I've searched a bit in this forum but have been unable to find specifics about the valve seat angles as delivered from the factory. One of my valve seats on my head is sufficiently corroded to require a new cut.
Were the '77 T140V bikes delivered with a single angle valve seat? Was this 45 degrees?
Is it now prudent to use a 30/45/60 degree cut?
I'ld like to do as much of the work myself as possible and am also wondering what is the least expensive tool I can buy/borrow to do the job.
Were the '77 T140V bikes delivered with a single angle valve seat? Was this 45 degrees?
Is it now prudent to use a 30/45/60 degree cut?
I'ld like to do as much of the work myself as possible and am also wondering what is the least expensive tool I can buy/borrow to do the job.