Hello All,
I got a used late model 1970's bf 75 was told it ran but it doesn't. It seems to have good compression. I took the carb off and cleaned it really well. I get fuel in the bowl but when I pull the cord gas doesn't seem to be available. The plugs don't get wet and there is no fuel going into the intake? I took off the fuel pump it seems to operate (the cam button moves freely) but don't know how to check it. I cleaned the fuel filter too. I pulled the tube from the pump to the carb and pumped the bulb and fuel flowed easily. I'm not sure what else to do any ideas would be great.
The motor also has no spark. From what I can see the timing was off. I set the punch mark aligned with the T mark on the flywheel. Still no spark so I checked the primary coil and checked out fine with book. Next I checked the secondary coil (with spark plug wires) and the meter would spike to about 17 for just a second and then go to 0. I also checked the rectifier by the book and it is also bad. The coil and rectifier have been discontinued. Does anyone know of options for these parts other then the used route? I have been looking for used parts without success so far. Are these motors trash since the parts are discontinued?
Thanks in advance!
I got a used late model 1970's bf 75 was told it ran but it doesn't. It seems to have good compression. I took the carb off and cleaned it really well. I get fuel in the bowl but when I pull the cord gas doesn't seem to be available. The plugs don't get wet and there is no fuel going into the intake? I took off the fuel pump it seems to operate (the cam button moves freely) but don't know how to check it. I cleaned the fuel filter too. I pulled the tube from the pump to the carb and pumped the bulb and fuel flowed easily. I'm not sure what else to do any ideas would be great.
The motor also has no spark. From what I can see the timing was off. I set the punch mark aligned with the T mark on the flywheel. Still no spark so I checked the primary coil and checked out fine with book. Next I checked the secondary coil (with spark plug wires) and the meter would spike to about 17 for just a second and then go to 0. I also checked the rectifier by the book and it is also bad. The coil and rectifier have been discontinued. Does anyone know of options for these parts other then the used route? I have been looking for used parts without success so far. Are these motors trash since the parts are discontinued?
Thanks in advance!