Recent content by cathken

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    Outboard stops suddenly while cruising

    My 1991 90hp johnson outboard stops suddenly after cruising for a half hour to an hour.it powers a 16ft baja which i operate at 3500 rpm.after stopping it will not restart until at least an hour has passed.at that time,the engine restarts and runs normally again.i suspect the power pack is...
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    Water flow problem

    I have a 2003 df15 4stroke.I have recently purchased this engine without a manual and have encountered a problem with water flow.I start the engine which runs ok,but no water flows from the outlet hole at the rear.I do not see any outward signs of overheating,however I assume the lack of water...
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    hesitation at acceleration

    i have a 1989 sea ray powered by a 7.4l bravo one carburated engine.the engine was recently rebuilt and operates with good power and acceleration once underway.the problem is that,after warmup at idle,the engine hesitates upon accelerating-sometimes dying and other times waiting several seconds...
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    Trim/tilt pump problem

    1989 sea ray with bravo one outdrive-i lowered the outdrive and after completing the downward movement,the outdrive came right back up while the pump motor continued running.i am assumoing this is a relief valve failure.if so,is this the down pressure valve failing or the up valve failing.i want...
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    Using auto parts for flywheel/harmonic balancer

    I am completing rebuild of a mark iv merc which uses externally balanced flywheel and harmonic balancer.what are the problems with using equivalent auto parts for the marine mark iv?
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    engine viration

    i operate a 1989 searay with a 454 mercruiser engine and bravo one outdrive.i recently replaced the engine with a new long block,which now has 15 hrs of breakin time.i also learned during swapping parts from the blown engine to the new block that the blown engine was a 1998 rebuilt.during the 15...
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    4 barrel carb vs performance

    what is the affect on performance if the secondary valves of the 4 barrel carb are not opening upon acceleration.what is the likelyhood that secondaries do not function and how can this problem be verified?
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    coupler or outdrive or what?

    i operate a 1989 searay sundancer with a 7.4L engine driving a mercruiser bravo one outdrive.the coupler is a mercruiser P/N861523A11.the outdrive is new this season.i have operated the boat this season for approx 20 hrs at normal speeds.recently while operating the boat at 3200 rpm and...
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