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    Yanmar 2gm20 won’t start

    I take good care of my engine and I run it every week or at least every other week even if I don’t take it out on the water, I still run the engine for the last couple of years now today I go out for memorial day of the engine won’t start. I tried running at five or six times for about 10 or 15...
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    1997 23 LS anchor question

    Does anybody know what kind and size of anchor the anchor locker is designed to hold?
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    Shifting into reverse problem Nissan 6 horsepower four-stroke

    So we inherited this engine it's in pretty good shape cosmetically we're trying to get it running good but once we have it I linked it'll shift into forward but is grinding gears going into reverse and won't go in. When the engine is off if we turn the propeller while trying to shift into...
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    Shift rod issue

    When servicing the water pump and attempting the reassembly of the lower unit we had the lower shift rod in the wrong position once we figure that out and took the lower unit back off now the shift rod doesn't engage anything inside the gear case it just spins and only moves up and down about an...
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    Electrical Issues

    Chapparal 204 SSI 4.3 GXI E engine, now have an alarm that will not stop (replaced the alarm and an oil pressure sensor, all guages are normal and working) Now new issue have found that my new Boss radio amp continously blows 15 amp fuses..... the only thing that happened before this all...
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    Alarm won't turn off Volvo 4.3gxi

    So I had my chaparral boat with a Volvo Penta 4.3 gxi the sitting for a couple of months and then when I went to start it up the alarm sound that turns on when you turn the key and it's supposed to turn off when the engine starts would not turn off. All gauges work and we're reading normal...
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    VP 4.3 GXI. How to replace throttle handle tilt trim switch

    I cannot find this anywhere. The spring has gone so th switch doesn't return to mis position when moved up or down. I have the switch coming but how do I get to it. Is is a side mount chaparral 204 said 2004. Thanks
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    Fisher Avenger 14 wiring question

    I am working on a 2005 Fisher Avenger 14. There is no battery switch, bus bars etc. Does anyone know how the ground wires come together and end up at the battery? Trying to work with existing harness and not replace it all. I haven't been able to find a schematic anywhere. There is a...
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    Need ID Please

    https://www.facebook.com/marketplace/item/712514445838026/ hoping this like will work Can anyone ID this for me? They say starcraft but I'd like to know year and model thanks
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    Tilt trim down quits randomly

    4o hp merc 4 cyl 1997 occasionally the trim down will not work and will always trim up but the button on the motor and the button on the remote control will not work for trimming down. I can switch the wires inside the engine reversing the polarity to the motor to get it to go down but not up...
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    Upper end cap oil seal blowing out?

    0G369283. Merc 40 hp 30 jet 4 cyl 1996. Was having a problem with an exhaust leak so took off the flywheel down to the flywheel shaft and what I saw was the upper oil seal loose it had worked itself out of place. I reseated it it seemed to go in nice and tight it was not damaged. That was the...
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    40 HP 30 jet dies with cowling on

    0g369283. Have the problem where the engine wouldn't run with the cowling on I detected some water leakage at the bottom part of the powerhead I removed the powerhead and replace all powerhead and middle section gaskets I replaced the studs and the correct nut reinstalled the power head. Engine...
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    Upper oil seal leak?

    1996 40 hp 30 Jet....have the classic symptom motor wont run with cowling on....replaced all lower gaskets. Now when it runs I have oil leaking down from the top and the exhaust leaking from upper seal under flywheel smells strong and burns your eyes. Anybody ever heard of this? What's the...
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    Merc 40 4 cylinder 1996 exhaust troubles

    I reworked some stuff in the powerhead then when I attach the powerhead it was leaking water at the bottom seal I tried retorquing it it was still leaking I took it apart and put a new gasket and it was still leaking eventually I put some RTV on the gasket surfaces and it stopped leaking water...
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    Question on removed Oil Pump

    I have a 40 HP Mercury 1996, the oil pump has been removed and I am using premix gas. I recently went over the powerhead, now putting back together, am I correct to assume that I do NOT need to put the plastic Oil Pump gear back onto the crankshaft when re assembling? Since it is not doing...
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    Testing temp alarm

    How can i bench test the sending unit for my overheat alarm. 0g369283 40 hp 30 jet 1996
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    When to remove reed cage and center main bolts

    Good evening I am in process of tearing apart my 40 horsepower Mercury powerhead and the manual says to bend back the tabs on the Reed cage bolts and Center main Bolt the next step it says to remove 17 both securing the crankcase cover to the block but it never says when to remove the Reed cage...
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    Manual needed

    S/N 0G369383 merc 40 hp 1996 need source for shop manual to do a rebuild. Thanks
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    Compression issue

    My 1996 merc 40 sn 0g369283 was running fine and then all of a sudden one day developed a knock in the top end. I thought of doing a compression check first on the top cylinder is 108 and the other ones are all 1:05. I am thinking I should keep running it as long as I can get it to run and then...
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    Merc 40 stalls

    0G369283 SN. 96 Mariner 40 hp30jet. The engine is new to me call so it is no longer a jet it's been converted to a prop Drive. What I've done, checked compression 118 to 120 on all cylinders, replaced water pump and gear oil, replaced water separator cartridge and inline fuel filter, got new...
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