Check the vent screw on the top of your gas can. Make sure it is open when motor is running. Possible problems are a bad fuel pump diaphram or a bad primer bulb. Verify all fuel connections are tight. If you keep pumping the primer bulb do you see gas leaking from any of the carbs?
i have a permanent installed tank. is there a vent screw on it? the primer ball is new but it was purchased at wal mart. i heard they have problems with some of them. the fuel pump is about 2 years old. no fuel leaks that i can see.
Randy,<br /><br />I have an '84 force 125. I've been mixing 50 to one with no issues. <br /><br />Do not run that motor without mixing, you'll kill the power head in no time at all!