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Old 22 June 2012, 13:21   #11
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Originally Posted by Boats&Outboards

Merc do a 25hp EFI, I think that's the smallest out there. You may have hit upon a line line though at 3.5hp EFI, I may need to adapt it to SFI though at that small a size, Syringe Fuel Injected. Do you think it'll catch on ?

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There's a 25hp Etec as well
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Old 22 June 2012, 13:29   #12
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Originally Posted by bad_moose View Post
Okay dokay, brilliant I'll just drain it and clean the plugs. Any idea how tight I should do them up when I put them back?
You can use up the 2 stroke mix in any old yard equipment or even the outboard itself if you dilute the oil down a bit. 1:50 will smoke and foul the plugs but 1:200 will hardly be noticed. How big is the tank?

Plug torque is in your manual or you can make an educated guess with this table
Spark Plug Installation Instructions
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Old 22 June 2012, 14:56   #13
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Quote:
Originally Posted by Boats&Outboards View Post
Merc do a 25hp EFI, I think that's the smallest out there. You may have hit upon a line line though at 3.5hp EFI, I may need to adapt it to SFI though at that small a size, Syringe Fuel Injected. Do you think it'll catch on ?

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Old 24 June 2012, 17:36   #14
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It will be fine just add some extra petrol and give it some rpm. My honda 4 stroke mower loves old 2 stroke. All 4 strokes can burn oil and the 2 smoke oil may actually do some good and give it a good clean out.
Other old mix goes in the Subaru with extra petrol added.
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Old 27 June 2012, 08:40   #15
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Interestingly, Suzuki now do a 15hp fuel injected outboard that does not need a battery.
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