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    Why a Primer Bulb?

    I have a basic theory question of why my 175 Sport Jet (or most outboards for that matter) need a primer bulb. My previous boat (merc 140 i/o) didn't have one, but seems like all outboards do.<br /><br />Why can't they just get rid of it, since it seems like a source of a lot of problems?<br...
  2. T

    Why a Primer Bulb?

    I have a basic theory question of why my 175 Sport Jet (or most outboards for that matter) need a primer bulb. My previous boat (merc 140 i/o) didn't have one, but seems like all outboards do.<br /><br />Why can't they just get rid of it, since it seems like a source of a lot of problems?<br...
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    175 Doesn't idle when hot

    My 2002 175 sport jet runs fine, but it won't idle when hot (idles fine when cold). This isn't good in a sport jet since there is no neutral and no way to run the engine above idle speed without putting it in "gear".<br /><br /><br />What would be the first thing to try? New plugs are $70...
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