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I have a question on adjusting and sinking in carbs on a 96 formula 3.
I am new to snowmobiles but I am a do it yourself type guy and I'm having trouble with my sleds carbs. I took them apart and cleaned them when I took them apart I counted all the turns of the screws so I could put them back the way they were. I also replaced the choke cable the old one was sticking. Now that I've done all this the machines Idles very low and stalls out most of the time. I'm wanting to adjust the Idle on it but I'm not sure exactly how to get it right and also how do I make sure they are all in sink. Please any help will be greatly appreciated.
 

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If you have everything else set up, the best way to adjust the carbs is with vacuum gauges. Some carbs have a port to plug a hose onto, some don't. I use a differential pressure gauge on my twin carbs. Doo it on a cold day. When vacuum readings are all the same, and your RPM (1900 for your sled) is right, it's good. Idle is change with the weather.
 
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