The Later B20E and B20F versions used Bosch electronic fuel injection to bring the output from 118 hp to 130 hp. Both engines displace 1990 cc from 88.9 mm bore and 80 mm stroke.
The Later B20E and B20F versions featured Bosch electronic fuel injection, larger valves, and intake/exaust ports. Output was raised from 118 hp to 130 hp. Both engines displace 1990 cc from 88.9 mm bore and 80 mm stroke.