You have to use a chain splitter, Most decent motorcycle suppliers sell them, like M&P for instance, you use it to get the old chain off and also to fit the new one.
Peter
October 2007
The best way I find is to use an angle grinder with a metal cutting disc to cut clean through the old chain, takes 2 mins.
Rob
July 2005
I can answer this question...
How do I get a linkless chain off a motorbike(Susuki Freewind 650)?