Actually, now that I think about it, the positive terminal did touch the negative causing a spark when I installed the new battery. The problem was more acute after that. I think that could have caused the fuse failure.
Edit: they said that they checked all other electricals with a meter to make sure the problem wasn't elsewhere and found everything normal. Now, I would need to order a few 40A fuses to carry on my ride to make sure I won't get stranded.
How did you manage to touch the two terminals together? And for the fuse to blow, you'd have had to touch the output side of the fuse to an earth (frame - negative side of battery) somehow.
I'd order at least TWO fuses.
Well, if they've tested everything? You
should be OK... ...fingers crossed!
Next time you install your battery, fit the positive (RED) terminal first. Make sure the negative (BLACK - earth wire) doesn't touch the negative terminal on the battery
until you've finished with the positive one. Then if your screwdriver touches something on the frame, while you're doing the screws up, no sparks!
Note: It doesn't matter if the screwdriver touches the frame while tightening up the negative. It's already connected to the frame!
When you're removing the battery, remove the negative lead FIRST! Then the positive. Same reason.
At least now - if you have the same problem (fuse blown) again - you'll know where to start...
Have
you checked the voltage across the battery while its running yet? If it isn't 14 volts or so (with a bit of a rev) - they told a porky...
