redtom, You already know what the problem is, it does have a sticking valve. I have seen it dozens of times on lift trucks with overhead cam engines. I've been wrenching on lift trucks for 32 years now. The valve springs on OHC engines are not strong enough to close the valves when the valve stems are gummed up. We use a product called "Castle Clean" that is a intake system cleaner and it works great 95% of the time. The one we use has a can of cleaner that hangs on the overhead guard with a hose attached to a vacuum fitting on the intake manifold. Run the engine at 1200 RPM and let the cleaner do its thing. Some times we have to do it twice and in the few cases that it doesn't work the head has to come off and the valves removed and cleaned.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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