09-24-2020, 06:50 AM
(09-24-2020, 06:37 AM)BobAintStoppin Wrote: Try this, Put your voltmeter on the battery terminals (not the wires leaving the battery, but the terminals themselves). Then try to start the bike and see what happens to the voltage. If it drops below say 9 volts the battery is either bad, or in your case, perhaps just too small for the application. In my limited experience the BMW bike charging systems are very reliable, so my guess is either bad connection or bad battery.Difficult to get to the positive terminal without sliding the battery out some. The hot post just forward of the battery (red cap) has a lead directly from the positive post of the battery.
Frank
'23 R1250RS, 9000 mi. 1 yr., '03 R1100S BCR #6/200, '85 K100/1100RS- 38 yrs. 331,000 mi., '17R1200RS- 51,054 mi. (gone), '16 R1200RS- 28,322 mi. (gone), '11 R1200RT-30,000 mi. (gone), '05 R1200ST-58,000 mi. (gone), '96 Ducati 900SS/SP-89,000 mi. (gone), 560K+ BMW miles