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Hi i have a 20hp 1973 johnsons that seems to run fine but then will just cut out after 5mins use can anyone help does this sound like a fuel problem if so how can i solve it
Re: Hi i have a 20hp 1973 johnsons that seems to run fine...
Have you checked the fuel bowl for contaninants? Fuel pressure could also be weak or have a possible blockage. Spark plugs ok or replaced? Comment back with results, thanks.
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have the carby professionally overhauled
replace all rubber hoses from the tank , including having the fuel pump overhauled
the rubber parts break down and deposit small bits rubber in all of the jets in the carby
are you positive that all the fuel lines are good.and the primer ball is good? i have had a problem also like that and it turned out that there was some dry rot in the line that would make it **** air.this may be your problem...
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