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Forum: Engines

07-23-2009, 02:07 PM

Replies: 6

Merc 5.0 lacks power at altitude

Views: 2,573

Posted By shrew

Re: Merc 5.0 lacks power at altitude

Awesome!!!!!

Remember a Carburated Engine loses 3.5% power for every 1,000ft. of elevation even WHEN properly jetted for elevation. The curve will go up far more if left jetted for sealevel. So...

Forum: Engines

05-15-2009, 04:09 PM

Replies: 6

Merc 5.0 lacks power at altitude

Views: 2,573

Posted By shrew

Re: Merc 5.0 lacks power at altitude

This sounds like a carb problem. It's esactly the same with dirtbikes and snowmobiles too (the extent of my experience with carburator tuning, but the principals apply to any carburated engine). I...

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