Recent content by Toshi

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    Carburetor tuning on muffs

    Hmmm. How to do with an assistant?
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    Carburetor tuning on muffs

    Thank you, I will start over the adjustment. This time, I will start from the middle carb.
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    Carburetor tuning on muffs

    jimmbo, Thank you very much for the comment. I don’t see any visual sign of fuel/oil leaking from the crankcase seam. I will check it with soap water to make sure. No blowback from the carbs. I will check compression again. Maybe the fuel pressure from the disabled VRO pump is not strong enough?
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    Carburetor tuning on muffs

    ct1762, Thank you very much for advice. I switched the middle carb with the top carb. When I spray the fuel mix to the middle carb now placed at top, the engine died. I didn’t see a sudden and hard kick to higher rpm. (I had the idle screw all the way in for this trial on the “middle” carb at...
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    Carburetor tuning on muffs

    tphoyt, I assembled the middle carb back. I will be checking all fuel lines as well as vacuum line again and turn on the engine tomorrow and I’ll see if middle carb gets fuel. Wish me luck ! Putting a new lead ball was not a problem for me. My buddy gave me some. QUOTE="tphoyt, post...
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    Carburetor tuning on muffs

    I put red loctite just for my insurance…
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    Carburetor tuning on muffs

    Just to make sure the path is really clean. I removed the lead check ball and sprayed carb cleaner.
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    Carburetor tuning on muffs

    For middle carb, is it correct not to have Welch plug here? I can’t find any info so far. I believe I should see one Welch plug in this view and I am starting to have a doubt if previous owner or boat shop put the plug in the wrong position.
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    Carburetor tuning on muffs

    On YouTube, a guy was putting red loctite here because he said he saw a leak. Should I go ahead and put red loftier here? If there was a leak, could it solve my problem? I am so desperate to fix this problem.
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    Carburetor tuning on muffs

    Should I remove lead balls also because I don’t see anything wrong with components and holes so far on this carb?
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    Carburetor tuning on muffs

    OK. I removed the Welch plug. It’s hard to see in the picture, but two tiny holes are clean and I can see through them.
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    Carburetor tuning on muffs

    Hi. Compression is 105psi for each cylinder.
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    Carburetor tuning on muffs

    It’s not.
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    Carburetor tuning on muffs

    I will take more pictures if necessary. Please let me know.
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    Carburetor tuning on muffs

    These are pictures of the middle carb. All the holes, gaskets look fine to me. Also, reed valves look fine and well seated. No chipping or cracks.
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