I just got my first moped. a 1981 jawa x25. I am looking for the service manual and owners manual for this. Also, any good parts suppliers? so far, Ive had to flush the tank, and chisel the rust out of the petcock, and make a gasket for said unit (this stopped the fuel leaking out the petcock) Now, Its onto the leaking carb (which I think was my fault for opening up the float bowl to empty it) Anyone know if a carb kit is available? It does run though! And runs pretty good for having a full tank of non stabilized fuel in it for 17 years. Lastly, top speed is only 20mph. I have the carb adjusted right, and am running the right mix, only thing I can think of is, the engine is getting up there in age....ODO says 975 miles. Any thoughts would be great.