Choose standard or over-size bore: Standard Bore, .25mm Over, .5mm Over, .75mm Over, 1.00mm Over, 1.5mm Over. Select the WSM SKU that matches your engine bore.
Option
Bore
WSM SKU
Standard (this listing)
47.00 mm
50-536K
+0.25 mm
47.25 mm
50-536-04K
+0.50 mm
47.50 mm
50-536-05K
+0.75 mm
47.75 mm
50-536-06K
+1.00 mm
48.00 mm
50-536-07K
+1.50 mm
48.50 mm
50-536-09K
OEM References
55X116310096
Fitment
Fits selected Yamaha models — see table below.
Yamaha
Model
Engine
Years
Grizzly Hunter
80
2007–2008
Grizzly
80
2005–2008
Raptor
80
2002–2008
YFM
80
1986–1988
Fitment confirmation: Please confirm suitability using the OEM references, fitment guide and product images before ordering.
