March 22, 201214 yr Yamaha SR400 Year 2000400cc, 4 Stroke, Big Bore Single Cylinder ThumperThey are called choppers because they sound like like a helicoptor when you touch the throttle!Heres a link with some technical info - http://www.bikez.com/motorcycles/yamaha_sr_400_2002.phpThese SR400's just go on forever, nothing goes wrong with them because they are such a simple design. Most of these... View the full article
Create an account or sign in to comment