How do i get the timing chain off of my 2007 ttr 230

SOURCE: ttr 230 high RPM's looses power sputters / new

lOSE OFF POWER ON TOP END,IS A GOOD INDICATION OF NOT ENOUGH FUEL..TRY AQ BIGGER MAIN JET

SOURCE: how do i take off the timing/cam chain on my 2007

without taking apart the whole motor, you can take a chain link apart, and break the chain apart, then tie the the new chain to the old one and pull it back through.