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I have 40 hp suzuki outboard 2 strokes....was on the dam the whole day ....towards the end of day the one motor would make high pitch sound then cut out...then it got more frequent

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6ya6ya
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Posted on Jan 02, 2017

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Editor925
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SOURCE: 2008 Yahama 90 2 stroke outboard lower unit fluid leak

Ok by fluid I assume it is gear oil leaking yes?
There is every chance there is the smallest seal leak there that may only be present once the gear case gets a little pressure in it, either through use, or through expansion as the leg heats sitting in the sun even. Have you got a new washer installed under this screw to properly seal it? Usually a nylon type washer is best.

Also, how do you know the lower unit is not leaking or have water intrusion? Have you drained the gearbox oil recently? If so what color was the oil, milky looking at oil or good semi-transparent oil color?

Posted on Mar 16, 2009

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SOURCE: suzuki 4hp two stroke impellar

Dropp the lower unit, should be only 4 bolts holding it on. Impellar housing should be located right on top of the lower unit. four screws it the housing slides off the shaft, insall in reverse order with ne gaskets, make sure you re- align the waterhose/pipe from the lower unit back to the head

Posted on May 01, 2009

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SOURCE: 1974 johnson outboard motor 25hp stalls when hiting high end

Not familiar with that specific motor but had similar vintage smaller HP Johnsons. From my experience it sounds like it could be that the high speed carb adjustment is too lean. What I would try is running the backing off the high speed screw 1/4 turn to 3/4 turn, then test. If works better, screw back in in 1/8 turn increments until the problem recurs, then back out 1/4 turn and leave it there.

Posted on Jun 30, 2009

bytestream
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SOURCE: need firing order for a 86 chrysler outboard boat engine

Firing order 1 2 3 is common on most three cylinder outboards. 1 3 2 is the only other combination.

Posted on Jul 26, 2009

alicantecoli
  • 22219 Answers

SOURCE: 40 hp mariner outboard 2 stroke oil leak at

without seeing it in front of me its difficult to advise,i had a mercury but it wasnt oil injection so i iam not sure exactly how this injection system works but i should imagine its nothing more than a O ring thats perished or a copper washer needs cleaning with some wet and dry.I bought a new 4stroke mercury in the end because i got fed up with fuel consumption from the 80hp two stroke ,this four stroke 50hp will do about 12 14 nautical miles to roughly 6/7 litres of petrol at about 1200 rpm because iam only a sunday driver and the bumping on the waves makes my back ache unbearable,Well this is the land of fiesta /siesta /manaña --spain .Have a closer look and see where its leaking its only a mechanical pump running off the engine ,so it will have a push rod with some sort of diaphragm that pumps a tinysquirt of oil into the crankcase so it can mix with the incoming fuel ,nothing complicated

Posted on Sep 17, 2009

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