Recent content by Stupid

  1. S

    40hp force gear oil

    Is it ok to use the Mercury High performance gear oil of SAE90 rather than the premium gear oil 80w-90. It does say do not mix the two oils. I think the High performance oil has a better additive to resist wear even though the 40hp is not a high performance motor.
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    1998 Force Tach issue

    I have a Tach that will jump up and down at idle and sometimes it shows higher RPM's. This happen years ago and I bought a new tach but I do not suspect another tach gone bad. It is on 6p setup on the back of the tach. I do not have another tach to temporarily hook and compare to so how is...
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    Tach. Readings

    I have a '98 Force and I was running the boat the other day and all was normal and all of a sudden the tach was too high, but the motor is not running that high (normal at WOT is 4300-4400) this was 5000rpm. This happened a year or so after I got the boat new and I replaced the tach and ever...
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