2006 YAMAHA YZ450F tire size

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Page 74 of 650

YAMAHA YZ450F 2006  Owners Manual SPEC
2 - 3 Transmission:
Primary reduction system Gear
Primary reduction ratio 61/23 (2.652)
Secondary reduction system Chain drive
Secondary reduction ratio 49/13 (3.769)
Transmission type Constant m

Page 626 of 650

YAMAHA YZ450F 2006  Owners Manual 7 - 12
TUNSETTING
EC72N000
Drive and driven sprockets setting parts
Part name Size Part number
Drive sprocket 
1 
(STD) 13T 9383E-13233
Driven sprocket 
2 
(STD)47T
48T
49T
50T
51T
52T1C3-25447-00
1C3