Molon_Labe 731 #1 Posted January 16, 2015 My 416-8 has an adjustable seat bolted directly to the seat pivot plate. On the bottom of the pivot plate are 2 coil springs with with built in bumper pads. With my 200 pounds in the seat the springs are completely bottomed out on the bumpers making the ride pretty darn rough and there are too many pins and screws in my back for any trace of comfort with this set up. I found a set of 520H flat springs, just like my C series have and went to work installing them. Original spring and bumper 520H springs The captive bolts that connect the seat adjuster to the pivot plate had to be cut down and the steel spacers removed in order to attach the flat springs, at the same time 2 new 1 1/2" bumpers were installed to support the pivot plate on the seat pan. This would have worked just fine as is except that the seat switch was depressed all the time. I put one of the original seat springs back to use by attaching it to the seat switch pin so it now holds the seat off the switch when unseated. Some skate board tape protects the seat pan from the spring. The difference in ride quality is like night and day! 3 Share this post Link to post Share on other sites
JC 1965 1,528 #2 Posted January 16, 2015 Very nice, thanks for sharing. 1 Share this post Link to post Share on other sites
