Correct Temp for Risers

cwatson53

Member
Joined
Aug 18, 2005
RO Number
18759
Messages
4
What is the correct temp for risers on a raw water cooled Merc 5.7 220hp. I thought mine were running too hot, but my raytek minitemp gun says about 140, and that doesn't seem too hot. May be being paranoid.
 
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