Try bolting on the new carb without the intake box, if it fires up then the extra pathways are your problemOn the filter side of the carburetor, The newer carburetor has an extra hole that gets covered up with the gasket.
Try bolting on the new carb without the intake box, if it fires up then the extra pathways are your problem
No worries, not all is lost yet. Take the cover off the side opposite the primer and compare the diaphragm and needle. Place both carbs side side on a nice white towel or paper towel so you don't lose any of the little parts. You can then swap the new diaphragm and needle for the old ones on the OE carb.I just tried this. The only way I could get it to kick over is if I have the return line on the bottom, The fuel filter line on the top nipple. Again it kicks over doesn't start. I'm pretty sure I ordered the right carburetor but it didn't come in the package it showed on Amazon It came and plastic I'm going to order another one. Going to try and get the stock carb
Unfortunately there are many versions. The Zama is a repop version of the Walbro. The one the OP bought is a repop of the Zama and is unbranded. It has an extra breather hole that the Zama doesn't have.Both sides of a
Mantis 7920 carb.
Have new carb coming but Switched out the diaphragms, pretty much the whole bottom cover and the whole top cover between two carburetors and used the original OEM carburetor. Here's a picture of the old diaphragmNo worries, not all is lost yet. Take the cover off the side opposite the primer and compare the diaphragm and needle. Place both carbs side side on a nice white towel or paper towel so you don't lose any of the little parts. You can then swap the new diaphragm and needle for the old ones on the OE carb.
Does the OE carb (Zama) pump fuel with the bulb? Just push down on the bulb gently and check for any tiny crack in