Recent content by will941s

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    HELP!! Merc 25hp losing spark

    Alright merc experts, I need your help BAD! I have a merc 25, 2 stroke tiller, 1991 year model. Bought it as a dead motor, pretty much everything was bad. Powerhead has all new gaskets, 125 PSI compression now. I rebuilt the carb, new stator, new trigger, new switchbox, new starter, t stat...
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    09' Honda BF115A Fuel help

    Im working on this 2009 Honda BF115A for a friend of a friend. Motor came to me with head removed, talked to the owner and he was having surging/idle issues...sounded like a fuel issue. Head had some corrosion in the exhaust side so I replaced the head and all head parts. Everything is right...
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    2001 Yamaha 50 to 70 carb conversion *done*

    Alright folks, I'm not a newbie to working on outboards; and have repaired, serviced, rebuilt, modified MANY. My newest challenge was modding a Yamaha 50. I installed a shaved head, ported intake exhaust passages, installed carbon reads, modified the exhaust tuner. Motor is on a 16' havoc and...
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    What mercruiser outdrive is this?

    Looking to see what outdrive this is and approximate year model. I can't read the serial numbers on anything, if it helps; it's one of two mated to 454's on a 40' boat. Boat is a 72' year model. There are no water pick ups on the lower units also
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    Mariner Powerhead serial number lookup

    Hello all, Had someone to show me what he thought was a 1998 Mariner 135 Optimax. When he took the cover off, It wasn't a Optimax, it's just a regular old precision blend block replacing the old powerhead....the powerhead had been swapped. I got the number off the plug on the top of the block...
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    2006 Yamaha F150 Fuel PSI

    Hello All, working on a 2006 Yamaha F150 4-Stroke and need help with some info. Motor was bogging down, hard to start and would cut off with anything above idle. I took a fuel pressure reading at the low pressure pumps, theyre at 13 PSI even. Took a pressure reading at the rail and the needle...
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    2005 Sea Doo GTI RFI Linp mode?

    Hello all, i'm a outboard tech that had a customer insist on bringing me a 2005 SeaDoo GTI RFI with a 800CC Rotax engine, oil injected 2-stroke., even though I told him im not all that versed in Skis,. Obviously I want to find his problem so here it is. I took it out to have it to replicate...
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    2005 yamaha 90 4-stroke weird issue

    My 2005 yamaha 90 four stroke died on me a few days ago. Would not stay running. Pulled it home and changed filters and cleaned out the VST box which was full of crud. Put it back together and it starts and runs good but seems to surge a little. Like maybe 50-100 RPM drops then picks back...
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    1989 5.7L Mechanical fuel pump to Electric question

    Wanting to convert my 1989 Mercruiser 5.7L with the Mechanical Fuel pump to a Electric fuel pump. Has a rochester Carb. Question is, what do I need to buy, what pump, relays, etc...? Also what and where should I direct the wiring and whats the max fuel PSI that I should run? Any help would...
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    Quick Easy Simple Question

    Can a 1986 Mercury 45Hp (4 cyl, 2 Stroke) powerhead fit on a 1994 Mercury 40hp (4 Cyl, 2 Stroke) mid section? In other words can I use the 45hp powerhead as a replacement for the 1994, 40?
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    DP-SM Lower Unit Questions (2002)

    Replacing my buddies Volvo Penta DP-SM lower unit, he lost his entire gear set in the salt water....so his old case is not a candidate for rebuild. I have a few questions, sense I have never changed or removed a Volvo Penta Lower unit, just not a lot of them in Charleston. I took it...
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    Merc 40 highspeed problem

    Have a 1996 Mercury 40, 4 Cylinder 2-stroke with oil injection. When I got the motor I cleaned the carbs, replaced plugs, checked Compression (120psi), changed water pump, and replaced the switch box and voltage regulator...which were bad. I also checked the stator, and trigger per manual and...
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    1976 Johnson 55HP Carb Jet

    Posting to ask if I can install the 1977 fixed idle jets on a 1976 Johnson 55hp with the settable idles jets in my carbs? Or is there something different between the two carbs besides the jets. Hopin this will eleminate alot of little issues. Thanks for your time
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    Johnson overheat alarm test

    Installed a 1976 Johnson 55 on my boat, everything is in intact, and I installed a newer Binnicle control on my console for it. I took the Overhear alarm out of my control box, and wired it under the dash. Before I installed it, I tested it by connecting the Purple wire to the POS on a...
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    1976 Johnson 55 EL..Good Find?

    I picked up this 1976 Johnson Seahorse 55 hp today off a guy in Charleston. I was looking for a 50-60hp Motor to put on my stinger 160 CC, and came across one that I cound'nt pass up. $500 and heres what it has. All original paint, all original decals inside and out....that look like new...
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