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  1. #1
    Member
    Join Date
    Apr 2012
    Location
    Fresno CA
    Posts
    339

    Merc xRi 200 Max ROM and water temp

    Want to know what is the safe max rpm for these motor? I'm turning 6000 with a tempest 25p prop and wanna know if that's safe

    Also what temperature should these motor be running at while on wot ?

  2. Member
    Join Date
    Jun 2013
    Location
    LONGVIEW TEXAS
    Posts
    14,040
    #2
    cool season that's where I run um no problems when it gets hot itll drop better to run um high this time of year ,alot depends on surface temp sensor closes at around 240 on hot [100 +] day high humid seen um run well over 200, keep that water pump changed, detonation not good on rod bearings or pisst ons
    .................................................. ...the scariest thing in life is the unknown ...................................