40 horses, this was achieved with a three valve head.
7/8"
190hp
according to the clymer manual (M334) the front forks of 81 cm400's are as follows: CM400 A,C,&T require 190cc or 6.4 fl.oz. cm400 E require 135cc or 4.6 fl.oz. according to the clymer manual (M334) the front forks of 81 cm400's are as follows: CM400 A,C,&T require 190cc or 6.4 fl.oz. cm400 E require 135cc or 4.6 fl.oz.
If it is the 5.7L 350 V8, then it has 175 Horsepower
The 1981 Honda CB400 and CM400 differ primarily in their design and intended use. The CB400 is a standard motorcycle known for its upright riding position and versatility, while the CM400 is a cruiser with a more relaxed seating posture and lower handlebars. Additionally, the CB400 typically features a sportier look and performance-oriented components, whereas the CM400 is designed for comfort and leisurely rides. Both models share the same engine platform but cater to different riding styles.
140 millilitres per tube
81hp
Depends on the engine
ADVERTISED HORSEPOWER IS--155HP @ 4400 RPMs.
305 - 165, 350 - 190
2.5 liters
25 AMP