I am thinking of doing a few upgrades to my 315 montesa. I've heard of a different barrel and head being put on. Boysen rad valve being put in, flat side carb, has anybody done any such upgrades to their monts and was it worth it / how much did it cost. I've put the jitsie shock plates on, different clutch plates.
I don't want to throw money at it as its always only going to be an old 315, but I don't ride often now and have got money left over from selling my 4RT. Any suggestions?
