I purchased a used motor a few month ago.It was hard to start after siting up every time. After I finally get it running it starts very well for the rest of the trip. I have read several threads and it appears the system is active till the engine warms up then it stops extra fuel from entering the #2 and #1 carburetors? I have taken the enrichment pump apart and all looks normal. Clean nothing out of the ordinary. It ohmed the enrichment valve and it read 3.5 ohms. I applied 12 volts to it and it does extend out.
The diaphragm in the enrichment pump look a little (crispy) kinda stiff. I turned the engine over and their is pulsation in the tube that connects to the enrichment pump. So I connected the tube and disconnected the tube that leaves the enrichment pump going to #2 carburetor. If I understand this system their be some fuel coming out the hose if the pump is working correctly?
I am thinking the diaphragm is old and not pulsating as needed. Any thoughts?
The diaphragm in the enrichment pump look a little (crispy) kinda stiff. I turned the engine over and their is pulsation in the tube that connects to the enrichment pump. So I connected the tube and disconnected the tube that leaves the enrichment pump going to #2 carburetor. If I understand this system their be some fuel coming out the hose if the pump is working correctly?
I am thinking the diaphragm is old and not pulsating as needed. Any thoughts?