K341SA shutting off after running for a while

[bo dawg 476]

On my SK-486 after running it for a while, maybe approx 1 hr or so. It will shut off and engine will not turn over like it has no spark. By the time I look it over trying to trace it down, cooling enough, it starts back up. 

So would it be correct to assume its the coil doing this???

Edited March 26, 2017 by bo dawg

[oldredrider 2,547]

Sounds more like a poor connection somewhere. 

A dysfunctional coil usually doesn't wait an hour or so before giving up.

[cafoose 3,135]

I had a Honda dirt bike once and it would quit after warming up and lost spark so I replaced the coil and that corrected the problem

[953 nut 51,650]

   I think you have a bad fuel cap vent, once you use a portion of the fuel the tank is under a vacuum that the fuel pump can't overcome. Next time you use it try backing off on the fuel cap a bit (be sure the tank isn't too full). If it keeps running buy a new cap;  worked for me.

[Daddy Don 889]

I had a coil breaking down that did the same thing.

[Adams94 1,065]

If it isn't the gas cap I would change the coil!

[DTOM 124]

  Ohm your primary and secondary of the coil first before buying one.

[953 nut 51,650]

On 3/26/2017 at 5:52 PM, bo dawg said:

So would it be correct to assume its the coil doing this?

If it isn't the fuel cap and is heat related it may be the coil, or not. One other heat related ignition component would be the condenser, and you can operate the engine for short periods with it removed from the system. When the engine quits remove the condenser wire from the coil "-" terminal and see if will fire.

Edited March 27, 2017 by 953 nut
oldredrider corrected me.

[pfrederi 17,146]

Test it cold then est it when teh unit has shut down

 

 

[oldredrider 2,547]

Condenser should be attached to the - side of the coil. 

Edited March 27, 2017 by oldredrider

[953 nut 51,650]

2 hours ago, oldredrider said:

Condenser should be attached to the - side of the coil. 

Thanks for catching that, I have edited my post.    

[bo dawg 476]

Sounds like a plan I will check these things when it shuts off. Although I used it last 2 days rolling and mowing the 2 acre yard and it ran the whole time. (after sitting all winter).

Thanks everyone!