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Reply with quote  #16 
That carb uses a standard 4150 gasket on that side. 
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Patrick James-President
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Reply with quote  #17 
Idle screws are just shy of 1 turn out.Should I increase the IAB to get the screws out ti 1.5 to 1.75?

I also disassembled the carbs in prep to enlarge port 2.The bowl gaskets tore a little and the block gaskets tore in half.I have scraped a few but always left some type of mark,,,,so my dumb question is what is the best way to remove the gasket remnants without scratching the mounting surface??

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PRO-SYSTEMS

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Reply with quote  #18 
Soak a little carb cleaner on them with a rag, that makes them fall right off.  Use motor oil on the new ones, that helps with pump fuels these days.  

If it cruises good and clean, then leave the bleeds alone, if its a bit rich at cruise, go .010 larger on the primary side bleeds.

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Patrick James-President
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Reply with quote  #19 
Thank you as always! I'm getting close.....
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Reply with quote  #20 
You are welcome!!
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Patrick James-President
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Reply with quote  #21 
Opened up port 2 today.While cleaning the main body I finally noticed the mods you did to the blade,,super cool and pretty much eliminated the tip in issue! We will get these 100% VERY soon!
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Reply with quote  #22 
Super cool!!
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Patrick James-President
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Reply with quote  #23 
Enlarged port 2 to .070 from the verified .060. Just went for a test and the problem has not improved,may have gotten  worse but with the chilly temp the intake air temp was 120*.What would be my next step?? rolling along at 1500 to 1800 RPM when I tip it in it lean spikes to 21/22 AFR and the engine feels like it shut off,let off the throttle and it comes back to idle.Stabbing it at 1500 RPM it still stumbles[confused]

Idle is 23/13 for ARF.
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Reply with quote  #24 
We need to put the air to fuel meter away and listen to the engine. It’s either getting too much fuel or too little. It sounds lean but you just added some fuel and you think it got worse. That doesn’t make sense unless it’s rich and you made it worse by adding fuel. Reduce or increase your idle air bleeds by about .010 (that’s your master control). See how the engine responds to that change not what the meter says.
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