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    Tune up '98 Johnny 150HPV6 w/o OMC Ignition Analyzer?

    I have the subject motor, 60* V6, with Optical Ignition. It has been great, however, I want to be prepared to do a link and synch on it in the future. The OMC Service Manual I have, identifies a "OMC Ignition Analyzer" as a key tool to set ilde pickup and max timing. The OMC Ignition Analyzer...
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    Merc Gearcase interchange?

    I threw a rod on my '77 Merc 1500 (inline six, longshaft), with a 4-1/4" gearcase. I replaced it with a '93 Merc 135V6 (longshaft) with A 4-3/4" gearcase. The inline's gearcase is still good, will it fit the new motor? I have props for both size gearcases, and the gear ratio is the same, so...
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    What about rigging up an auto drain for an I/O?

    What is you replaced the manifold and block plugs on a V6 MerCruiser with small diameter (3/32") brass hose barbs. Then you route hoses from the barbs to other barbs installed in the Y exhaust pipe. While running, the motor would leak some water from the block and the manifolds, but it would...
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    Problem with Penn 320 Reel

    I was out fishing Saturday, when the subject reel became progressively harder to crank. It went from working fine to almost impossible to turn, in a few minutes. Upon disassembly, I found the brass fitting that has the handle on one side and rides on a stainless rod was seized to the rod...
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    Are there any aluminum high-performance props?

    I would like a bow-lifting prop for my 21 SeaSwirl/Johnny 150HP combo. Aluminum props are fine since with the shallow draft of the boat, I hardly ever hit bottom. Does such a product exist?
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    What are the odds of this?

    My dock has mooring whips. In the last 20 years I have unhooked the whips, untied the lines and pulled away in my 19' Searay Bowrider, thousands of times, without a problem. Two years ago I trade the SeaRay for a 21' SeaSwirl Bowrider. During those two years with the new boat, the rear...
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    Will 2 cycle outboards outlast 4 cycle OBs?

    Does the oil in a 2 cycle motor help control corrosion of the outboard's intake, block and exhaust systems? Will a 4 cycle OB corrode faster in salt water?
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    Two Data Points, Priop Suggestion?

    I have two data points, and want to choose the best prop for fuel economy. The boat is a '98 21 Seaswirl Dual Console with a '98 150V6 Carb'd Johnny. The boat is decidedly bow heavy, but with that Looper has great hole shot. It came with a standard OMC Alum. prop of 17" pitch. I get 5200RPM...
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    What is idle and max timing for '93 135V6

    My Aftermarket service manual says idle pickup timing should be 7 degrees ATDC, and max advance is 21 degrees BTDC, unless the timing decal states otherwise. Anybody have the real info?
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    Why does my carb flood?

    I have a '93 Merc 135V6. The lower carb seems to flood, althought the float is set correctly and the inlet needle seams to seal very well. Is it possible that the mid or upper carb are actually flooding and the fuel travels thru the intake manifold, recirculation hose or some other path...
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    Why did my voltage regulators burn out??

    Folks, I just acquired a 1993 Merc 135 HP V6. It has the dual 20A voltage regulators, fed from the 4 yellow wire stator. When I got it one V/R was burned out. I had it afew days and the other V/R burned out. I can replace them, but I sure would like to know why they burned out.
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    Anyone have an Avenger still running?

    I have a 16' Avenger. I just installed a 135HP V-6 Merc, after my old Merc 1500 went to Merc-Heaven. Performance is excellent.
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    Accumulator on '93 Merc 135 V6?

    I have the subject motor. The exploded parts diagram show an "Accumulator". What the heck is it, where is it located and what does it do? Serial num is 0D261920
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    Wrong oil used in '07 150HP Optimax?

    My neighbor has a '07 150HP Optimax. His son-in-law filled the oil tank last week and now the motor does not run properly (rough, low power etc). It is possible that the oil tank was filled with TCW-III outbaord oil versus DFI oil. Is this a problem, and how big of a problem, or should he...
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    Where does the fish box drain?

    My '98 SeaSwirl 21 Dual Console has a large livewell in the bow, between the bow seats. It has a drain, which appears to go into the bilge. It runs slowly, and appears to stop draining after a while. There also seems to be a center passage from the transom forward, which could be a central...
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    Is it a 2.0L or 2.5L block??

    I looked at a 1993 Merc 135 HP V6. Does it have 2.0L or the 2.5L displacement?
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    Why not ride on the bow?

    Saw an article in the local coastal NJ newspaper. A 40' cruiser operating out of the marked channel, ran aground in Barnegat Bay. Two young girls sitting on the bow were slammed into the bow rail and went to the hospital with internal injuries. In NJ, anyone who sits on the bow of a boat...
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    Create a flush port on a Merc inline

    Is there any way to build and install a flush port on an inline? It seems that if fresh water was introduced into the water jacket over the head, it would flush the head, exhaust port and waterpump. It would seem to be a simple matter to put a tee into the tell tale hose, or use the other...
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    Anyone ever try a Sleeve Transplant?

    I have an 850 inline with severly scored cylinders. I also have an inline six with one thrown rod. It ironically has newly bored cylinders and OS pistons. Is it possible to transplant the sleeves, pistons and wrist pins from the inline six to the inline four? Note: the inline 6 has the...
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    '98 Johnson 150HP has big smoke upon restart

    My '98 Johnson 150 Ocean Runner smokes, stalls and seems to load up upon restarting after it sits for an hour or so. Scenario: Cold start is good, FastStart system keeps motor running for nearly a minute, prior to idle down, and at that point it runs good with a normal amount of smoke...
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