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Old 05 August 2018, 16:14   #1
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Country: USA
Town: Rhode Island
Make: avon
Length: 6m +
Engine: 90hp merc
Join Date: Mar 2006
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honda 50hp gas in oil

i have a honda 50hp motor that the gas is pouring into the oil. i found that the fuel pump would leak behind the plunger right into my crank case. by priming the fuel line it leakes right out from the back. my question is can i just replace the fuel pump and use the same plunger and o ring or do they have to be replaced all at once. thanks
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Old 06 August 2018, 00:53   #2
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Country: UK - England
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I have a bf90a. it may be similar. I simply removed the fuel pump. it cannot be dismantled unless you have a anti tamper tool. I couldn't get replacement parts for the pump. I replaced the pump and the large grommet/o ring that seals onto the cam area. The seal was in poor condition. I think the pump plunger and the pump are all one so it was a direct swap. Hope this helps..Nik
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