Yamaha YZ125 Owner's Manual
Also see for YZ 125: Parts catalogOwner's service manualOwner's service manualOwner's service manualOwner's service manual
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ENGINE8-4Example:EAM30599CARBURETOR SETTING PARTSA. Lean (larger diameter)B. Rich (smaller diameter)C. 1st taperD. 2nd taperE. 3rd taperF. 4th taper1. Full closed2. 1/4 throttle3. 1/2 throttle4. 3/4 throttle5. Full opena. Main nozzlePart name Size Part numberMain jet Rich #470 137-14143-94#460 137-14143-92#450 137-14143-90#440 137-14143-88(STD) #430 137-14143-86#420 137-14143-84#410 137-14143-82Lean #400 137-14143-806BFY43-74-36BFY43-74-26BFY43-75-3Pilot jet Rich #50 4KM-14142-50#47.5 4KM-14142-47#45 4KM-14142-45#42.5 4KM-14142-42(STD) #40 4KM-14142-40#37.5 4KM-14142-37#35 4KM-14142-35#32.5 4KM-14142-32Lean #30 4KM-14142-30ThrottlevalveRich(STD) 4.0 1C3-14112-40Lean 4.25 1C3-14112-42Jet needle Rich 6BFY44-72 284-14116-K26BFY44-73 284-14116-K36BFY44-74 284-14116-K46BFY44-75 284-14116-K5Lean 6BFY44-76 284-14116-K6Rich 6BFY43-72 284-14116-J26BFY43-73 284-14116-J3(STD) 6BFY43-74 284-14116-J46BFY43-75 284-14116-J5Lean 6BFY43-76 284-14116-J6Rich 6BFY42-72 284-14116-H26BFY42-73 284-14116-H36BFY42-74 284-14116-H46BFY42-75 284-14116-H5Lean 6BFY42-76 284-14116-H6Part name Size Part number |
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