1985 tri z 250 i need to do oil change waht kind of oil, how much oil? is their a filter?

 

I use 10 30 oil no filter take the oil cap off and the oil check screw (below the cap on the side of the case) and fill it until it starts to come out and then put the screw back in and cap on and your good to go

 

thanks

 

you are talking about the gear oil right. because on a tri z the engine lube oil is mixed in with the gasoline. U need to use gear oil too. not 10 W 30