X 300 stalls after 10 minutes
- Thread starter chazdo2
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Thanks for all the info. I brought a plug wrench with me as soon as it quit I pulled the plugs and as I said dry as a bone. Ill try again today with a spark tester and do the same thing immediately when it quits. It has a brand new cap and the counter guy said the old cap was good but the owner bought a new cap anyway. I have a few spark testers maybe I can rig both sides up with them mow with the hood off and see if the spark dies. It seems to give ya about 2 seconds before it dies maybe not that much.
I had a problem with another X300 that wouldn't start. I disconnected the black wire that kills the coil and it started right up. I replaced the ECU and now it runs perfect. Could the ECU be killing the carbs anti backfire solenoid shutting off the gas or killing the coils? Its an expensive part to shotgun and be wrong!
I had a problem with another X300 that wouldn't start. I disconnected the black wire that kills the coil and it started right up. I replaced the ECU and now it runs perfect. Could the ECU be killing the carbs anti backfire solenoid shutting off the gas or killing the coils? Its an expensive part to shotgun and be wrong!
The ECU does control the solenoid. Anything that controls the solenoid can be an issue, if it is really a heat related issue- could point back to the ECU. Does the time extend itself with the hood off? It too is fairly common for the pick up tube in the fuel tank to get partially plugged with grass and debris which causes an intermittent stall when the pump can't overcome the debris. Pine needles and strands of grass are the worse for this. Cleaning the fuse block and switch terminals with CRC should be done anyways. I'm not sure if you are servicing mowers for living, because if you do- you should have an ECU in stock.
Diggin It
Super Star Member
Are these your own personal machines, acquaintances or are you working in a shop somewhere?
You really should try opening the gas cap, even if just for giggles.
Plot thickens. Mowed with it for about 40 minutes with the cowl off so I could view the spark testers when the machine shut down. Never stalled out today. Maybe the extra cooling made the difference? I know coils can fail sometimes when hot. Maybe it means nothing? Ill test again tomorrow to see if it will stall again. Ill do more with the cowl off and if it doesnt stall Ill put it back on and see what happens. Ill keep ya posted! And thanks a lot!!!!
beenthere
Super Star Member
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- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
If you think it isn't air-cooling enough, check for mouse nest around the engine..
Kish318420
Gold Member
Actually you need to pull any tin, because the critters can get up inside the cowling (underneath it)
beenthere
Super Star Member
- Joined
- Aug 16, 2001
- Messages
- 18,532
- Location
- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
Neighbor lost his engine in his Simplicity from a mouse nest.. he too thought "no way".
But cooked one cylinder. But now he is a Deere owner and very happy.
But cooked one cylinder. But now he is a Deere owner and very happy.
More I think about it I better pull the recoil and engine tins at the very least to rule it out. Thanks!! I never considered it because the engine looks like it came out of the show room!!! I will get back to you guys after todays cleaning and testing. Again thanks for all the help!!!!!!
