G-Man
Junior Member
- Messages
- 958
- Location
- Pittsburgh,PA
I have a walbro 990 carb on my zenoah engine. It has been great for the past 6 months. On day I ran a half a tank of gas and shut it off to run another rc. Came back to restart the engine as I always do. I noticed there was no fuel in the primer bulb, so I pushed it 3-4 times and it wouldn't fill again. So I'm guessing the carb needs rebuilt. My question is, Does the entire carb need torn down and rebuilt or can I replace the gaskets/diaphragms only to resolve this issue? I have never rebuilt an rc carb so any advice would be appreciated. Oh and I have the fuel tank vented. I also tried to crack the fuel cap thinking maybe my vent valve is clogged. The primer bulb still wouldn't fill. Thanks