I have a silver ´77 DT 250. It doesn´t run right now. No spark. I have the points and condenser, I installed the points but the condenser is not right the cam wiper is not where it should be. I also need to replace the fork seals. I have a new battery and it´s on a trickle 6V. Looking forward to working with you all. How often do the regulators go bad on these?