1995 70 force

[daniel202010]

i am new to the forum . i have a 1991 17 1/2 bayliner bought it with a blown 90 force now i have a 70 force 1995 model motor to put on it how fast do you think it will push it ? i also have a 1976 johnson javelin 85 hp on a bass boat it needs a power pack i believe , do you think it would push better and or run better . the force i have to change the starter from the 90 hp to the 70 hp and probably clean the carb . and what other parts may be used from the 90 to the 70

thanks for any help ..

daniel

 

[harkawy]

Re: 1995 70 force

I have a 1996 Starcaster Bass Boat with a 1995 Mercury Force 70. I have never put it to wide open throttle (WOT.) I have had it to 4500 rpm and the speedo said that I was doing 35 mph. It went up on plane and was relatively smooth sailing. As far as the interchangeability between the 90 and the 70, I'll leave that info to those who have more information and experience.

 

[roscoe]

Re: 1995 70 force

If the Johnson is running properly, it will do a much better job.
It has much more power and turns a larger diameter prop.


70 - 90 different carb(s)
different fuel pump
different electrical and ignition system
Trim pump might swap
starter solenoid, trim relays, controls, should all work

Should get about 30 mph out of the 70, with the boat empty.
Bet you would get 35-38 out of the Johnson.

 

[daniel202010]

Re: 1995 70 force

hey guys thanks for the reply's . i haven't had the time to do anything with it yet . when i do i'll let yall know .