Lawnmower engine problems
Discussion
Hi,
I have a Briggs & Stratton "Reliable Starting" (hah!) 35 Classic lawnmower that is struggling to live up to its name.
It hasn't been used since the end of last summer, so when it failed to start, we put it down to off-petrol; so we emptied the tank and put some new stuff in. This helped, in that it actually now starts, but it sounds really lumpy, as if it is either starved of air or petrol, or the idle is set too low, and will normally last about 2 minutes before cutting out. Anybody have any idea what the problem may be?
We have tried running it with a modified air intake (i.e. we cut the grimiest parts off in case they were blocking the intake), and even with no intake, but it's still having the same problem. There is also enough (fresh) petrol and oil in it.
The garage it was stored in over winter was flooded, but as it's been left in the sun for a few days, I wouldn't have thought that could affect it. We've removed and cleaned the sparkplug, too. And there is a screw on the outside of the engine block that I assume is the choke (no longer have the manual) - altering that makes no difference.
Anybody have any ideas about the problem? My only thought is that the old petrol has glazed the engine internals.
Many thanks for any help and advice
I have a Briggs & Stratton "Reliable Starting" (hah!) 35 Classic lawnmower that is struggling to live up to its name.
It hasn't been used since the end of last summer, so when it failed to start, we put it down to off-petrol; so we emptied the tank and put some new stuff in. This helped, in that it actually now starts, but it sounds really lumpy, as if it is either starved of air or petrol, or the idle is set too low, and will normally last about 2 minutes before cutting out. Anybody have any idea what the problem may be?
We have tried running it with a modified air intake (i.e. we cut the grimiest parts off in case they were blocking the intake), and even with no intake, but it's still having the same problem. There is also enough (fresh) petrol and oil in it.
The garage it was stored in over winter was flooded, but as it's been left in the sun for a few days, I wouldn't have thought that could affect it. We've removed and cleaned the sparkplug, too. And there is a screw on the outside of the engine block that I assume is the choke (no longer have the manual) - altering that makes no difference.
Anybody have any ideas about the problem? My only thought is that the old petrol has glazed the engine internals.
Many thanks for any help and advice
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