521 ml SAE10. Or 97 mm level with compressed forkleg without spring.
Check it
there is a sight glass on the left side. Its on the case the says suzuki.
on flat ground balance the bike and check the little oil window usually on the right side of the bike on crankcase
the sight glass is behind the rear wheel
I have the same problem 1998 Suzuki we have to check the oil temp indicator light thermo- switch. Check for loose connection's or for any shorts or a defective thermo-switch.
5w30. Double check in the owner's manual.
Mine takes 5qt. But check the dipstick it will tell you when its full.
The gearbox and engine are one unit so therefore share the same oil.
There is a glass oil level just to the front of the r/h rear wheel, should be able to see oil level there.
high quality suzuki oil 40:1
type of oil does a suzuki intruder 650 take