| Change the filter anyway, If you don't know when it was last done it probably needs doing.
The 30A fuse is between the battery and the regulator. There are only 2 ways that it is going to blow;
1. If there a huge load on the battery, like a massive short circuit, causing the regulator to output its full capacity, but alternator couldn't produce that much current anyway.
OR
2. If the voltage regulator is short-circuit internally, connecting the battery voltage to earth. The fuse is there to protect the battery and stop the wiring going on fire in the event of this happening.
The 3A fuse is for the ignition sense to the regulator. The fact that this is also blowing makes me pretty sure that regulator is faulty.
When you have the bike running, connect a meter across the battery reading volts. It should read between 12V and 13V with the ignition off rising to around 14V with the engine running. I think that you'll find that it doesn't. |