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Troy Built (13WN77KS011) Briggs Stratton 17.5 hp Runs Rough

#1

F

fakeid43

Runs rough, sounds like it is missing or will die if I start the blades. Only starts in fast will not choke, very loud popping. Changed spark plug, oil is good, battery is good, tried with and without air filter same results. Female with little mechanical experience, friend is not much better but can follow directions. Any suggestions would be appreciated. Thanks Marie.

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#2

I

Ifixdit

fakeid43 said:
Runs rough, sounds like it is missing or will die if I start the blades. Only starts in fast will not choke, very loud popping. Changed spark plug, oil is good, battery is good, tried with and without air filter same results. Female with little mechanical experience, friend is not much better but can follow directions. Any suggestions would be appreciated. Thanks Marie.
Click to expand...

Very loud popping usually means a valve is not properly closing. The valve cover on the front of the engine needs to be removed. Is there anything loose or falling out in there?? If yes, then that's part of the problem. The valves will need to be adjusted. Find a YouTube video that shows this. If no, then pull the spark plug and rotate the engine by hand. Each of the springs in the valve cover should open and close the same distance. If one doesn't then you have a bad camshaft which requires removal and disassembly of the engine to correct. Hope this helps. Good luck!


#3

R

Rivets

Post the model numbers off the engine and I will get you a service manual.


#4

F

fakeid43

Rivets said:
Post the model numbers off the engine and I will get you a service manual.
Click to expand...

Will do. Thanks


#5

F

fakeid43

Ifixdit said:
Very loud popping usually means a valve is not properly closing. The valve cover on the front of the engine needs to be removed. Is there anything loose or falling out in there?? If yes, then that's part of the problem. The valves will need to be adjusted. Find a YouTube video that shows this. If no, then pull the spark plug and rotate the engine by hand. Each of the springs in the valve cover should open and close the same distance. If one doesn't then you have a bad camshaft which requires removal and disassembly of the engine to correct. Hope this helps. Good luck!
Click to expand...

Thanks will watch video. I took video of my mower trying to get it to upload.


#6

V

vabear

Try putting a little water out in the fuel tank,( condensation in the fuel will cause hard start, rough ilel and stalling) may not work but it is a cheap fix if it does work.


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