I work at the local golf course and we use this type pump for several applications. The line from the crankcase will sometimes fill up with oil or sludge if the engine has a lot of wear on the rings and has blow by. To check for proper operation of the pulse line from the crankcase. Pull the line loose on the pump end and place some soft grease over the opening so that it completely covers the hole. Run the starter to crank over the engine, If the grease does not suck in and blow out, you do not have enough action to operate the pump. Sometimes the line is full of crud also. The OEM pulse type for a Yamaha will choke you with the price. Go to the local small engine place and they will have them that fit, Tecumseh, Briggs and also Kohler. All the same pump just the lines are oriented differently. These will often be 1/2 the price of the OEM pumps and do the same job. I use the Kohler style most often. You will have to be sure the pressure from an electric isn't too much or the needle and seat to control. The plastic ones are usually less expensive than the metal ones. The pumps we have tried rebuilding did not ever work satisfactorily so we decided to take the price of a kit and applu it to the new one. One other thing, small engine gasoline filters are made in 2 types. One type is for fuel pump and the other type is for a gravity flow tank.
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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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