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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Indeed. HUGE relief! Got any links (or product numbers) for the items you suggested? Interested in trying these sometime after my girlfriend's patience for this nonsense is restored a wee bit. (She LOVES the boat... when it's working. But when it's not, I get, "I wouldn't even own a boat if it...
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Sorry for the delay. Wasn't able to test the motor until this past weekend. The TLDR is that the motor is working better than ever now! :) Based upon the behavior, my theory was that it was starved of fuel at idle, then suddenly drowning when it transitioned onto throttle. Idle circuit was the...
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Will try soaking the gasket in ATF and/or penetrating oil. Definitely like the idea of gently using the screws to lever the fuel deck loose rather than tapping or a chisel! Gotta release when it’s got some lubricant worked into it, right?!?! :)
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Yup. Seems stuck onto carb body.
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Any suggestions how to separate the fuel deck from the main carb body? This carb has clearly not been apart in 30 years. Got the fuel bowl section off with some gentle tapping and I assume the fuel deck comes off… SOMEHOW?!?! Gentle tapping does NADA. Gentle use of a chisel next up?
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    REALLY appreciate your sharing these insights in such detail! Sounds like similar symptoms on my end. Have not yet run it after cleaning out carb. The one finding is that while idle jets were not clogged, it seemed the passages were semi-blocked. This would create ultra lean condition when...
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Really am trying to do what you’re suggesting! :-) The only known difference from last year (when it sorta worked from idle to throttle, but not exceptionally well) is that it sat over the winter outside at the dealer’s lot after they drained it. I like your suggestions. Thanks! Will check...
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Did a quick search on a sight glass bowl. Uncle Tony’s Garage had some good logic why they can be misleading. Easier to tune one with a drain screw. He says to adjust float down to start then raise until gas trickles out. Then raise it one “face of the nut” further ( or 1/6th of a turn). Who knew?
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Also wondering if float might be too high and dumping too much fuel when going on the throttle circuit. Sure wish there was a glass sight window into the float bowl. 🤔
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    New to this forum and botched my reply. It’s buried above, after the quoted stuff. LOL
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Thanks Jimn. Did not think of possible venting issues or opening fuel cap! To answer your Q: No idea how, when or who set idle jet screws at 0.9 out. Bought the boat last summer and that’s how they were set. Have not yet checked these screw settings with a vacuum gauge. Frankly, was happy to...
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    Rough and stalling idle. Repeatedly stalls when prop is engaged.

    Volvo penta 5.0 motor (in 1996 Sunbird Corsair) First time out for second season of ownership. No problems last year with fresh tuneup from dealer Nguyen purchased from buyer (other than seemed hard to start). When cold at put in, it started fine and purred like a kitten. Ran it 3 miles at...
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