Re: 1985 johnson 140hp
You started a new post today, asking about installing new fuel lines. Throwing parts at the engine isn't going to cure it. You need to trouble shoot the engine. Many boaters (ones without a tuned ear) will think that the engine is running fine on a flushette when actually it is not... and this shows up when the engine/boat is in the water... stalls, no power, hard starting, etc.
First thing to so is to check the compression. What are the compression reading of each individual cylinder?
Second check is to have the spark plugs removed and test the spark. The spark must jump a 7/16" gap with a strong blue lightning like flame.... a real SNAP! Does it? Note that the 7/16" gap is important.... testing the spark by using the spark plugs is a waste of time, DON'T do that! No tester? Build the following.
(Spark Tester - Home Made)
(J. Reeves)
A spark tester can be made with a piece of 1x4 or 1x6, drive a few finishing nails through it, then bend the pointed ends at a right angle. You can then adjust the gap by simply twisting the nail(s). Solder a spark plug wire to one which you can connect to the spark plug boots, and a ground wire of some kind to the other to connect to the powerhead somewhere. Use small alligator clips on the other end of the wires to connect to ground and to the spark plug connector that exists inside of the rubber plug boot.
Using the above, one could easily build a spark tester whereas they could connect 2, 4, 6, or 8 cylinders all at one time. The ground nail being straight up, the others being bent, aimed at the ground nail. A typical 4 cylinder tester follows:
..........X1..........X2
.................X..(grd)
..........X3..........X4