yea check your carbs and if possible check your crankseals, One of them may be heating up after you run it and expanding and thats where your getting your air leak
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2001 Yamaha YZ 125
Gold Frame
RG3 Suspension
Answer Pro Tapers
Boyesen Water Pump
Twin Air Powerflow Air Filter
VForce 3 Reeds
FMF Gold SST Pipe/FMF Titanium 2 Silencer
Excel Colorworks Rims (Gold)
Pro Circut Magnesium Clutch/Ignition Covers
Hardstyle USA Sprockets/DID VM X-Ring Chain
Wiseco Hot Rods Crank w/ Athena Cylinder Kit
Braking Rear Caliper w/ Braking Wave Rotors
Rifled Carb
RG3 Triple Clamps
Hinson Pressure Plate, Basket, Springs, and Hub
Hydraulic Clutch Lever
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