6hp merc 4stroke won't idel

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    Posted: 14 Apr 2018 at 2:35pm
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Have brought a second hand merc 6hp 4 stroke as an aux motor and it won't run without choke on. Seems like a fuel issue but have changed filter and using new fuel still won't run properly. Amy help appreciated
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Post Options Post Options   Likes (1) Likes(1)   Quote Tagit Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2018 at 3:41pm
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Blocked idle jet in the carb?Have you tried draining the carb?
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Post Options Post Options   Likes (0) Likes(0)   Quote Durban Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 2018 at 10:34pm
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The motor only idleing with the choke on tells me 2 things , its not getting enough air when the butterfly is in the normally open position , and when its in this position there should be just the right amount of air coming through the air jet so that when the piston comes down it creates sufficient vacume to suck air and fuel into the combustion chamber .so it could be one of 2 things or both incificient air or fuel. After you have cleaned the jets and have set your air screw acording to manual specs . wot you may find is that it will idle perfect in the water before you select the gear but may cut out once the gear is selected in this case increase the idleing
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Post Options Post Options   Likes (0) Likes(0)   Quote Onhio Quote  Post ReplyReply Direct Link To This Post Posted: 25 Apr 2018 at 4:09pm
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Problem all sorted now. Was a filthy carburetor and old fuel filter.
Thanks very much for the tips.
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