OIL MIXING QUESTION

pugmyre, Nov 24, 2:50am
Sorry for asking this question in the Motoring Section, a friend of mine has purchased a 9.9 HP Johnson Outboard.What would be the correct mixture!Would it be 50 to 1 or 100 to 1.The engine is old.It is a 1991.Appreciate any help.

johnf_456, Nov 24, 2:56am
Most likely 50:1

bellky, Nov 24, 2:57am
Google says:

"Everything after '64 is 50:1, TCW-3 oil." And:

"I had a 9.9hp Johnson (white housing)about that vinage and used 50-1. Seems like the manual said 100-1 for slow trolling, but to increase for higher RPM. I used 50-1 all the time and did not have any problems."

the_chooky, Nov 24, 2:57am
If in doubt,start with 50.

pugmyre, Nov 24, 3:18am
Thank you people.We appreciate your help.Many thanks.

pugmyre, Nov 24, 3:20am
Bey Bellky.Sounds like it's the same sort of engine.Will do what you say.

therafter1, Nov 24, 3:23am
Here is your mix ratio??

bellky, Nov 24, 3:33am
Ok cool. That second quote when they said 'about that vintage' was referring to 1990.

The Google search I used was '9.9 HP Johnson Outboard ratio' on Web and Pages from New Zealand.

snork28, Nov 24, 3:41am
http://www.csgnetwork.com/oilfuelcalc.html another handy site for mixture

pugmyre, Nov 24, 4:00am
Thank you again everyone.Your help means alot.

splinter67, Nov 24, 7:00pm
Hang on dont you use your computer for trolling

trademerob, Nov 27, 4:04am
two parts oil two one petrol and one Banana Muffin.

icemans1, Nov 27, 8:28am
make sure you add the oil yourself - NEVER TRUST PEOPLE IN A GAS STATION TO DO IT