Home › Forum › Ask A Member › maybe i need to check it with a tach? › Re: maybe i need to check it with a tach?
Sounds like the fuel level in the carb bowl is low. I agree on the Sierra carb kits, they cause problems. I won’t use them. I would suggest using an OEM kit that comes with a new float. The same goes for the fuel line, primer bulb, and connectors….. the aftermarket fuel connectors are junk. They usually suck air and won’t connect to the tank or engine snugly. Otherwise, check for a vacume leak, somewhere in the fuel system. this may not show up as a fuel leak, but rather a vacume leak because of a poor connection. maybe you could squeeze the primer bulb while the motor is malfunctioning?
if you happen to be using a fuel line from Wal Mart, I would replace it. Almost every motor that comes through my shop with one of those has a running issue. This is due to the internal ”barrier liner” collapsing, resulting in poor fuel flow. Some of them will be completly plugged. I have one of those in the trash can right now, as a matter of fact. I’ll try and post some pics later today.