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I have a few ideas as I have had issues with mine over the years:
1) did you "burp it" air can cause issues in the closed cooling. 2) related to above drill small holes in edge of thermos - lets air bleed out 3) triple check raw water flow ... thruhull, valve, impeller, oil coolers (if old check not clogged), and make sure all clamps are tight. I had a busted clamp - let in air - caused heating issues. Good luck Bro |
Too bad it's fuel injected.
Raising the timing at idle can significantly reduce exhaust temps unless it's already somewhere say between 16-20. |
An important piece of missing information is that he isn’t using oil coolers of any kind. His issue is overheating after a hard wide open run when the oil temps would naturally be sky high without coolers. The temps don’t rise until returning to idle speed if I have his description right. |
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