Mariner 4 cutting out

[matt0909]

Hi, 1st post so hoping someone can help me

I have a 1990 Mariner 4hp (yamaha based), and it has been stored inside over the winter ( no fuel in it as used it up) . Put in brand new fuel into the tank with correct amount of oil and started up okay. But when I increase the fews at all, it starts to lose power and then cuts out completely. It will rev fine with the choke on, but not without it.

Any ideas would be much appreciated, as its time and money for it to be professionally repaired

Matt

[Downhilldai]

Carb probably needs cleaning.

[matt0909]

Thanks, will give that a try

[bradosh]

Originally Posted by matt0909

Thanks, will give that a try

yep
my johnson 5hp 2 stroke had just the same problem but after a carb bath all was fine

[matt0909]

Originally Posted by bradosh

yep
my johnson 5hp 2 stroke had just the same problem but after a carb bath all was fine

Brilliant, thanks

[jyasaki]

Might also be a clogged fuel line/filter.

Might try increasing rpm (gently) while squeezing the priming bulb.


jky

[Downhilldai]

Originally Posted by jyasaki

Might also be a clogged fuel line/filter.

Might try increasing rpm (gently) while squeezing the priming bulb.


jky

Integral tank on a Yamahariner 4

[matt0909]

yeah, integral fuel tank in mine unfortunately, Thanks anyway though, will try and take the carb apart this weekend and leave it soaked in petrol to clean it. lets just hope it works after

[jyasaki]

Originally Posted by Downhilldai

Integral tank on a Yamahariner 4

Sorry; saw 40 for some reason...

jky

[bradosh]

[QUOTE=matt0909;345541] yeah, integral fuel tank in mine unfortunately, Thanks anyway though, will try and take the carb apart this weekend and leave it soaked in petrol to clean it. lets just hope it works after [/QUOTE

did you manage to sort the problem??