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  1. 10-17-2021, 05:21 PM #1
    1ranger487vs
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    Tachometer setting

    Which setting do you set your tach on for a 3l opti. I have a seirra omega series and mine was set on 8p but what I have read it says set on5. Mine only has a 5 p on back. Is this right
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  2. tomloans
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    #2 10-17-2021, 08:08 PM
    I lost track one time and your Opti should be idling at about 575ish. So what I did is simply crawl under the console and moved it until I hit 575 idle speed. That was all there was to it.
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  3. SilverFox579
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    #3 10-18-2021, 05:09 PM
    6p.
    _______

    Phil
    '09 Hewescraft ProV
    '09 150 Optimax

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  4. EuropeanAM
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    #4 10-18-2021, 05:11 PM
    Most commonly 6P is correct.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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  5. 1ranger487vs
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    #5 10-18-2021, 07:03 PM
    Thx. Not sure if I saw a 6p. Have to look again
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  6. 1ranger487vs
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    #6 10-19-2021, 06:50 PM
    So I checked again. It was set on 6p and not 8p. The problem is I have 518 dvs. With a 25 tempest. I’m running 68 on gps but only showing 5200 on tach. Most others with same rig are showing 5700 at that speed with same prop and set up. Any ideas
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  7. EuropeanAM
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    #7 10-20-2021, 12:25 PM
    Inductive Pickup Tachometer, connected directly to the engine (or better yet, a Smartcraft Instrument) to compare ACTUAL engine RPM's.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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  8. 1ranger487vs
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    #8 10-20-2021, 03:04 PM
    Thx
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