So here's the story.
Last night I cleaned out the carburator on my Batavus Regency that I just got. It ran, but the throttle was stuck, as it seems to keep doing. So, today after I finally got the throttle slide to move alright, I took it for a ride. Success, a perfect running moped, or I thought. As I pulled back into the yard I realized the throttle was stuck open again. I put it up on the stand and immediately the thing rev's up to warp speed, and it was LOUD. I've run it before, and it has never been that loud or such a fast revving. Next, I reach for the kill switch to shut the moped off. But it doesn't shut off. It just keeps going. In fact it continued for about 30 seconds. I flipped the switch twice more and nothing. So, thinking the switch is bad I decided just to pull the spark wire off. Little did I know that the engine had become so hot it was melting the rubber cord, and the cord just slipped right out of the metal end, and rubber joint. In awe, I simply watched the engine smoke for about two more minutes. After it cooled, I checked the spark plug and it was a nice tan color.
So, first, why would a moped rev up so freakin' high, and get so damn hot?
And how do I get the throttle to quit sticking?
I don't know if the switch was bad, it has worked fine before. Or, can a moped engine get so hot it starts a dieseling reaction?
Besides all that, I know it's alot, earlier this week I couldn't get any power out of it. It would just bog down, or go about 10.
Kind of confused,