2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 376Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 376

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4 Remove the screws (A) and pump cover (B) from the carburetor body; then remove the diaphragm (C) and O-ring (D) 2 Install the main jet and slow jet
! CAUTION
Do not force or overtighten