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Smithers

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" I think I have a problem . 1

" I think I have a problem . 1986 Johnson 60hp VRO .I want to run without VRO & premix 50:1 Can I disconect oil hose @ engine fitting plug it off & not @ oil side of pump (under engine cover).What is correct NGK plug for this engine was using B9HS10 now using BZ7HS10 which is hotter/colder? Plugs are quite oiley . I was premixing didnt think VRO was working (I just bought boat this year)but it is, oil tank has gone down . Compression is 110psi on all 3 cyl.I want to remove oil tank for extra room .Tank has a float switch I will have to by-pass? Thanks for any advice Smithers "
 
"Smithers.... If you're go

"Smithers.... If you're going to do away with the VRO fuel/oil automatic setup, you may simply plug the line at the fitting where the oil line from the tank connects to the engine. I assume this is what you want to do. If you're removing the oil tank and its hose, there is no need to be concerned about a float switch or any other device as you are removing it from your system. Just disconnect the wires (at the engine) that lead from the oil tank.

Spark plugs.... I prefer Champion S/Plugs which would be either QL77JC4 or L77JC4 plugs. The "Q" is a resistor plug. The "C" stands for a "Copper" electrode. The "77" is of course the heat range.

The NGK B9HS10 is too hot! If you're going to use a NGK plug, don't exceed the "7" heat range. I have no idea what the "Z" stands for that you quoted in your (BZ7HS10) but I'd suspect it is a resistor plug?

Regardless of what s/plug you use, set the gap to .040.....

Joe"
 
" Thanks Joe - I took the boat

" Thanks Joe - I took the boat out today with the oil line plugged , 50:1 premix & the boat ran great. Dont know why previous owner had the hot plugs " 9s" instead of the "7s" I will run the cooler plugs. I think the "Z" in those NGK plugs should be "$$$" cause I paid way too much @the lake for them. Smithers "
 
According to the N.G.K. catal

According to the N.G.K. catalogue the letter Z stands for "Inductive resistor type" so yes it's got a resistor.
 
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