Quote:
Originally Posted by Craig380
When you say it won't start, does the starter motor spin the engine but it doesn't fire? Or does the starter motor grind really slowly, too slow to start the bike?
Also, do the drain test by disconnecting the negative (black) lead from the battery, then touching/clipping one probe to the battery terminal and the other probe to the end of the negative (black) lead. You can blow the fuse in the meter if you do it with the battery positive lead. You should get a reading of almost zero, any more than 0.1amps is a problem.
Charge the battery before doing the test, though.
|
There will be no more current flowing whether you put the ammeter in the pos or neg lead you are still completing the circuit and any current from or to the battery will still flow through the meter because the battery is the only source of power when engine is stopped. You are right though that the problem when using positive terminal is that if you touch the other meter probe to earth you get a short circuit which will pop the fuse.
If the battery keeps going flat sounds like alternator or R/R - measure the voltage across the battery about an hour after a run and it should be around 12.6 volts, if the engine is running above about 2000rpm then volatge across battery should be around 14 volts. If battery voltage drops appreciably when standing definitely a parasitic load sucking power.
As you say if this all started when LED indicators were fitted then start by taking them off.