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#1
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Soft primer ball
Hey guys got a new one I have a 1984 50 hp mercury outboard the problem is this I prime the ball engine starts fine but if and when I shut the engine to drift I have to prime the ball again it gets soft , I have to do this every time. Do you think it's the ball itself? Whist else could it be thanks for any help
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love to fish 
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#2
12-20-2015, 08:53 PM
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will the engine start if you don't prime the bulb? Keep in mind, the primer bulb will not stay hard under normal use. When you pump up the bulb, you are pressurizing the system from the bulb, thru the line, to the fuel pump, then to the carb. When you run the engine, the fuel pump sucks from the line (pulling a vacuum on the bulb) and pressureizing from the fuel pump to the carb. You shouldnt expect the primer bulb to stay hard. If you have any doubt on the bulb, replace it with a new one,don't use afetrmarket, only Mercury, Bomb(OMC), or Yamaha(same as the other japanese bulbs). Aftermarket bulbs suck, Ive thrown many Moelers, Sieera, Attwood, etc in the trash over the years
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#3
12-20-2015, 09:22 PM
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Hey spare the engine will not start unless I prime it again , if I sit for about ten minutes it will not start.
__________________
love to fish
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#5
12-21-2015, 04:24 PM
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make sure the arrow is always pointed UP and at the motor, not laying flat or pointed down.
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1984 V20 "Express" & 2003 Suzuki DF140 (SOLD!) 2000 GradyWhite 265 Express YouTube/SkunkBoat https://www.youtube.com/channel/UC4F...znGospVOD6EJuw Transom Rebuild https://www.youtube.com/watch?v=EEz94NbKCh0 https://www.youtube.com/watch?v=Oe_ZmPOUCNc
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#6
12-21-2015, 07:22 PM
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What those guys said. A primer bulb is good to change every year or two.
__________________
1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20
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#7
12-21-2015, 09:08 PM
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That's what I was thinking do you know it's 25 dollars for a mercury bulb prices are going crazy I hope that's the problem I will keep you informed thanks
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love to fish
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#8
12-23-2015, 09:51 AM
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I'm gonna disagree... they do go bad BUT the primer bulb is only there to prime the engine... the bulb is not supposed to keep the engine primed, tho it can do so and mask another problem....
if you never unhook the fuel line from the engine or run it out of gas you should never need to prime it... Find out why you are losing prime... bad fuel pump, slight leak/ deterioration/ loose clamps in/ on fuel line allowing air to be pulled in, etc
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