Rok Klasa Zespół Motocykl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Punkty Pozycja 1980 250 cm³ Yamaha TZ250 NAT- ESP- FRA- YUG- NED8 BEL- FIN- GBR- CZE- GER6 8 181981 250 cm³ Johnson-Yamaha TZ250 ARG9 GER- NAT- FRA- ESP- NED10 BEL5 RSM10 GBR6 FIN- SWE8 CZE4 26 9 350 cm³ Johnson-Yamaha TZ350 ARG- AUT- GER- NAT- YUG- NED- GBR4 CZE- 8 171982 250 cm³ Chevallier-Yamaha TZ250 FRA- ESP- NAT- NED- BEL3 YUG1 GBR10 SWE- FIN2 CZE- RSM- GER- 38 6 350 cm³ Chevallier-Yamaha TZ350 ARG3 AUT- FRA2 NAT1 NED- GBR2 FIN- CZE1 GER- 64 21983 250 cm³ Chevallier-Yamaha TZ250 RSA2 FRA4 NAT9 GER3 ESPNS AUT2 YUGNS NED7 BEL1 GBR9 SWE8 68 3 500 cm³ Honda Honda NS500 RSA- FRANS NAT- GER- ESP13 AUT- YUG- NED- BELNS GBRNS SWE20 RSMNS 0 - 1984 500 cm³ Elf-Chevallier Honda Honda NS500 RSA4 NAT12 ESPNS AUTNS GERNS FRA6 YUG6 NEDNC BELNS GBRNS SWENS RSM5 24 9 1985 500 cm³ Elf-Honda Honda NS500 RSA7 ESP6 GER5 NAT10 AUT6 YUG7 NED6 BEL7 FRANS GBR4 SWE6 RSMNC 47 8 1986 500 cm³ Rollstar-Honda Honda NS500 ESP- NAT5 GER5 AUT- YUG- NED9 BEL7 FRA8 GBR2 SWE6 RSM7 42 7 1987 500 cm³ Cagiva Cagiva GP500 JPNNS ESPNS GER12 NATNS AUT12 YUG- NED6 FRANS GBR6 SWE8 CZE12 RSMNS PORNS BRA4 ARGNS 21 12 1988 500 cm³ Marlboro-YYamaha Yamaha YZR500 JPN9 USA8 ESP8 EXP6 NATNS GER7 AUT2 NED12 BEL4 YUG6 FRA7 GBR7 SWE7 CZENS BRA9 120 7 1989 250 cm³ Aprilia RS250 JPN14 AUS9 USA14 ESPNS NATNS GERNS