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Discussion Starter #1
Picked up the 140 and the matching Piranha exhaust. And bought a real Mikuni vm24 off a kx65. Any ideas on a starting point for jetting? I tried searching but everything I am seeing is for the vm22 or vm26. This will be on an ATC70.
 

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Discussion Starter #3
The carb did come off a 2stroke engine. But it is not a 2stroke specific carb.
 

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Discussion Starter #5
From another form the guy recommends:
95-98 main
37 pilot
2nd clip from the top on needle
1.25 turns out on air screen
 

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If it's the VM24-512 series, you should start with a 25 pilot and a 170 main. If its some other version, no clue. As an aside, the needle jet, jet needle are usually different on 2 stroke vs 4 stroke carbs.
 
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