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  1. 250 Pro XS Thermostat Part #?

    Started by natrix19, 03-17-2025 11:13 AM
    idle, low temp, thermostat
    • Replies: 7
    • Views: 780
    Last Post: 05-08-2025 09:42 AM
    by natrix19  Go to last post

    BBC Boards:
    Mercury - 3 Liter & 3 Liter High Performance

  2. 08 90hp Optimax rough idle and dies after 20 min WOT

    Started by JLivingston, 07-07-2024 07:14 AM
    dies, optimax 90, rough idle, temperature, thermostat 19 Attachment(s)
    • Replies: 16
    • Views: 1,505
    Last Post: 11-15-2024 02:18 PM
    by EuropeanAM  Go to last post

    BBC Boards:
    Mercury Motors

  3. Thermostat cleaning question

    Started by Bobcat, 03-30-2012 05:01 PM
    cleaning, opti, optimax, removal, replacement, thermostat
    • Replies: 61
    • Views: 44,702
    Last Post: 05-30-2023 09:24 AM
    by EuropeanAM  Go to last post

    BBC Boards:
    Mercury - 3 Liter & 3 Liter High Performance

  4. Too much water pressure at idle on 2000 175 HP EFI

    Started by Rangman, 07-07-2021 01:35 PM
    poppet, thermostat, water pressure 2 Attachment(s)
    • Replies: 16
    • Views: 1,456
    Last Post: 07-14-2021 09:45 PM
    by Rangman  Go to last post

    BBC Boards:
    Mercury - 2.0/ 2.4/ 2.5 Liter High Performance

  5. Optimax 115hp poppet valve?

    Started by zack123, 04-28-2016 01:05 AM
    115hp, optimax, poppet, thermostat, valve
    • Replies: 3
    • Views: 3,535
    Last Post: 04-29-2016 08:46 AM
    by SilverFox579  Go to last post

    BBC Boards:
    Mercury Motors

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