Normally you cannot do this without modifications.
Yea
Yes. The oil drips into the crankcase via the oil filler location.
Follow the instructions on Youtube.
Crankcase oil is engine oil , so yes
Put the bike on its side stand. Loosen and remove the oil fil plug on the right hand top side of the crankcase. Put a funnel into the hole. Put a large pan or container under the crankcase. Loosen and remove the oil drain plug from the bottom of the crankcase. The old oil will run out. Then, put the oil drain plug back in and tighten it. Finally, pout the correct amount of JASO MA or MA2 certified oil into the crankcase.
Put the bike on its stand. Loosen and remove the oil fil plug on the right hand top side of the crankcase. Put a funnel into the hole. Put a large pan or container under the crankcase. Loosen and remove the oil drain plug from the bottom of the crankcase. The old oil will run out. Then, put the oil drain plug back in and tighten it. Finally, pout the correct amount of JASO MA or MA2 certified oil into the crankcase.
No, It is contaminated with dirt.
you dont put any oil into a kawasaki crankcase, the 2 stroke that is pumped into the engine lubricates the crank, and all the other internals of the engine.
Engine damage from poor lubrication.
If the rings are completely worn out they can put more preasure in the crankcase than the pcv can handle. Have it checked out.
try monstergy6.com
Yes, oil should be put in the crankcase on a 1989 Suzuki RM 250. The proper oil to use for this is a product made by Standard Oil called 80-90W Gear Oil.