2 possible problems, your clutch lever might be the short clutch lever, if it is change it out to the longer one. The other problem might be that the slip clutch pulley spring might be pulled to tight, making it hard to pull in the clutch lever. You'll hafta remove the back belt and adjust the front belt first, put enough tension on the Belt and not pull down the clutch pulley spring to much.
This will make it easier to pull the clutch lever.
Ray