Hey, I've been trying to restore a CD200 from quite a long time, still has a bit of issues because of my no knowledge and no time because of studies, any ways, the problem I'm facing right now is the rectifier known as charger mostly, my bike is on point system, those dumb mechanics just check the spark of the rectifier and claim its working, the problem is my batter gets drained after two three day use, one mechanic says my bike should remain start if i remove the positive terminal once started but in reality the engine goes off if i do that, this mechanic says to change the rectifier, the other one who installed it says it will get switched off once the positive terminal is disconnected and claims my wiring needs to be changed, i have three rectifiers till now, wasted around 4k till now on all this, no results. Please tell me how the thing really works so i just get rid of it for once, thank you in advance, other things i use a maintenance free 12v 7.5 AH battery, purchased this January.