1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 124Get this manual
1 1Remove: Cover (Carburetor switchLeft) (D Throttle valve cable
INSPECTION Inspect: Carburetor body Contamination - CleanNOTE: Use petroleum based solvent for cleaningBlow out all passages and jets with compressed air
2Inspect: Valve seat (D Needle valve (2) WearIContamination