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    2008 Honda outboard 150 hp running rough no power

    If boat was running good then just started running bad, and you think you have bad gas that is first thing to check 80% of the time its gas. You need to have a can of gasoline to check for bad fuel as i have see entire contents look clear and smell like gas when you empty the fuel water...
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    2004 Honda 150 water in trim fluid & trim motor overheats

    How are you seeing (the trim water is still creamy) and purging the fluid is this thru the ram seals or when you pulled the electric trim motor? If you have water in the trim unit on an 2004 motor it is likely a cavity hole in the bottom rear of the unit as they didn't get grounding straps...
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    Honda bf150 vtec 2006 , power loss

    Check compression, 175-225? These engines have mechanical valves require a valve adjustment from time to time 400-600hrs. Adjusting valves back to spec will affect compression. Also there could be internal carbon buildup in combustion chamber try ring free or quick clean in the fuel to remove...
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    Bf150 dtc 14 iacv troubleshooting, honda gurus help please??

    starter rebuild shop can replace that solenoid for fraction of buying new starter
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    Bf150 dtc 14 iacv troubleshooting, honda gurus help please??

    what you just described, sounds like your starter or starting system could be issue. Pull your starter off engine, and reconnect wires, hold it in in your hand, have someone turn the key for it to spin over try this couple times. Also look down starter hole at flywheel see if you see water or...
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    Bf150 dtc 14 iacv troubleshooting, honda gurus help please??

    test fuel pressure if ok, then try cleaning IAC valve? I you are having to advance the throttle, and it starts and runs then good chance its IAC valve.
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    Mercury 150 4 Stroke running rough

    Describe more of running rough, Is your engine surging in RPMs, does it seem like its missing at what rpm does it run poorly. Have you checked the boat fuel water Seperator as a full separator will allow clean gas to pass thur but if you rev the engine it can get suck up some water into the...
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    Honda bf150a overheating

    hot at high rpm 5500 did you check clean replace pressure release valve. yes its a pain to get at the back bolt
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    2004 Honda bf135 milky gray oil

    Rare for Honda 135 double lined stainless head gasket to go bad. Do a compression test? start with bottom cylinder that's where they usually blow. if compression is low like 50 psi there is a chance the head gasket over headed and head warped. but If compression is still good 150-225 could be...
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    2008 BF150 - Check engine light is on, no unusual beeps, no saved codes

    Have you checked the fuses #1 and #5? Service manual A/F sensor heater troubleshooting Page 5-89 starts with resetting the ECM does your healthtech scanner have the ability to do that? If you check voltage with a multimeter at the a/F sensor harness side the green and white top left #1 of the...
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    2008 BF150 - Check engine light is on, no unusual beeps, no saved codes

    How many Hours on the engine? If you run on muffs with a splitter also going to flush line you will get sufficient cooling water to keep it from overheating when testing. Could be heater line portion of o2 sensor has gone bad. A/F sensor abnormal current will make the MIL light stay on. Do...
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    Prop for Grady 192 Tournament?

    Grady is a heavy boat with a deep V, couple thoughts where did you mount the 150 engine on the bottom hole or one up on the transom? it might not improve your speed raising it and will defiantly affect your hole shot if too high, probably should mount same as the 130. As for the prop the solas...
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    2005 BF225 Overheating at idle

    Suggest you drop lower unit and slide a hose, can get correct size hose and garden hose attachment from hardware store, hose has have a snug fit over the water pipe and connect to garden hose, turn on faucet and run the engine. If it overheats then there is something definitely going on with...
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    Honda BF150 2009 on a Honda 2000 controller...will it work?

    I pulled a 130 off a 2003 Triumph and installed 2009 BF150. need to get the 150 wiring harness and key switch, it was easy on a triumph because deck plates unbolt and center console folds in half made it easy remove old harness and key switch and install the 150 harness. The shifter controller...
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    2006 HONDA 150 ALARMING

    With engine cove off, start engine if you hear the sound? Pull the black speaker wire that attaches to the starter (the spade connector) on the starter and see if sound stops. If pulling the speaker wire connection on starter sound stops then something in the wiring likely the key switch is...
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    2010 BF150a oil pressure light flickering

    Specs on oil pressure test on page 2-34 in shop manual 21psi at 2000rpm taken from removed oil pressure switch location. If no oil pressure try replacing the oil pump, its bolt on and can be had from ebay. Agree with opening up and inspecting oil filter if metal flake is seen. Could be from...
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    New head on Honda 60hp

    Last time I sent a head to machine shop they didn't put the springs on the right valves. The springs on a 150 are color coded with and pink or black paint markings for intake and exhaust. Not sure on your engine. check your shop manual if yours arevcolor coded to intake and exhaust ask them...
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    New head on Honda 60hp

    Did you use assemble lube when installing cams and valves? Could empty and refill the crankcase to make sure everything is wet with oil before starting. I usually start them initially without using cooling water and let run a half a minute then do compression test, if within spec I'll run...
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    Honda BF150 Overheat mystery

    There are no cooling passageways from the head to the exhaust manifold on the 150. So acid flushing to get that sensor to stop over heating wont work. The cooling chamber in the exhaust manifold is filled from either the small black tubes off the pressure relief valve or up from the bottom slit...
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    Honda BF150 Overheat mystery

    Run engine til engine warm thermostats open in water or on muffs and check if water is flowing out the thermostat housing by disconnecting the black tube that goes to the exhaust manifold. If no water or limited flow your not getting enough cooling water to the exhaust. When you drop the lower...
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