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    1970 evinrude 115 - cdi pulse pack shortens out starter?

    Bad connections at the battery will cause the 12V to drop low and if the power to the ignition drops the ignition system would not work. Newer ignition systems that are self energizing does not affect if the 12V drops but if the starter do not turn with good RPMs. That is why it is important to...
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    Can I use any 2 stroke oil?

    As topgun3690 says use TC-W3 two stroke oil. There are other two stroke oils for air cooled two strokers. TC-W3 (two stroke water cooled) run at cooler temperatures and TC-W3 oil produce less smoke. Two stroke oils for air cooled engines leave more carbon in the exhaust ports and it maybe build...
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    1996 Force Mercury 120hp starts then dies HELP

    #Jiggz, no I am saying that the diagram you posted i #10 is wrong but the one you posted in #13 is right. If he will troubleshooting he has to use the diagram for the Prestolite system and I imagine he will figure it out then. The head of this thread says 1996 120Hp Force Mercury and as it is a...
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    1996 Force Mercury 120hp starts then dies HELP

    The 125Hp did not have the CDM ignition system. They had the Prestolite system.
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    Is this a L drive or not?

    Well the concept and thought was good BUT then the customer and boat owners was new to the boating, similar to Force outboard as a package with Bayliner boats. Cheap stepp in boating and no know how in maintenance. As I am from Sweden and Volvo Penta introduced the Aquamatic in/out drive in mid...
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    Milky fluid

    First check the compression in all cylinders. If low or no compression in bottom cylinder you have a bad head gasket. To pull the exhaust cover and check the gasket can be a PIA. The bolts that holds the cover can snap really easy and you have to drill them out and retap the threads.
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    Is this a L drive or not?

    Yes it is.
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    Force 120hp won't start

    Looks like this is a power head to a L-drive. You can see back fire through exhaust manifold tube that are for the L-drive power head units. Do as The Force Power suggest, do the link and sync.
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    Coil Testing.

    To test an ignition coil you need a spark tester with a adjustable gap. The coil should jumpa a spark for 3/8 in or more in atmosphere. But there can be other issues that cause no spark if you check with the coil connected to the engine. To be really sure you have to test with a coil tester at...
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    1986 Force 50

    Check and clean the points. Gap them to 0.015 in.
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    Unadjuable timing

    What engine are you dealing with? Brand, year model, horse power? Are you checking the timing at the top (number 1) plug?
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    Chrysler 55 one cylinder occasionally fires

    You can make that gasket 47-F286555 for the lower split of the gear case by your self. Get some gasket paper and cut it out . When assembling it coat the gasket with a thin amount of some liquid gasket such as "Permatex Avaition form a gasket" or equal. Do not use a thick gasket paper...
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    Hub repair

    No replacement hubs in the market for these old props I think. I have not sean any. Ebay or Craigslist would be a source for used props.
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    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    As topgun3690 says, the water level need to be above the water impeller housing. The impeller is not self priming, it need to bee submerge. Water level need to be at least 1 in above the top of the impeller housing, 4-5 in above the split line of the gear case. Regarding running with muffs. Are...
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    Bad trigger? Can’t adjust timing

    The rectifier/regulator can interfere and make the ignition system to act confusing and fail. Outboardignitiondotcom has troubleshooting chart, go through that chart and check out with your engine.
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    Bad trigger? Can’t adjust timing

    When I mention magneto I was meaning the trigger ring that moves to advance the timing. I use the wrong word that was why I changed to trigger ring. I suppose your engine has the Prestolite ignition system with 2 CDI boxes (blue or black) and 4 ignition coils. I would suggest you to disconnect...
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    Bad trigger? Can’t adjust timing

    Okey, it will start if the spark advance is about 0-4 dgr BTDC at idle speed. But it would not speed up in RPM at WOT if the spark advance is 0-4 dgr BTDC, it would die. As it is starting the triggers are okey if it is running at all 4 cylinders. If the spark advance is 0-4 dgr BTDC at WOT it...
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    1990 15 hp Johnson won’t start, sort of sounds like it’s sucking air/leaking air

    Please, please David Wright forget about a bad flywheel key. That key is order, the gap at the top of the wheel is from factory. The length and height of the key will set the flywheel in right position. Torque the flywheel nut to right value and start to troubleshoot the ignition system. As...
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    Bad trigger? Can’t adjust timing

    First of all check if the flywheel key is shared. You can do it without pulling the flywheel. Pull the plugs and put a screw driver in top hole (cylinder #1). Find TDC by turning the flywheel CW. At TDC the zero mark at flywheel should line up with the lager line at the timing sticker or timing...
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    Reduce kick when putting in gear

    As racerone says, the idle speed is too high. It should be 650-700 RPM in gear in water. Check the compression, it is always good to know the numbers. As you says it stalls when put in gear with lower idle speed. That can be caused by a lean setting of the air/fuel mixture screws. Try to set the...
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