Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I have a strange problem with my Honda GX390, 13HP engine.  I replaced the carb. with a working one it did not help.  The engine seems to run fine in low RPM.  Once I open the throttle it dies.  No problem to restart.  Maybe there is an air leak but I can't figure it out where can it happen other than the carb.  The gasket between the carb. and engine is in good condition.  What else can I try?

Thanks

Bob

jrtrebor, thanks for the clarification. For whatever reason, I was assuming this was a pressurized oil setup. For clarity, my Generac engine *is* a pressurized setup, has an oil filter, etc. So I was dealing with a different type of switch. Sorry for the confusion.

bcjm, double check the manual before you go adding a lot of oil. If it has a dipstick with markings, then go by that, of course. But different engines get filled to different points. My Generac has no dipstick, and gets filled until it's about to run out of the oil fill location. But other engines are very different (if I filled my Tecumseh until it came out the fill hole, I would have a very big problem on my hands). Too much oil can be Very Bad, just like too little. I'd just hate to hear of something happening to the engine due to accidentally overfilling it "all the way".

I believe Honda engines oil level suppose to filled all the way up.   I will double check.

bcjm wrote:
I know that on my GX390 the oil level is supposed to be right up to  (bottom edge of the oil fill hole)

jrtrebor, do you mind reply the PM I send? thanks.

bcjm wrote:
Sorry, I sometimes miss those.