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  1. R

    Gear box/ lower unit

    How much oil does the gearbox/lower unit hold. I mistakenly added lift pump fluid to fill it. Want to have enough oil on hand as I want to drain and refill with the proper oil. :mad:
  2. R

    90 HP 1990 Force

    Does this motor have a warning sound when it starts to overheat ??: When I started it up last week in a tank of water it did not seem to discharge any water and I let it run for just a little and I hear this sound like a siren.confused: I ordered impeller kit which will get installed when it...
  3. R

    lower unit oil

    How much oil does the lower unit on my 90 HP force hold ?
  4. R

    90 HP Force question

    I just uncovered the boat to get ready for summer use. Just used the boat once last year after I purchased it so I'm not to up the outboards as my last boat was a I/O Put the water clamp over the water intake, turned the water on and all. Motor started right up but did not run it very long as...
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    Tune up Manual in PDF format

    Is there a tune up manual on line anyplace in a PDF format that would show how to adjust the idle speed on a 90 hp Force. :confused: Maybe someone can explain to me just how to do it.
  6. R

    year of our Force 90

    I have been trying to find out the year of manufacture for our 90 HP Force made by US Marine. Model 908F90C Serial # 024781 Ray
  7. R

    Trolling plates

    What is the general feeling about using trolling plates?? I have a 90 hp force and I'm wondering if it will be slow enough for good fishing. We used one on our old I/O and it worked well.
  8. R

    90 HP Force starting question

    Why would one have to spray a small amount of starting fluid into the air intake the first time it is started when it is cold. After it has run some it starts like a dream. It was tuned up before I purchased it,, new plugs and such and a water pump. The mechanic told the previous owner the...
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    Tighten the steering controls.

    When my boat is running at a low to medium medium speed and you let loose of the steering wheel it makes a hard right turn and if you are going wide open it turns really fast.:eek: Must be some way to adjust this. My boat is a 16 foot Silverliner tri hull with a 90 HP Force Ray
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    Seafoam

    How often does one need to use seafoam in the fuel and do you also have to use 2 stroke oil with it??:confused: My last boat was an I/O so a 2 stroke motor is new to me. Ray
  11. R

    Buzzer going off

    I'm looking at buying a older silverline boat with a 90 hp Force. We took it out yesterday for a test run and all seemed well except for a buzzer going off intermittently. The owner of the boat had no idea what it was but called and told me last night it was a low fuel warning. I have also...
  12. R

    Ideas of a buzzer going off.

    I'm looking at buying a older silverline boat with a 90 hp Force. We took it out yesterday for a test run and all seemed well except for a buzzer going off intermittently. The owner of the boat had no idea what it was but called and told me last night it was a low fuel warning. I have also...
  13. R

    Used Boat ^ force 90hp

    I'm looking at a older Tri Hull bow rider with a 90 hp force.motor. This will just be for fishing and nothing else. It also has a small gas trolling motor and electric one that needs a new bearing, We plan to take it to the lake Wed or Thursday to see how it runs. Have so heard many bad...
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