dewarjs Posted December 5, 2009 Share #1 Posted December 5, 2009 Quote Link to comment Share on other sites More sharing options...
CUSTOMYFZ450 Posted December 6, 2009 Share #2 Posted December 6, 2009 pilot air screw adjustment- 1 1/4 turns out Quote Link to comment Share on other sites More sharing options...
Ajmboy Posted December 6, 2009 Share #3 Posted December 6, 2009 Direct from the manual for YFM350XA (1987 - 2001) Carburetor BTM36SH I.D. Mark 2XK-00 Main jet #145 Main Air Jet 0.6 Needle-clip Position 5J18-3 Needle Jet 0-6 Pilot Jet #42.5 Pilot Air Jet 1.0 / 0.7 Pilot Screw (Turns Out) 2 Valve Seat 2.5 Starter Jet #62.5 Fuel Level 3 - 4 mm (0.12 - 0.16 in) Float Height 11.4 - 13.4 mm (0.45 - 0.53 in) Engine Idling Speed 1,450 - 1,550 rpm Vacuum Pressure at Idling Speed 33.3 kPa (9.84 inHg) Quote Link to comment Share on other sites More sharing options...
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