gear oil and spark plug?

[diveplane]

I have 1979 Johnson stinger 75 hp,
What's the recommended gear oil, trim tilt oil and spark plugs.

 

[diveplane]

75ELR79

 

[Chinewalker]

Gear oil - any standard 90wt outboard lower unit oil will work.
Trim oil - pretty much any power trim fluid will work. Some folks use ATF. Whatever you use, best to drain the old before filling with new as some hydraulic fluids don't play nice with others.
Spark plugs - recommended were Champion L77JC4 or QL77JC4

 

[Keyboardman]

While looking up plugs for my 76' Stinger an alternate plug is also listed. Champion UL77V surface gap plug that I run in my 50hp. Any advantage to the surface gap plug?

 

[Chinewalker]

The surface gap plugs tend to run COLD. Best if you're spending all your time at wide open throttle...

 

[diveplane]

can we still get these plugs?

L77JC4

 

[diveplane]

https://www.amazon.com/Champion-L77JC4-821-Copper-Replacement/dp/B000XBIZFI

found them, whats the gap setting for this outboard?

the plugs come preset?

 

[Vic.S]

75ELR79

can we still get these plugs?

L77JC4

https://www.amazon.com/Champion-L77JC4-821-Copper-Replacement/dp/B000XBIZFI

found them, whats the gap setting for this outboard?

the plugs come preset?

QL77JC4 are also listed as sparkplugs for this engine

The gap now recommended is 0.030"

You should check and adjust the gap before use.

 

[David Young]

You can buy sparkplugs and the lower end (gear oil) oil from your local Walmart. A lot cheaper than buying from a Boat repair and sales place

 

[diveplane]

got the correct plugs

 

[diveplane]

Ok the nearest match for engine oil any 50/1 mix do?

 

[jimmbo]

Tcw-3 50:1

 

[diveplane]

Thx Jim what does tcw 3 mean?

 

[diveplane]

https://www.walmart.com/ip/Evinrude...cX1mFnMQnnnGrM83BKTs6QhVF7O6ej0hoC4GsQAvD_BwE


this oil match ok

 

[jimmbo]

TCW-3, means Two Cycle Watercooled Ver.3

The jug shows TCW-3 on it so it meets the spec

 

[diveplane]

Thx my friend