Douglasmotorcycles.net
General => Douglas Motorcycle Discussion => Topic started by: a1mick on 25 Jun 2022 at 12:26
Title:
2 3/4 valve springs
Post by:
a1mick
on
25 Jun 2022 at 12:26
has anyone successfully run modern valve springs in a 2 3/4 engine, and if so, what off?