Starting Problems

[MohKraats]

Hello Grumpy Saint,

The clicking sound most likely the start relais.
The dashboard lights dimming means there is a load that pulls current from your battery.
When the lights go very dimm, the voltage drops to far, and nothing further will happen.

Sounds like you really have to check your voltage with a multimeter.
See what the voltage does when hitting the start button.
That should not drop further down then say 9V.
If it does, either the start motor pulls too much current due to a failure, or the battery can't keep it up.
The battery could be faulty, or not getting charged.
When the bike is running, you should see the voltage go up quite quickly.
Since you say some days are good, then suddenly one day it refuses, might be a cable that is a bit loose, or something like that.
Might check the battery cables, if they are still connected to your battery properly.

Wish you success,
Moh

[Art]

A multimeter is your best friend here...

Slow cranking or multiple clicks (from the starter relay) when attempting to start the engine usually indicates there isn't enough power in the battery.

Test the battery's level of charge, expect more than 12.4v. If any less fully charge the battery.
Test the battery is holding charge, expect the level of charge to be maintained over a 24 hour period.
Test the battery's stand by current drain, expect less than 0.5mA for the SC58 or less than 2mA for the SC64. If any more you need to investigate the current draw.
Test the battery under load, expect more than 9.5v while the starter motor is cranking the engine. If any less suspect a faulty battery.