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Old 05-07-2019, 10:29 AM   #1
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Mariner 150 running issues

I’ve a late ‘80s Mariner 150hp 2 stroke which is having fuelling issues.

It runs great for about 20 / 30 secs, but then bogs down and will cut out unless the fuel line bulb is squeezed. It will then run fine again for another 20 / 30 secs. It does this both when idling and under load.

So far I’ve changed the fuel pump and also replaced the fuel line connectors both at the tank and engine (in case it was sucking in some air).

Any ideas what to try next?
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Old 05-07-2019, 12:47 PM   #2
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trouble shooting fuel system

try this=
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Old 05-07-2019, 06:10 PM   #3
NickGT40
 
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mariner 150 running issues

Had a simular problem years ago if running with a built in fuel tank try running it on an external tank and fuel lead to see if it makes any difference.good luck
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Old 05-07-2019, 09:14 PM   #4
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Quote:
Originally Posted by Frenchbruno View Post
try this=
Thanks for the info :-)
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Old 05-07-2019, 09:15 PM   #5
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Quote:
Originally Posted by NickGT40 View Post
Had a simular problem years ago if running with a built in fuel tank try running it on an external tank and fuel lead to see if it makes any difference.good luck
Running on an external tank at the mo 👍🏼
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Old 07-07-2019, 12:59 PM   #6
den
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Fuel

Tank vent?
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