Oil/Ratio For 90 HP Merc/Force Sport Jet

spullon

Recruit
Joined
Dec 31, 2015
Messages
1
Are all 2 cycle oils the same and is 50:1 ratio for the 90 hp Merc / Force Sport Jet too rich?
 

GA_Boater

Honorary Moderator Emeritus
Joined
May 24, 2011
Messages
49,038
Are all 2 cycle oils the same and is 50:1 ratio for the 90 hp Merc / Force Sport Jet too rich?

Welcome aboard.

You now have a topic of your own. We prefer that old threads remain dormant unless the thread starter re-opens. Click on the Forum Help link in the sig below and take a look at the Forum Rules.

2 stroke outboards require TC W3 oil which is formulated for water cooled motors. If the motor is not oil injected, meaning it has no oil tank, the fuel/oil ratio for Mercs is 50:1. If it is oil injected with an oil tank, the metering system delivers the correct ratio.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,968
That would be the FORCE powerhead.-Most of these units are operated in the constant idle / full throttle / idle / full throttle mode.----I would mix it at 40: 1 if you intend on running it like that.
 

H20Rat

Vice Admiral
Joined
Mar 8, 2009
Messages
5,203
Unless someone modified it, that engine ALWAYS came with a fairly reliable oil injection system... DO NOT MIX in that case.
 
Top