Fuel to Oil Ratio for 2004 Yamaha 2 Stroke?

[damaged]

It is a 150 Hp TXRC and it does have an oil injection system. In general, what would be the fuel to oil usage ratio? 50 or 100 to 1; I just bought the boat and motor and I am trying to guesstimate how much oil will be used, per 100 gals of gas. Thanks

 

[rodbolt]

Re: Fuel to Oil Ratio for 2004 Yamaha 2 Stroke?

it will vary between about 140/1 to 50/1 depending on throttle angle, a safe bet is to use the 50/1 or simply top off the remote tank at the start of each trip.
at wot the 2.9gal tank will hold enough oil for 150 gallons or so.they also make a 5 gallon tank, especially if you have a z250

 

[damaged]

Re: Fuel to Oil Ratio for 2004 Yamaha 2 Stroke?

RODBOLT, thanks for the response!