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Trouble starting 4stroke high elevations
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<blockquote data-quote="Country Dave" data-source="post: 324552" data-attributes="member: 10344"><p><em>Well I’m not an outboard expert but when you’re at altitude the air is thinner/less dense,</em></p><p><em></em></p><p><em>So to get a good air fuel mixture you need the fuel mixture to be leaner not fatter/rich. Choking a motor makes the fuel mixture richer because that’s what a cold motor needs, a little bit richer fuel mixture until it warms up. </em></p><p><em></em></p><p><em>If you choke a motor at altitude you’re making an already rich fuel mixture even richer. </em></p><p><em>Try open up the throttle plate a little when cranking and that will let more air into the motor. Don’t choke it. Check with the manufacture and see what there recommendations are. </em></p></blockquote><p></p>
[QUOTE="Country Dave, post: 324552, member: 10344"] [i]Well I’m not an outboard expert but when you’re at altitude the air is thinner/less dense, So to get a good air fuel mixture you need the fuel mixture to be leaner not fatter/rich. Choking a motor makes the fuel mixture richer because that’s what a cold motor needs, a little bit richer fuel mixture until it warms up. If you choke a motor at altitude you’re making an already rich fuel mixture even richer. Try open up the throttle plate a little when cranking and that will let more air into the motor. Don’t choke it. Check with the manufacture and see what there recommendations are. [/i] [/QUOTE]
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