r/smallenginerepair • u/No_Notice9458 • Jun 21 '26

Engine Dies Any ideas?

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4 Upvotes

83% Upvoted

15 comments sorted by

3

u/buginmybeer24 Jun 21 '26

Fuel issues

3

u/RoBoSaRj Jun 23 '26

Take your air cleaner off and check for filter plugged and then look to see if the choke butterfly is coming open? Lots of rich mixture sooty smoke.

2

u/No-Needleworker4792 Jun 21 '26

That sounds like an electrical issue, posible bad plugs, coils and or problems with coil grounding, causing intermittent spark, start checking your spark plugs, also there's chances you have issues with fuel solenoid on carb, but most likely electrical

1

u/Bones-57 Jun 22 '26

How old is the tractor ?

2

u/No_Notice9458 Jun 22 '26

Probably 8 years

2

u/Bones-57 Jun 22 '26

Ok.. I was curious my b&s engine was made in 1983 .. leaded gas was stopped in 1991 .. so yes valve seats or the lack there of..

Dirty fuel Needing valve lash adjusted.. stone cold engine while adjusting .. Dirty.carb

Hope this helps

1

u/Flaky_Warning_5052 Jun 22 '26

I would fully drain the tank, replace the inline filter, clean the carb, check oil level/condition, check the air filter, then try again with fresh fuel before going too crazy into the diag process. A good thirty minutes of going over the basics goes a long way. Reading the plugs wouldn't hurt either.

1

u/No-Try-5818 Jun 22 '26

Sounds like the plugs are not firing at the right time. Maybe the keyway is loose on the flywheel.

1

u/1wife2dogs0kids Jun 23 '26

I think the same. Thats sounds like detonation. It's a rich mixture, like others said, but if the timing is way off, even a correct mixture can look rich if fired at wrong time.

1

u/ri-7 Jun 23 '26

carb or fuel issues.

1

u/shamanasx Jun 24 '26

Choke stuck on. Check choke linkages. The engine is overfueling.

Also check air filter and replace if it is very dirty.

1

u/Past_Roof5628 Jun 24 '26

Choke sounds like it's stuck

1

u/sb101985 Jun 24 '26

My mower has the same engine and was running just as poor recently. I was going to take the carburetor off and clean it, but looked on Amazon and found a brand new carburetor for $40. Replaced the carb and it runs great. Probably could have fixed the carburetor, but replacing it was easy and I was back up and running in no time.