Ijustwanttoseethephotos
Registered user
Just received a customer's 1976, R90S engine unit for an overhaul. It has the correct black barrels, etc,
but the only number stamped on the engine casing is next to the oil dipstick.
Rather than being the same number as the frame, this number is 7 digits long: 1815968.
I've searched BMbikes where all the R90S engine units seem to have the same number as the chassis.
Has anyone encountered this before or can offer an explanation? TIA.
but the only number stamped on the engine casing is next to the oil dipstick.
Rather than being the same number as the frame, this number is 7 digits long: 1815968.
I've searched BMbikes where all the R90S engine units seem to have the same number as the chassis.
Has anyone encountered this before or can offer an explanation? TIA.