You can use a bolt and washer with nut to remove rail pins , thread size is 6x1mm, use about a 30-40 mm fully threaded bolt and find a spacer so the pin can be pulled thru , a guide dowel can work , or buy a aftermarket pin tool (press tool) you can find on e bay, you can find the chain guide there too that attaches around the right head sprocket that allows you to roll in the chain