remove the rear plastic splash unit from the under side,now either thread a small length of wire from the top or bottom where the chain enters the frame,attached to the wire will be a piece of dental floss about a foot and half long and tied to the other end of the dental floss will be your new chain.When you run the short piece of wire throught you might get oil/grease on it but don't worry,now pull the unit thru.Hopes this helps,check to make sure the chain is installed on correctly.Good Luck.You might have to double up on the Floss to keep the chain aligned and flat so it will contact and correctly sit on the front sprocket.Oh ya make sure you are in neutral gear and the bike is on a rear stand.
[This message has been edited by Cisco San Jose (edited 17 April 2000).]