My intent is to provide you with information about your routine maintenance on your motorcycle.  Specifications were searched in service manuals & recorded on a laptop computer, for the purpose of easy recall. At the time, I was working in a Suzuki; Yamaha & Arctic Cat dealerhip.  I do not claim to have recorded all models, but the most popular models between 1999 & 2003.  All technicians at one time or another had to place a phone call to get crucial info like a valve clearance specification for a model that the service manual was not in the shop.  If this can help you:

Routine maintenance specifications for: Honda; Kawasaki; Suzuki models.

Routine maintenance specifications for Yamaha models

If you are about to perform a routine maintenance on your motorcycle, it may be wise to acquire the necessary parts in order to get it done on the same day, without having to hunt (at the last minute) for the required drain plug crush washer, or: the air filter; the oil filter; a filter O-ring; the spark plugs; a battery.

Maintenance parts Honda Kawasaki Suzuki

Maintenance parts Yamaha

Hope to have been of some help.