400cc Models

Considered by many to be the best all around of the triples, the 400 was actually considered to have good handling. A developed version of the 350, it not only cured it earlier sibling's ills but improved substantially on them. Despite this, the 400, as with all the smaller triples, has remained relatively obscure. It's main competitor was the Yamaha RD350/400, which has become a legendary bike in it's own right. The 400 after 1975 was a detuned model with CDI ignition.

 

S3

1974

Engine:
S3E00001~
Frame:
S3F-00001~
Same styling cues as '74 models. Square cylinder head fins and rubber mounted motor. Fitted with points type ignition system.  Distributed to all Markets except Middle and Near East. Disc front brake. Rated at 42 HP.
Candy Sky Blue Candy Red      
    S3A

1975

Engine:
S3E14300~
Frame:
S3F-14300~
A decal was added to the tailpiece. The side panel emblems were changed from chrome to white.
Candy Super Red Candy Green      

 

KH400-A3

1976

Engine:
S3E026300~
Frame:
S3F-26200~
Updated to KH series. Front forks and wheel change, frame reinforced. Three fuse system, locking gas cap, etc. Fit with CDI unique to 400 model, water resistant brake pads. Horsepower lowered to 38 HP, 36 HP for West Germany.
Orange Dark Green      
    KH400-A4

1977

Engine:
S3E033601~
Frame:
S3F-033601~
 
Candy Royal Purple Candy Emerald Green      
KH400-A5

1978

Engine:
S3E042801~
Frame:
S3F-042801~
Updated seat and master cylinder, same as rest of KH series.
Candy Lime Green Candy Persimmon Red      

Sent it to me!

KH400-A6

1979

Engine:
No Details
Frame:
S3F-045901~
 
Candy Blue

Candy Red

     
  KH400-A7

1980

Engine:
No Details
Frame:
S3F-046601~
The black side panels were fitted with badges that only said '400' with the 'KH' logo printed on the side of the seat.
Lime Green