Honda XR75. K3 Engine in K4 -5 Frame. Similar to Z50R XR75 XR80 Mini Trail
HONDA XR75 K3 ENGINE IN XR75 K4 K5 FRAMETHIS ENGINE WAS RACE PREPARED BYMERV CHAPLIN FOR HIS SON (IN THE DAY)APARRENTLY HONDA RACING MADE SEVERAL GEAR SETS WITH GEARS INSTEAD OF THE STANDARD GEARS FOR THE K3 THIS ENGINE HAS ONE OF THOSE SPEED GEAR SETSHENCE THIS ENGINE WAS EXTREMELY FAST (IN THE DAY AT ...