Riser temperature 5.7

northern

Well-Known Member
Jan 17, 2007
3,516
Anacortes Washington
Boat Info
380 Aft Cabin 1989 Charts Timezero radar Furuno
Engines
Twin 454 strait shaft
On fresh water cooled (Antifreeze cooled engine) what is the normal top of riser temperature range when running at high RPM?
 

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