03 250 Ficht Temperature

CARLB

Recruit
Joined
Dec 16, 2008
Messages
1
Good day guys, first post. I have this fine 03 Evinrude Ficht 250, 150 hours, software updated, new impeller, plugs, filters, etc. Have replaced thermostats with warmer E-TEC thermostats. I am running 140-150 at idle and low speeds. At over 2500 rpm, the temp drops considerably, into the 100-110 range. Is this normal?? As an auto tech, the purpose there is to maintain the temp steady. I admit I never noticed the temp dropping before replacing the stats, but I also was not paying as much attention. Any Ideas??
 

Fl_Richard

Lieutenant
Joined
Jan 21, 2005
Messages
1,428
Re: 03 250 Ficht Temperature

Ive got twin 150hp carb'd Johnnys. Same thing on both. I think it's closed cooling vs open.
 
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