checking regulator starting the engine, running it at 5000 rpm reveals a loading voltage of 13.8 V at the battery poles. I guess thatīs fine. I wonder why the battery boilds dry. draining the engine oil now, since the engine is warm anyhow, letīs drain the oil. remove gas reservoir close gas taps on right side close gas taps on left side tank removed. open petrol tube left behind. Watch the connector for the gas fill indicator lights. sensors for gas fill indicator lights. at the back of the tank. The top one (yellow light) isnīt working. Here is a chance to check this out. position of the rubber knobs which support the tank rubber cushions and screws for tank