I have a 1997 Honda SR50 Dio. which I want to derestrict. My question is if I drill out the washer in the muffler will it do any damage to the motor? I don't want to do burn outs!! I just want to be able to do just a little bit more than 55kph.to stop SUV's sitting on my butt around town. I am sure the variator plate is still installed, so by removing it would this give the desired result without having to drill out the washer??? Or any other suggestions to tweek it would be appreciated.