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Makotosun

Base idle screw and mixture screw settings. AT3 - 125cc

  • custombolt
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Base idle screw and mixture screw settings. AT3 - 125cc was created by custombolt

Big screw idle? Small screw mixture? 1.5 out?
 
13 May 2025 13:42 #1

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Replied by RT325 on topic Base idle screw and mixture screw settings. AT3 - 125cc

Answer is yes--in theory-- providing everything is good. Float level, clean jets & airways, airfilter. The list goes on-- needle jet not worn as can suck past there even at idle in a severe wear case. But I see it's an at3 so the miniature Oring sealing the bowl onto the needle jet setter is critical.although would more come into play as revs rise. So short answer lol--yes 1.5 turns out. Then speed screw as desired. Be sure your choke is in the off possition too.
13 May 2025 14:04 #2

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Replied by custombolt on topic Base idle screw and mixture screw settings. AT3 - 125cc

Started up at 1.5 out. Love the electric start!
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14 May 2025 09:15 #3

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