Tohatsu 70a2

[1badtohatsu]

I am having problems out of my 70 horse outboard engine.The bottom cylinder is missing it is firing/running somewhat on this cylinder but not as good as the top cylinder.What is the oil fuel ratio, the owners manual says 50:1 w/use of tohatsu oil but with the use of any other oil it recomends 20:1.I talked to Alabama marine and they say to just mix it 50:1.The reasoning in asking the ratio is the plugs are soaked with oil after it is ran?It seems to clear up out of water but under a load it has no power.Any suggestions would be greatly appreciated!

 

[TOHATSU GURU]

Re: Tohatsu 70a2

50:1 with any TCW-3 outboard oil.

 

[93gambler]

Re: Tohatsu 70a2

I just had a similiar problem with my 1986 NS70A. Turned out a new ignition module fixed it. Make sure all grounds are connected well and also make sure your battery connections are clean and tight. Good Luck.