:bang: HELP, I just completed a top end rebuild and fired it up, I didnt run it past start up /short run/ and die, but hear it running as flat as before. NOW suspect timing as problem, Does anyone out there know of a good shop manual on this "trouble shoot" engine problems for 1972 yamaha ct 2 175 cc, My HAYNES manual esta no bueno por caca as they say,,,,,,,,,,thanks , jim