Actually, you should be good from ’87 through 2000. Yamaha replaced the old style slide carb with the current CV diaphragm type carb in model year 2001. Coincidently, they also took the kick starter off the same year; which has nothing to do with the carb used. Also in 2001 they added a front disk brake and trip meter. Actually, other than a bit of an electrical output boost in ’88 to the stator/generator the only changes to the TW (North American version) took place in 2001 and they are still putting out that same bike today.
Sorry to "butt-in" but i have recently had problems with a dirty carb and i have been looking for Workshop Drawing to assist. You have me worried now as i am given to understand that my TW is 1991 [via Vin # JYA3AWN06MA30282] and is in fact an electric start [Green Livery].I'm in South Africa i wonder if different Vin codes are applicable to markets.Either way i need to get the correct model year. Can anyone assist.
Service and repair manual links are in a thread pinned to this very forum. You may not have realized it was a service and repair manual thread because it has a very obtuse title, "Service and Repair Manuals".