Since Dad passed I've been mowing Mom's grass with their 14.5 HP B&S powered Snapper riding lawn mower that I bought for Dad back about 96 or 97. It has been a great little mower with a 38" cut - perfect for their yard. I stop last night to mow the grass as it has been 2 weeks since I mowed and it was getting way too high. Anyway, the tractor started fine, I backed it out of the shed, I brought the RPMs up a bit and engaged the electric clutch. The engine stumbled a bit as normal as the deck engaged. I mowed for maybe 50" and all of a sudden I heard several loud clicks. It was like click, click, click and then it backfired and died. Caught me off guard. If I turned the key on it would turn over very slowly sometimes, sometimes not at all, but if it did it would back fire out the carb.
My thinking at the time was the keyway broke on the flywheel and it was "out of time" or the valves went out of adjustment. I went and found one of Dad's toolsets and it didn't take me long to figure out what happened. The Rocker arm mounting stud broke off in the head.
The Exhaust rocker arm then fell down on top of the intake rocker arm and wouldn't allow it to close. Looks like I'm going to have to pull the head off to see if I can get it out, otherwise looks like I'll be looking at a new head for it. Never having torn into one of these, I just ordered one of the B&S repair manuals from Amazon. Unfortunately because it wasn't Amazon selling it directly it probably won't be here until July 7 or later.
My thinking at the time was the keyway broke on the flywheel and it was "out of time" or the valves went out of adjustment. I went and found one of Dad's toolsets and it didn't take me long to figure out what happened. The Rocker arm mounting stud broke off in the head.
The Exhaust rocker arm then fell down on top of the intake rocker arm and wouldn't allow it to close. Looks like I'm going to have to pull the head off to see if I can get it out, otherwise looks like I'll be looking at a new head for it. Never having torn into one of these, I just ordered one of the B&S repair manuals from Amazon. Unfortunately because it wasn't Amazon selling it directly it probably won't be here until July 7 or later.


Figured I would be done by 7 or 7:30 including trimming. Started the tractor and was done messing with it by about 6:45. Then I started push mowing. Grass was so tall I couldn't keep it running so I didn't finish until about 8:30. Put stuff away, wash my hands and grabbed a bottle of water. Went home put a couple of things away and then changed the oil in the car. By that time it was 11:00 and I still needed a shower. Didn't have time to even think about getting on the Internet last night.
So I'm replacing both of the studs, the adjustment nuts, head gasket, valve cover gasket, and spark plug for $42. Still waiting on the book to arive so I know how to adjust the valves and I think it will be back in business.

Hopefully tonight....