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  1. W

    Backfire from exhaust

    Ok I’ll check that out. Thanks !
  2. W

    Backfire from exhaust

    Sorry for lack of info I’m new to this working on outboards. I’ve taken it to a mechanic (which there are not here) and he said he fixed it by adjusting and cleaning the carbs and putting a water separator on it. I took the boat out still was killing out after it got warmed up. Took it back and...
  3. W

    Backfire from exhaust

    The low 65 was after I had #2 carb float got stuck and flooded that cylinder. I sprayed a little oil in that cylinder and went up 110. Has good spark on all three plugs. Seems like for whatever reason when I put my boat first in it will crank up and get up on plane but after I get to a spot and...
  4. W

    Backfire from exhaust

    Yea the thing about it is cold start runs great but once it sets a bit then it acts up. Cold I can get up on plane a get down the lake.
  5. W

    Backfire from exhaust

    I’m using quick silver oil and my compression is good on #1 and #3. #2 is low around 65. How much should I enrich ?
  6. W

    Backfire from exhaust

    Ok it’s also making a noise at idle every couple seconds that sounds like a bottle rocket kind of a chirp. Can’t tell if it’s coming from carbs.
  7. W

    Backfire from exhaust

    Ok I’ll check the hoses and wrap them. The carbs are all connected on a rod that has plastic fittings so not sure how I could adjust those. Quick back story ran the boat great for several years with no problems decided to change water separator and grease prop shaft shortly after I did those two...
  8. W

    Backfire from exhaust

    Flywheel is good. I’m going to get a timing light and check that. Outboard cold it runs pretty good but when I run it awhile and warm it up then turn it off and let it sit it wants to die and kills our if I put it in gear until it I play with the throttle.
  9. W

    Backfire from exhaust

    Ok I’ll check the flywheel and timing too and check the thread.
  10. W

    Backfire from exhaust

    Sorry I’m new to this how exactly do I check flywheel key and I’ve checked all three coil wires and there right. I took the boat to a mechanic who took me for $500 dollars to change the water separator and clean my carbs , he said he adjusted the carbs too but before I took the boat it wasn’t...
  11. W

    Backfire from exhaust

    I’ve got a 50 hp Yamaha 2 stroke that has a popping/ miss fire sound coming from the exhaust. I’ve cleaned all three carbs payed to have them cleaned again, changed water separator, plugs, new fuel line, bulb and even sea foamed the outboard and it’s still runs like crap. Before I did all that...
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