By 'URL' I assume you mean OIL?
No crankcase and fork oil is the only liquid fluids in the machine besides gas.
Lots of other joints and grease points .. I suggest you download the manual for your machine for full maintenance details.
Current toys..
1986 Honda 350X..trail bomb!
1985 Honda 250SX..my main mudder
1985 Honda 250ES..Back in Black Trike
Current non-trike toys:
1990 Honda TRX300FW
1995 Seadoo GTX
1998 Polaris Indy Lite 340(Nearly new looking)
1998 Polaris Touring 500
1998 Club Car (electric)