I have a '72 and a '74 DT 400. This may sound stupid, but I can't figure out how to remove the seats. Can anyone direct me to someplace on line for an exploded view or just tell me how? Thanks. Mike

There are two bolts in the back on either side near the last mount for the exhaust. Undo those and the seat slides to the rear coming off.

Hi " shurely the 1972 is a 360. ? The 1974 model - should be key latched, when open thers two slide hinge pins , held with R.pins