H1 airboxes
Posted: Wed Jan 15, 2014 2:26 pm
could anyone with the knowledge tell me whether the pre72 h1airbox canister is the same as 1973 and onwards apart from the obvious colour difference. 
left 69-71 right 73-75
the 72 was modified after a certain frame number
here's a shot of the tip of the B airbox
Gary T