gday all. I'm writing in desperation from my mobile phone. But this little issue is really starting to shit me. So the bike in question is an xr 400 96 build. The is evidently a problem with the reg rec. It keeps on blowing bulbs. So i check the factory reg. Looks original all good just needs replacing. But then i i check the wiring harness side of the connecter. Its only got 2 of the 4 wires. One wire leads from the alt. The other goes in to the main harness. The two wires its missing mirror whats there. I play around, disconnect the factory reg and rev the motor. Sure enough the tail light blows. But now the indicators dont work aswell unless the motor is revved. The after market reg rec is disconnected and everything seems normal except for the indicators. I check the regulated voltage. Its way too low below 3k rpm. Then at 3k rpm and above it either remains steady at 13v or fluctuates greatly. The resistance on the the lighting coil and main harness appear to be within spec. So the question is what to do? Replace both of the regs or is there a way of getting by by just replacing one? The after market reg has 4 wires going in. It seems to mimick what the factory one is bar one wire which is a different colour. Anyone? Please? Cheers dom.