Honda Z50 Production Model Years and Serial Numbers
Z50AK0 
1968-69 Z50A-100001~ No Lights
1968-69 Z50A-100001~ No Lights Z50AK1 1969-70 Z50A-120088~ Battery
1969-70 Z50A-120088~ Battery Z50AK2 1970-71 Z50A-270236~ Oval Badges, Foot Brake
1970-71 Z50A-270236~ Oval Badges, Foot BrakeZ50AK3 1972 Z50A-1000001~ 1st Year of Rear Shocks
1972 Z50A-1000001~ 1st Year of Rear Shocks Z50AK4 1973 Z50A-3000001~
1973 Z50A-3000001~ Z50AK5 1974 Z50A-5000001~
1974 Z50A-5000001~ Z50AK6 1975 Z50A-6000001~
1975 Z50A-6000001~ Z50A'76 1976 Z50A-6100001~
1976 Z50A-6100001~ Z50A'77 1977 Z50A-6200003~
1977 Z50A-6200003~ Z50A'78 1978 Z50A-6300003~ Red Painted Fenders
1978 Z50A-6300003~ Red Painted Fenders Honda CT70 Production Model Years and Serial Numbers
CT70K01969-71CT70-100001~ 3 Speed Auto
1969-71CT70-100001~ 3 Speed Auto CT70HK0 1970-71 CT70H-100001~ 4 Speed Manual
CT70H-100001~ 4 Speed Manual CT70K11972-73CT70-2000001~ 3 Speed Auto
1972-73CT70-2000001~ 3 Speed Auto CT70HK1 1972-73 CT70H-2000001~ 4 Speed Manual
CT70H-2000001~ 4 Speed Manual CT70K21973 CT70-2100001~ 3 Speed Auto
1973 CT70-2100001~ 3 Speed Auto CT70K31974 CT70-2300001~ 3 Speed Auto
1974 CT70-2300001~ 3 Speed Auto CT70K41975 CT70-2400001~ 3 Speed Auto
1975 CT70-2400001~ 3 Speed Auto CT70'761976 CT70-2500004~ 3 Speed Auto
1976 CT70-2500004~ 3 Speed Auto CT70'771977 CT70-2600008~ 3 Speed Auto
1977 CT70-2600008~ 3 Speed Auto CT70'781978 CT70-2700005~ 3 Speed Auto
1978 CT70-2700005~ 3 Speed Auto Honda CT90 Production Model Years and Serial Numbers
CT90K0/K1 1969CT90-100001 TO CT90-200000
1969CT90-100001 TO CT90-200000 CT90K11970CT90-200001 TO CT90-300000
1970CT90-200001 TO CT90-300000CT90K21971CT90-300001 TO CT90-400000
1971CT90-300001 TO CT90-400000CT90K31972CT90-400001 TO CT90-499999
1972CT90-400001 TO CT90-499999CT90K41973CT90-1400001 TO CT90-1500002
1973CT90-1400001 TO CT90-1500002CT90K51974CT90-1500003 TO CT90-1600002
1974CT90-1500003 TO CT90-1600002CT90K61975CT90-1600003 TO CT90-1700003
1975CT90-1600003 TO CT90-1700003CT90 1976 1976CT90-1700004 TO CT90-1800007
1976CT90-1700004 TO CT90-1800007CT90 1977 1977CT90-1800008 TO CT90-1900009
1977CT90-1800008 TO CT90-1900009CT90 1978 1978CT90-1900010 TO CT90-5000010
1978CT90-1900010 TO CT90-5000010CT90 1979 1979CT90-5000011 TO CT90-6000000
1979CT90-5000011 TO CT90-6000000Honda CT90 Color Chart
COLORCODE MODEL
MODELScarlet Dark Red C K2,K3
Dark Red C K2,K3 Summer Yellow Smokey Yellow CC K3
K3 Bright Yellow Bright Yellow XB K2,K9(78)
Bright Yellow XB K2,K9(78) Monza Red Red R-110
Red R-110Mars Orange Orange YR-6 K4,K5
Orange YR-6 K4,K5 Shiny Orange Orange YR-26 K7(76), K8(77)
Orange YR-26 K7(76), K8(77) Tahitian Red Red YR-23, EC K6(75), K10(79)
Red YR-23, EC K6(75), K10(79) Dark Gray Metallic Dark Gray CB,NH19M Several Plastic Parts
CB,NH19M Several Plastic PartsHonda CL70 Production Model Years and Serial Numbers
CL70 K0CL70-100002 TO CL70-199999
CL70-100002 TO CL70-199999CL70 K1CL70-200002 TO CL70-299999
CL70-200002 TO CL70-299999CL70 K2CL70-300002 TO CL70-399999
CL70-300002 TO CL70-399999CL70 K3CL70-1300001 T0 CL70-1399999
CL70-1300001 T0 CL70-1399999Honda CT90, CT70 and Z50 Model Information
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