2014 Onan 4000 fuel leaking from carb
I have an Onan 4000 generator on my Shockwave. It's always been a little finicky to start. However, this past week when I went to start it for the monthly run, it just would not catch. I noticed fuel ...
Forum Discussion
When was the last time you ran this genset?
You topped the gas tank nearly a year ago. How much gas and how old was already in there? I think you're past the time span where StaBil will protect you.
Is this ONAN a 4KY-something? Always post the Model Number and Spec Code. Ours, for example, is Model 4KY Spec K.
If you have a 4KY, it's "possible" to get the float bowl off without removing the carburetor. You have to separate some wiring to even start and it's a slow go with a wrench on the bowl "nut." Not all that bad to remove the whole carb, but you need a T30 Torx bit, a 10MM socket and a lot of patience. ABOVE ALL you need pix and drawings of how the Throttle and Choke linkage, plus a little Spring on one of them, fall in place. Fail to do that and you'll be miserable.
If you take the float bowl off, you should be able to clean Needle and Seat. More likely, the float pivot stuck in the dropped position and you can clean that. Then... IF you've been running it regularly and it ran OK last month or so, you may get it running again and dodged an expensive bullet. Those carbs are around $200 and so difficult to clean the idle passages that many of not most just get replaced.
You topped the gas tank nearly a year ago. How much gas and how old was already in there? I think you're past the time span where StaBil will protect you.
Is this ONAN a 4KY-something? Always post the Model Number and Spec Code. Ours, for example, is Model 4KY Spec K.
If you have a 4KY, it's "possible" to get the float bowl off without removing the carburetor. You have to separate some wiring to even start and it's a slow go with a wrench on the bowl "nut." Not all that bad to remove the whole carb, but you need a T30 Torx bit, a 10MM socket and a lot of patience. ABOVE ALL you need pix and drawings of how the Throttle and Choke linkage, plus a little Spring on one of them, fall in place. Fail to do that and you'll be miserable.
If you take the float bowl off, you should be able to clean Needle and Seat. More likely, the float pivot stuck in the dropped position and you can clean that. Then... IF you've been running it regularly and it ran OK last month or so, you may get it running again and dodged an expensive bullet. Those carbs are around $200 and so difficult to clean the idle passages that many of not most just get replaced.
