Engine intake and exhaust systems were modified in 1978 to increase torque and broaden the powerband; the carburetors were reduced in size by 1 mm, the exhaust system was redsigned, and ignition timing altered.
Engine intake and exhaust systems were modified in 1978. This was to increase torque and broaden the powerband. The carburetors were reduced in size by 1 mm. The exhaust system was redsigned. Ignition timing altered.