"I have a 1980 Peugeot moped, which runs great except that when you start it, for the first 20 seconds or so, giving it throttle actually makes the engine lose rpm's. When I first got the bike a year ago it did not do this. I think it may be the carburetor. I'm not sure how to clean it. Any input would be greatly appreciated. Thank you.<p>Also if anyone knows where I can get a speedometer cable for a Peugeot that would be great. I can't find one anywhere. A speedometer itself would be nice too but these seem impossible to find, so I'll settle for one from a different bike, but I still need the cable!!!!<p>Thanks again<br>"