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2016/07/08 12:25:17
Black65pony

honda gx620 20 hp v twin engine stalling problem

I have a Honda GX 620 20HP v twin engine on my side by side that idles perfectly, but when we drive it, after a few minutes it bogs down and dies.  It will start right back up with the choke pulled, but dies after a little driving.  We have replaced the carburetor, fuel lines, fuel filter, and spark plugs.  Can anyone tell me where to look from here
12 comments Leave a comment
Mikel1
Are both cylinders working? Have you tried removing fuel cap off tank?
2016/07/08 12:35:18
Black65pony
I have loosened the gas cap. It will run fine sometimes fo 30 to 40 minutes, then starts bogging down and dieing, starts right back up with choke pulled
2016/07/08 12:52:34
Mikel1
Fuel tank doesn't have debris in it? If the fuel filter is the clear one, does fuel level drop in it when this happens? I have to leave town so I haven't had a chance to look up the engine.
2016/07/08 13:39:27
Black65pony
We cleaned out the fuel tank before we replaced the carburetor anf fuel filter. I have not checked the fuel filter when it dies. Thank you for your help, i am getting frustrated because my grand daughters want to ride
2016/07/08 13:42:31
Mikel1
Take some carb cleaner or starting fluid and spray into carb when it starts bogging down.
2016/07/08 19:56:28
Black65pony
The carb is less than a week old, it hasnt had enough gas through it to be dirty
2016/07/08 22:44:41
Mikel1
My post was to see if you have a fuel delivery problem. If you use the carb cleaner or starting fluid while it's bogging out and rpms increase and it starts smoothing out. Then there is a fuel delivery problem. Diagnosing only, wasn't implying your carb is dirty.
2016/07/08 23:31:08
Black65pony
Sorry, i didnt know what effect you were looking for with the carb cleaner. I will try that tomorrow. I know nothing about engines and i am trying to not take it to a shop. It idles perfect when first started and for anywhere fron 10 to 30 minutes after first started. I apologize for my lack of knowledge
2016/07/08 23:59:19
Mikel1
Not a problem, we have to have fuel, compression, spark, and timing to keep it running.
2016/07/09 10:31:26
Black65pony
Hi Mike, we finally figured it out. It was the oil safety switch. Thank you again for your help
2016/07/09 21:45:45
Mikel1
Yep that was next, not many things affect both cylinders at the same time.
Glad you got it figured out, your granddaughters will be happy.
2016/07/10 00:46:22
Black65pony
Thank you again. One granddaughter has already been on it. She had a blast
2016/07/10 07:03:44

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