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  1. M

    1997 Merc. 40 HP Upper motor mounts

    I did my upper motor mounts last spring, when I did a full rebuild, its pretty easy pulling everything apart. A few of the nuts for the motor studs are a pain in the ass cause you can only do a small turn at a time. Motor mounts at the time were easy to source and cheap. you will need the base...
  2. M

    Mariner Magnum 40HP - Starting Issue

    @Sea Rider That's a cool trick to clean up the needle seats. Ill give that a go this weekend. Another thing is coming back to me now, I remember when priming and cranking fuel was leaking from the throttle blade shaft... This would be from a dirty needle seat possibly?
  3. M

    Mariner Magnum 40HP - Starting Issue

    @racerone Im quick on the throttle! I almost never wing ding it to the moon when I do get it to light off. haha
  4. M

    Mariner Magnum 40HP - Starting Issue

    @Sea Rider I think the fuel is coming out of the cab throats, only 80% sure on that. damn shame too cause I had every part of the outboard squeaky clean when assembled and now everything under the cowl is a mess. as for the carbs I used carb cleaner and soft small brushes at least 2 time if...
  5. M

    Mariner Magnum 40HP - Starting Issue

    @QBhoy the cables and box are all new so nothing is stiff but I will double check that its adjusted correctly. What a normal amount of time for a 2 stroke of this error to crank before starting?
  6. M

    Mariner Magnum 40HP - Starting Issue

    I ordered a factory replacement fuel enrichment valve. its one of the last parts that's has not been replaced so I guess why not. I tested the old one and worked... I'm hoping the old one is gummed up and not opening/flowing fully.
  7. M

    Mariner Magnum 40HP - Starting Issue

    It sort of has a pressurized feed to the valve. The fuel pump feeds the top carb and the enrichment valve is plumbed into a bard fitting in the bottom of the top carb bowl. So I guess when cranking it should at least have a few inches of head pressure on it?
  8. M

    1997 Merc. 40 HP Upper motor mounts

    is it the 40 4 cylinder 2 stroke? If so, the midplate can crack where the shifter rod goes thru it when those motor mounts get worn out. This shifter rod also ends up limiting the play when you go to check the amount of wiggle that is there so its hard to detect with out removing the lower unit...
  9. M

    Mariner Magnum 40HP - Starting Issue

    Starter spins quite quickly and seems healthy, spark is also quite good. It was maxing out my spark gap testing tool at around one inch. I will order one of those omc priming valves when I get home. it looks like I will have to change the priming routing slightly as that seems to have one...
  10. M

    Mariner Magnum 40HP - Starting Issue

    Racerone, are you referring to this unit? Is it an electric pump or just an on off valve? OEM BRP Johnson/Evinrude OMC Fuel Primer Choke Solenoid 5007356 I have tested the factory enricher valve but I was not sure what a good result would be. It did seem to dribble fuel out when I hit the...
  11. M

    Mariner Magnum 40HP - Starting Issue

    Hello all, I am almost at wits end with this outboard. I love old 2 strokes but I'm starting to wish I bought something newer... Ill start with relative information then describe the issue below. Full rebuild in spring 2021 that included the follow items replaced: -Block bored over at...
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