| YAMAHA YZ SERIES MOTOCROSS BIKES 1974 - 2010 | ||||||
| Year | Size | Model Designator | Model Number | Serial Number | Prod Qty | |
| 1974 | 80 | YZ80A | 462-000101 | 9661 | ||
| 1974 | 125 | YZ125A | 453-000101 | 7730 | ||
| 1974 | 250 | YZ250A | 431-000101 | 4104 | NOTE: The 1974 Models Were Silver W/Red Stripes And The Tank Was Held Down By Straps On The 125/250/360's. | |
| 1974 | 500 | YZ360A | 432-000101 | 631 | ||
| 1975 | 80 | YZ80B | 492-000101 | 18570 | ||
| 1975 | 125 | YZ125B | 453-100101 | 101620 | ||
| 1975 | 250 | YZ250B | 483-000101 | 2759 | NOTE: The 1975 Models Were Yellow W/Black+White "C" Checkerboard Stripes. The Tanks Were Held Down By Straps As Well. This Is The Last Year Of The "Strap Tank" And The First Year Of The Monoshock For The 125/250/360's. | |
| 1975 | 500 | YZ360B | 484-000101 | 1459 | ||
| 1976 | 80 | YZ80C | 598-000101 | 12750 | ||
| 1976 | 100 | YZ100C | 1J4-000101 | 3470 | ||
| 1976 | 125 | YZ125C | 537-000101 | 14044 | ||
| 1976 | 175 | YZ175C | 1L8-000101 | 1610 | ||
| 1976 | 250 | YZ250C | 509-100101 | 103405 | NOTE: The 1976 Models Were Yellow And All Were Monoshock Except The YZ80C. This Is The Last Year Of The Aluminum Tank And The First Year Of The Completely New Chassis/Engine Combination. | |
| 1976 | 500 | YZ400C | 510-100101 | 101838 | ||
| 1976 1/2 | 125 | YZ125X | 1G8-000101 | 7120 | ||
| 1977 | 80 | YZ80D | 1T0-000101 | 20290 | ||
| 1977 | 100 | YZ100D | 1J4-000101 | 103550 | ||
| 1977 | 125 | YZ125D | 1W1-000101 | 15610 | ||
| 1977 | 250 | YZ250D | 1W3-000101 | 6520 | NOTE: This Is The First Year Of The Plastic Tank, Used On All Bikes Except The YZ80, YZ100. It Was Also A Completely Different Frame/Monoshock/Engine Design For The 125/250/400 Models. Bob (Hurricane) Hannah Raced An Almost Completely Stock YZ250D In His Sucessful 1977 Season. | |
| 1977 | 500 | YZ400D | 1W4-000101 | 6720 | ||
| 1978 | 80 | YZ80E | 2J5-000101 | |||
| 1978 | 100 | YZ100E | 2K5-000101 | 6572 | ||
| 1978 | 125 | YZ125E | 2K6-000101 | 15080 | ||
| 1978 | 250 | YZ250E | 2K7-000101 | 9850 | ||
| 1978 | 500 | YZ400E | 2K8-000101 | 7406 | ||
| 1979 | 80 | YZ80F | 2X6-000101 | |||
| 1979 | 100 | YZ100F | 2W5-000101 | n/a | ||
| 1979 | 125 | YZ125F | 2X3-000101 | n/a | ||
| 1979 | 250 | YZ250F | 2X4-000101 | n/a | ||
| 1979 | 500 | YZ400F | 2X5-000101 | n/a | ||
| 1980 | 50 | YZ50G | 3R0-000101 | |||
| 1980 | 80 | YZ80G | 3R1-000101 | |||
| 1980 | 100 | YZ100G | 3R2-000101 | |||
| 1980 | 125 | YZ125G | 3N8? | 3R3-000101 | NOTE: This Is The Last Year Of Air Cooling on the YZ125. First year of sprocket & rear brake both on right side on 125 | |
| 1980 | 250 | YZ250G | 3R4-000101 | |||
| 1980 | 500 | YZ465G | 3R5-000101 | |||
| 1981 | 60 | YZ60H | 4V0-000101 | |||
| 1981 | 80 | YZ80H | 4V1-000101 | |||
| 1981 | 100 | YZ100H | 3R2-020101 | |||
| 1981 | 125 | YZ125H | 4V2-000101 | NOTE: This Is The First Year Of The Watercooling on the YZ125, the rad was up in front of the bars | ||
| 1981 | 250 | YZ250H | 4V3-000101 | |||
| 1981 | 500 | YZ465H | 4V4-000101 | |||
| 1982 | 60 | YZ60J | 5X1-000101 | |||
| 1982 | 80 | YZ80J | 5X2-000101 | |||
| 1982 | 100 | YZ100J | 5X3-000101 | |||
| 1982 | 125 | YZ125J | 5X4-000101 | NOTE: In 1982 yamaha put the first yamaha power valve system(ypvs) on the yz125 and yz250. | ||
| 1982 | 250 | YZ250J | 5X5-000101 | NOTE: This Is The First Year Of The Watercooling on the YZ250, New Mono-X design, White/red bikes in Canada | ||
| 1982 | 500 | YZ490J | 5X6-000101 | |||
| 1983 | 60 | YZ60K | 5X1-010101 | |||
| 1983 | 80 | YZ80K | 22W-000101 | |||
| 1983 | 100 | YZ100K | 5X3-060101 | |||
| 1983 | 125 | YZ125K | 24X-000101 | NOTE: Rads came off the bars to either side of the tank on 125 & 250. Another new mono-x design! | ||
| 1983 | 250 | YZ250K | 24Y-000101 | |||
| 1983 | 500 | YZ490K | 23X-000101 | |||
| 1984 | 80 | YZ80L | 39K-000101 | |||
| 1984 | 125 | YZ125L | 39W-000101 | NOTE: YZ60 & 100 Not made any more. | ||
| 1984 | 250 | YZ250L | 39X-000101 | |||
| 1984 | 500 | YZ490L | 40T-000101 | |||
| 1985 | 80 | YZ80N | 58T-00 | |||
| 1985 | 125 | YZ125N | 55Y-000101 | NOTE: This Is The First Year Of White/red bikes in USA. BASS system on 125 & 250 | ||
| 1985 | 250 | YZ250N | 56A-00 | |||
| 1985 | 500 | YZ490N | 57H-00 | |||
| 1986 | 80 | YZ80S | 1LR-00 | |||
| 1986 | 125 | YZ125S | 1LX-00 | NOTE: Sprocket switched back to left side on 125 | ||
| 1986 | 250 | YZ250S | 1LU-00 | |||
| 1986 | 500 | YZ490S | 1LV-00 | |||
| 1987 | 80 | YZ80T | 2HF-00 | |||
| 1987 | 125 | YZ125T | 2HG-00 | |||
| 1987 | 250 | YZ250T | 2HH-00 | |||
| 1987 | 500 | YZ490T | 2HJ-00 | |||
| 1988 | 80 | YZ80U | 2VE-00 | |||
| 1988 | 125 | YZ125U | 2VN-00 | |||
| 1988 | 250 | YZ250U | 2VM-00 | |||
| 1988 | 500 | YZ490U | 2HJ-00 | |||
| 1989 | 80 | YZ80W | 3MK-00 | |||
| 1989 | 125 | YZ125W | 3JD-00 | NOTE: Upside down forks started this year on 125 & 250 | ||
| 1989 | 250 | YZ250W | 3JE-00 | |||
| 1989 | 500 | YZ490W | 2HJ-00 | |||
| 1990 | 80 | YZ80A1 | 2??-00 | |||
| 1990 | 125 | YZ125A1 | 3SR-00 | |||
| 1990 | 250 | YZ250A1 | 3SP-00 | |||
| 1990 | 500 | YZ490A1 | 2HJ-00 | |||
| 1991 | 80 | YZ80B1 | 2HF-00 | |||
| 1991 | 125 | YZ125B1 | 3XJ-00 | |||
| 1991 | 250 | YZ250B1 | 3XK-00 | |||
| 1992 | 80 | YZ80D1 | 2HF-00 | |||
| 1992 | 125 | YZ125D1 | 4DB-00 | |||
| 1992 | 250 | YZ250D1 | 4DA-00 | |||
| 1993 | 80 | YZ80E1 | 4ES-00 | NOTE: Upside down forks started this year on 80 | ||
| 1993 | 125 | YZ125E1 | 4EX-00 | |||
| 1993 | 250 | YZ250E1 | 4EW-00 | |||
| 1994 | 80 | YZ80F1 | 4ES-00 | |||
| 1994 | 125 | YZ125F1 | 4JY-00 | |||
| 1994 | 250 | YZ250F1 | 4JX-00 | |||
| 1995 | 80 | YZ80G1 | 4ES-00 | |||
| 1995 | 125 | YZ125G1 | 4PE-00 | |||
| 1995 | 250 | YZ250G1 | 4MX-00 | |||
| 1996 | 80 | YZ8H1 | 4ES-00 | |||
| 1996 | 125 | YZ125H1 | 4SS-00 | |||
| 1996 | 250 | YZ250H1 | 4SR-00 | |||
| 1997 | 80 | YZ80J1 | 4ES-00 | |||
| 1997 | 125 | YZ125J1 | 4XM-00 | |||
| 1997 | 250 | YZ250J1 | 4XL-00 | |||
| 1998 | 80 | YZ80K1 | 4ES-00 | |||
| 1998 | 125 | YZ125K1 | 5DH-00 | |||
| 1998 | 250 | YZ250K1 | 4XL-00 98 | |||
| 1999 | 80 | YZ80L1 | 4ES-00; | |||
| 1999 | 125 | YZ125L1 | 5ET-00 | |||
| 1999 | 250 | YZ250L1 | 5CU-00 | |||
| 1999 | 400F | YZF400L1 | 5GR-00 | |||
| 2000 | 80 | YZ80M1 | 4ES-00 | |||
| 2000 | 125 | YZ125M1 | 5HD-00 | |||
| 2000 | 250 | YZ250M1 | 5HC-00 | |||
| 2000 | 426F | YZF426M1 | 5JG-00 | |||
| 2001 | 80 | YZ80N1 | 4ES-00 | |||
| 2001 | 125 | YZ125N1 | 5MV-00 | |||
| 2001 | 250 | YZ250N1 | 5MW-00 | |||
| 2001 | 250F | YZF250N1 | 5NL-00 | |||
| 2001 | 426F | YZF426N1 | 5JG-00 | |||
| 2002 | 85 | YZ85P1 | 5PA-00 | |||
| 2002 | 125 | YZ125P1 | 5NY-00 | |||
| 2002 | 250 | YZ250P1 | 5NX-00 | |||
| 2002 | 250F | YZF250P1 | 5SG-00 | |||
| 2002 | 426F | YZF426P1 | 5SF-00 | |||
| 2003 | 85 | YZ85R1 | 5PA-00 | |||
| 2003 | 125 | YZ125R1 | 5UN-00 | |||
| 2003 | 250 | YZ250R1 | 5UP-00 | |||
| 2003 | 250F | YZF250R1 | 5UL-00 | NOTE: This is Don's favorite bike ever! | ||
| 2003 | 450F | YZF450R1 | 5TA-00 | |||
| 2004 | 85 | YZ85S1 | 5PA-00 | |||
| 2004 | 125 | YZ125S1 | ||||
| 2004 | 250 | YZ250S1 | ||||
| 2004 | 250F | YZF250S1 | ||||
| 2004 | 450F | YZF450S1 | ||||
| 2005 | 85 | YZ85T1 | ||||
| 2005 | 125 | YZ125T1 | NOTE: First year aluminum frame! | |||
| 2005 | 250 | YZ250T1 | NOTE: First year aluminum frame! | |||
| 2005 | 250F | YZF250T1 | ||||
| 2005 | 450F | YZF450T1 | ||||
| 2006 | 85 | YZ85U1 | ||||
| 2006 | 125 | YZ125U1 | ||||
| 2006 | 250 | YZ250U1 | ||||
| 2006 | 250F | YZF250U1 | NOTE: First year aluminum frame! | |||
| 2006 | 450F | YZF450U1 | NOTE: First year aluminum frame! | |||
| 2006 | 250FSE | YZF250U1 | NOTE: 50TH Anniversary - Yellow/Black | |||
| 2006 | 450FSE | YZF450U1 | NOTE: 50TH Anniversary - Yellow/Black | |||
