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Does this seem normal? With the air filers off and the ports blocked if i slide the right slider open the engine coughs and dies, but the left has no effect opening it. when i twist the throttle a both open equally.
 

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hi it one carb is drawing more than the other you need to sync the carbs
 

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i sync'ed them within 1 hg
 

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I would have thought the air flow at idle would be limited to the throttle plate. Therefore, the sliders would not come into play.

Syncing them adjusts the air flow only, right.

I would guess that maybe an idle screw adjustment and or vacuum leak somewhere, but I still would not think the sliders come into play at idle. If itidles fine, sliders operating fine, and accelerator pumps squirt(s), you may just choose todo nothing.
 

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The idle fluctuates about 100 rpm. but yesterday i was working on it and a found that when i sprayed carb cleaner under the left carb the idle would jump from 1000 to 2000 for about 4-5 seconds then back down. also if i partially cover the left carb opening the idle goes up. also if i hold the left slider open the fluctuation goes away. if i partially coverthe rightit almost dies (as it should i think). so i thinking now i have a vacuum leak under that left carb.
 

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cheque that the clamps on the islators are tight
 

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yea i took the spacers out and tightened them
 

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Ok I found vac hose under left carb very porous replaced and now both sides react the same, covereither and it almost dies. Idle fluctuation 90% better but still a slight flucuation almost unnoticable. Some other vac lines are porous.I thinkI will just replace them all.
 
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