Engine stops after 30-40 minutes

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cariyawacubcadet

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I have a Cubcadet XT1 Enudro series 42" lawn mower. Motor has only 55 hours on it. I do not have any problem starting it but after about 30-40 minutes, it stops almost every week when I mow. If I try to crank it, after 5-10 minutes trying, it starts and run like nothing happened. This has happened last 3-4 occasions. After engine stops, when I try to crank, I could see little bit of smoke than usual but I smell gasoline.

I have followed the maintenance schedule properly (Oil change, oil filter change, complete air filter change, fuel filter change). I appreciate if anyone can give me some tips to figure out what is going on.
 
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bertsmobile1

Lawn Royalty
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First step is to work out why it stops.
Easy way is to buy an inline red spark tester and fit it to the mower
Then get a can of carb cleaner.
Go mow
The instant it stops crank the engine and watch the spark tester for red flashes
No flashes = electrical problem

Red flashes but no fire = fuel / valve problem

whip off the air filter and give the carb a very short shot of cleaner and attempt to start
Engine fires = fuel supply problem

next try a shot of carb cleaner down a plug hole
Engine fires = valve problem.

and speaking of valves when was the last time you checked the valve lash ?

Let us know the results and we can take this furthe from there.

Your parts book & service manual are available from Cub on the web.
Download them both it will help greatly is we are all singing from the same song book.
 
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cariyawacubcadet

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Jul 5, 2019
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Thanks for the quick answer. I will follow your advice and post what happens. Thanks again!!

bertsmobile1 said:
First step is to work out why it stops.
Easy way is to buy an inline red spark tester and fit it to the mower
Then get a can of carb cleaner.
Go mow
The instant it stops crank the engine and watch the spark tester for red flashes
No flashes = electrical problem

Red flashes but no fire = fuel / valve problem

whip off the air filter and give the carb a very short shot of cleaner and attempt to start
Engine fires = fuel supply problem

next try a shot of carb cleaner down a plug hole
Engine fires = valve problem.

and speaking of valves when was the last time you checked the valve lash ?

Let us know the results and we can take this furthe from there.

Your parts book & service manual are available from Cub on the web.
Download them both it will help greatly is we are all singing from the same song book.
Click to expand...
 
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