I assume you are aware that...
Part # = 14026-1119
Part Description = CHAIN COVER
Model Count = 27
KX125-B1 82 125 KX125 MOTOCROSS
KX125-B2 83 125 KX125 MOTOCROSS
KX125-C1 84 125 KX125 MOTOCROSS
KX125-D1 85 125 KX125 MOTOCROSS
KX125-E1 86 125 KX125 MOTOCROSS
KX125-E2 87 125 KX125 MOTOCROSS
KDX200-A1 83 200 KDX200 OFF ROAD
KDX200-A2 84 200 KDX200 OFF ROAD
KDX200-A3 85 200 KDX200 OFF ROAD
KDX200-C1 86 200 KDX200 OFF ROAD
KDX200-C2 87 200 KDX200 OFF ROAD
KXF250-A1 87 250 TECATE 4 SPORT 4 WHEEL ATV
KXF250-A2 88 250 TECATE 4 SPORT 4 WHEEL ATV
KXT250-A1 84 250 TECATE SPORT 3 WHEEL ATV
KXT250-A2 85 250 TECATE SPORT 3 WHEEL ATV
KXT250-B1 86 250 TECATE SPORT 3 WHEEL ATV
KXT250-B2 87 250 TECATE SPORT 3 WHEEL ATV
KX250-C1 83 250 KX250 MOTOCROSS
KX250-C2 84 250 KX250 MOTOCROSS
KX250-D1 85 250 KX250 MOTOCROSS
KX250-D2 86 250 KX250 MOTOCROSS
KX250-E1 87 250 KX250 MOTOCROSS
KX500-A1 83 500 KX500 MOTOCROSS
KX500-A2 84 500 KX500 MOTOCROSS
KX500-B1 85 500 KX500 MOTOCROSS
KX500-B2 86 500 KX500 MOTOCROSS
KX500-C1 87 500 KX500 MOTOCROSS
This subject has been done before,
See here...
http://ozvmx.com/community/index.php?topic=22743.0