Question about Raymarine Linear Feedback Unit For Outboard Engines, 12"

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I have twin 2004/2005 90 HP Honda outboards on my houseboat. These engines are carburatored. They are controlled thru Commanders. When shifting from forward to reverse or reverse to forward the engines die intermitantely. I have changed spark plugs and fuel filters. I have also raised the idle to 1100 rpm. The engines seem to run and idle very smoothly. This is a serious problem with a 60 ft. house boat, as the loss of an engine in wind nearly caused me to be blown into the shore, and into a dock. Any suggestions would be appreciated.

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Sorry but its a carb ,i nearly bought a honda engine with like this but i plumped for the mercury with fuel injection ,you will need to remove the carbs and put them on the kitchen table and strip and clean them right out then rebuild and refit and get the mixture on the idle right ,fuel to air mix should be about 14 to one ,this is done on a jet on the side which i suspèct is corroded and blocked ,then their should be a air bleed screw as well ,if this all to complicated which it is then get the man from the dealer to do it for you .you have a idle jet .compound jet and a main jet and trust me if you do not know then dont play with it .On my single outboard i rewired it so when its warm i can put in drive and start in drive to stop wear on the dog clutches ,dont like changing them either as they are expensive and difficult when engine is used in salt water and the bolts corrode ,also change oil regular in the bottom diff unit ,i do mine every year when i paint the bottom ,and i use car diff oil EP90 as that mercury stuff is so expensive and i begrudge paying for it when i have drums of oil here in the yard ,i also use the car spark plugs and oil filter for a panda .When you are moored up and not using the engines take the covers off and in the bottom of the float chambers are drain screws ,so when parked up just drain the carbs of fuel and then they will not clog up with that white powder where the petrol dries out

Posted on Jul 22, 2010

  • michael_b767 Jul 22, 2010

    Thank you for the info!!

    Would any type of carburator cleaner, or fuel additive help?

  • Colin Stickland
    Colin Stickland Jul 24, 2010

    carb or injector cleaner might help but normally you just remove and strip them as its quicker and easier ,also drain the petrol out of the carbs when not in use is the best bet

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