I agree with Extreme Gabster. With lots of room or road & with a good set of brakes put the machine in as high of a gear as possible. ( you will need to start in low gear & shift up if possible ) With the clutch peddle engaged, then hammer the brake peddle hard many times. Lots of punishment and you stand a good chance of the clutch breaking loose of the fly wheel. If this fails you may need to take the unit apart.
I also did the same thing with the rear tires blocked off the ground. Make sure the blocking is solid. Either way you need to give the brakes a lot of punishment. Hit then hard and as fast as you can. ( bam, bam, bam )
