I have recently rebuilt the carb on my McCulloch chain saw. The carb is a ZAMA (Japan made). The saw runs fine for a short while and then quits. Subsequent attempts to restart are futile. The carb seems to be loading up. I notice excessive fuel at the exhaust. Could I have put a gasket in backwards? I have no diagram of the carb or gasket placement to refer to. This carb uses a plastic disk that rides on the needle valve assembly (looks to me like some type of float device). If anyone has a diagram of this carb, I would greatly appreciate a copy of it so I can put this thing together right. Thanks in advance!
If your ZAMA model is M1-M7 e-mail me with an address or fax number and I can send you the diagram. Also, with the complete model number from the McCulloch (the number that starts 6000...) I may be able to provide an illustrated parts list for the entire saw for you.
On Zama M1 (which are used Only on Eager Beaver And Mini Mac chain saws) ther are several precautions to watch for. One is, If you ars not familiar with these type of carburetor (2 cycle in general) allyour effert of disassembling and reassembling willnot solve your problems.The need to be pressure tested,"THEY MUST HOLD PRESSURE"(by the way,that white plastic thing is called a fuel pump body).Also,the fiber washers and plastic sleeves holding the carb/coil to the crankcase,mut be in the right possition. Now you mentioned fuel coming out of the muffler. I`d suggest you take the muffer off and see what condition the piston is in . FOR COMPLETE INSTRUCTIONS,DIAGRAMS OF THE CARB AND THE ENGINE IT`S SELF, GO TO "ITERTEC.COM AND ORDER #CSS-8 CHAINSAW MANUAL." THERE`S MORE TO THESE SMALL ENGINE`S THAN WHAT MEETS THE EYE.
On Zama M1 (which are used Only on Eager Beaver And Mini Mac chain saws) ther are several precautions to watch for. One is, If you ars not familiar with these type of carburetor (2 cycle in general) allyour effert of disassembling and reassembling willnot solve your problems.The need to be pressure tested,"THEY MUST HOLD PRESSURE"(by the way,that white plastic thing is called a fuel pump body).Also,the fiber washers and plastic sleeves holding the carb/coil to the crankcase,mut be in the right possition. Now you mentioned fuel coming out of the muffler. I`d suggest you take the muffer off and see what condition the piston is in . FOR COMPLETE INSTRUCTIONS,DIAGRAMS OF THE CARB AND THE ENGINE IT`S SELF, GO TO "ITERTEC.COM AND ORDER #CSS-8 CHAINSAW MANUAL." THERE`S MORE TO THESE SMALL ENGINE`S THAN WHAT MEETS THE EYE.
