95Bounder32
Member
- Joined
- Aug 19, 2018
- Posts
- 12
I have an Onan Marquis 7000 generator that was working fine until I went to start it one day and nothing. After some major research and diagnostics, I determined that it was a faulty control board. The symptom was that when I pressed the start button, all I would get would be a clicking noise which I discovered was the sound of the fuel pump. The starter was dead and the engine wouldn't turn over. Nothing. Just the fuel pump clicking noise. After research, I was able to bypass the control board and starting relay by using a jumper wire between the battery side of the relay and the shunt coil terminal which allowed the starter to engage. This pointed toward the control board as the culprit, and it was. After I installed the new board, I pressed the start button and it fired right up and ran for about 15 seconds and then shut down. I tried pressing the start button again and all it would do is turn over and dump fuel out of the air box. I waited a couple of days and tried and it fired up and then died after about 15 seconds and dumped fuel. Same thing as before. Here is a video. Does anyone think the float is stuck open or something? And if so, is there an easy way to loosen it without removing the carb? (I don't own any stubby open/boxed end wrenches which are required to loosen the carb nuts.) TIA!
https://youtu.be/uA3MpYwGFIs
https://youtu.be/uA3MpYwGFIs