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MAINTENANCE SPECIFICATIONS

ENGINE

Model

YFM350XA

Cylinder Head: Warp Limit

<0.03 mm (0.0012 in) > * Lines indicate straightedge measurement

Cylinder: Bore Size Taper Limit

Camshaft: Drive Method Cam Dimensions Intake

Exhaust

"A" "B" "C"

Chain (Left)

40.62 - 40.72 mm (1.599-1.603 in) 32.18 - 32.28 mm (1.267-1.271 in) 8.67 mm (0.341 in)

40.62 - 40.72 mm (1.599-1.603 in) 32.18 - 32.28 mm (1.267-1.271 in) 8.67 mm (0.341 in)

Camshaft Runout Limit

Cam Chain Type/ Nomber of Links Cam Chain Adjustment Method

BF05M/90 Links Automatic

Rocker arm/Rocker arm shaft: Bearing inside diameter Shaft outside diameter Arm-to-shaft clearance

12.00-12.02 mm (0.472-0.473 in) 11.98-11.99 mm (0.472 in) 0.009-0.037 mm (0.0004-0.0015 in)

Valve, Valve Seat, Valve Guide: Valve Clearance (Cold)

0.06-0.10 mm (0.00236 - 0.00394 in) 0.16-0.20 mm (0.00630-0.00787 in)

Model

YFM350XA

Valve Dimensions:

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