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Hey guys, so I just wanted to update u on my situation. Finally I found out what was going on. So the carb that I ordered turned out to be defected. The mixture screw was not adjusting correctly. You would keep turning it either direction and nothing was changing the engine performance...
This is the carburetor. And the picture with that adjustment screw, that's the screw that my old carb did not have in that spot. Also a picture of the antisiphon valve
You are right. I thought that right away also. Just sounds like the fuel supply gets cut off somewhere or gets to much fuel meaning to rich. Spark plugs look black so I know its running to rich. Everything was original on this motor before I started to do maintenance on it. So the antisiphon...
I could that test and see if it's functioning probably and the needle is not getting stuck. I'm gonna take the carb off later on today and see what happens. When u mean attaching a clean hose to the inlet do u mean where thr gas line attaches to the carb or somewhere else?
I bought the carb at guaranteed carburetors. It was for a Mercrusier 3.0L 135 hp engine. It does have a nipple for the fuel overflow. The fuel pump was replaced and ran fine under the old carb. It's a mechanical fuel pump. The fuel is pumping to the carb but it does sound like it just gets cut...
After it dies its trying to start but it just won't turn over. I can't remember the serial number, I would have to go back and check. I thought I had it adjusted right the second time bc it was running great in neutral. The rpms were good. After sometime under the muffs it starts doing it again...
Yea I bought the carb already rebuilt so it is new. I'm just having trouble adjusting it to the right point. It runs good for a tiny bit and than it dies in neutral. The rpms just drop out of nowhere and than I can't get it started at no matter what I do.
Hey!! I have a mercury Mercruiser 3.0 with a Mercarb 2 barrel carb. I just recently had it rebuild. I was just wondering if there is more than one type of applications for the Mercarb? Meaning that my original one had only one adjustment screw by the throttle arm and the new one has 2. The other...
