1974 Merc 500 carb question

ryerman

Cadet
Joined
Oct 21, 2007
Messages
22
Changing carb jets for altitude change:
Can I replace the .063 seal level-4000' jets, and put in .061 4000' to 7000' jets, and still
have the engine run here at sea level? I plan to take the boat to higher elevation
(4300') in Idaho permanently in Oct. and just wanted to finish up work on it here at sea level. Will I have to re-tune it at higher elevation when I get to Idaho?
 
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