Why is my 1990 fzr 1000 overheating?

SOURCE: oil change on my 1990 fzr yamaha 1000

20/50 shouold be fine oil drain plug is under the belly pan

SOURCE: 1990 fzr 1000 yamaha

THERE SHOULD ONLY BE ONE MY 1990 FZR EXUP ONLY HAS ONE AND ITS THE OIL LEVEL INDICATOR

SOURCE: yamaha fzr 1000 exup 1990, bike's been standing

this happens after they sit a while, get her started, get her rolling, put her in second gear, hold the clutch in, get her up to 20 miles an hour, hold a little throttle on and slam on the rear brake, this usually will free up the stuck friction plates. If not try it a couple of times, it has always worked for me, also if that does not work for you you have to take the side cover off of the engine (clutch side) and using a flat headed screwdriver, and a zip tie to hold the clutch lever back to the handle bar, place the screwdriver in between the clutch plates and gently pry them apart from each other, on your bike I believe you have 7 friction plates and 6 steel plates. ( if you have to remove the cover go get a gasket first).

SOURCE: FZR 1000,timeing chain rattle

check the cam chain tensioners.

SOURCE: my yamaha fzr 1000 genesis wont start no spark any

is the kill switch off??