KTM 300 Top End Rebuild Part 3 Ring Gap and X Dimension

Part 3 of KTM top end rebuild. I go through setting ring end gap (VERY IMPORTANT!) and conflicting information from vertex info sheet with piston, KTM FSM and online vertex info. Info sheet with piston is 0.42mm min, KTM is less than or equal to 0.4mm, Vertex online is 0.3mm min. I went with 0.3-0.4mm. I measure the X Dimension (Piston Protrusion) using a little 3d printed holder you can download here: https://www.printables.com/model/1468... File for rings: https://www.amazon.ca/Crescent-Nichol... Fancier: https://www.amazon.ca/Proform-66785-P... Chapters: Chapters: 00:00 - Intro 00:20 - Ring gap end spec 03:00 - Place ring into bore with piston and measure end gap 06:15 - End gap filing and type of file 12:15 - Measuring X Dimension.