1972 Yamaha SR 643

Lynn Trapp’s C-23 1972 Yamaha SR 643

This sled is featured on the back cover of Yamaha’s snowmobile brochure. Some of this sled’s features are:

Special Built Keihin Carbs
Custom Crankshaft Brace, like the one used to help Mike Trapp win his 2nd World Championship
Magnesium Chain Case & Mag Cover
Custom Seat
Special “Factory Team Only” Pipes
Low Mass Internal Rotor CD Ignition