I have a 1996 40 hp, 4 cylinder, that will stall unless you keep using the choke.
It has 125 compression on all cylinders, spark is great and new plugs.
I removed the carbs, they looked clean, checked all the passages and replaced all gaskets, made no difference.
It will keep running if you keep pushing in the key. The fuel pump has 2-3 lbs pressure.
It almost acts like there is not enough vacume to pull fuel out of the carbs.
The engine did overheat enough to start to melt the plastic water pump housing, but did not discolor the engine. Replaced the water pump and it cools properly.
Any thoughs as to what the problem might be.
It has 125 compression on all cylinders, spark is great and new plugs.
I removed the carbs, they looked clean, checked all the passages and replaced all gaskets, made no difference.
It will keep running if you keep pushing in the key. The fuel pump has 2-3 lbs pressure.
It almost acts like there is not enough vacume to pull fuel out of the carbs.
The engine did overheat enough to start to melt the plastic water pump housing, but did not discolor the engine. Replaced the water pump and it cools properly.
Any thoughs as to what the problem might be.