Post by RuckusNation on Jan 12, 2013 12:18:49 GMT -5
Great video tutorial on how to rebuild your gy6 top end or do a 58.5mm/59mm/60mm big bore upgrade. Anything larger than 60mm requires boring out the case. This video tutorial starts off with the valve cover already removed..
How to rebuild your gy6 top end
How to rebuild your gy6 top end