a 316. They said they thought the ball bearing at the end of the governor shaft was messed up. They went into detail on the process of fixing it, which involves removing the engine, the heads, valves and camshaft. I'm not a mechanic. Is this something that a novice can try to fix without a lot of experience or no? Also, will it make any difference that it was working prior to shutdown and I'm seeing this take place without the engine running? Thanks so much for all the help.