iiyama
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| posted on 10/8/07 at 05:40 PM |
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Battery/starter circuit
HOw does this work then? I mean I know how it works, but the battery I have can chuck out 170 cranking amps, (bike engine), the fuse in the loom
however is only rated at 30A.
Enlighten me! 
If its broke, fix it. If it aint broke, take it apart and find out how it works!
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David Jenkins
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| posted on 10/8/07 at 05:47 PM |
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In a car engine installation, the cable between the battery, solenoid and starter motor doesn't go through a fuse - they're wired directly
together using hefty cable. The only bit of the loom involved in starting is the lower-current feed that operates the solenoid when you turn the key
to 'start'.
Everything else gets fed via the fuse.
I'd guess that a bike isn't much different.
HTH
David
[Edited on 10/8/07 by David Jenkins]
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iiyama
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| posted on 10/8/07 at 06:04 PM |
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AH! All clear now Im looking at the Circuit diagram with enlightned eyes!!!!
Cheers!
If its broke, fix it. If it aint broke, take it apart and find out how it works!
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Peteff
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| posted on 10/8/07 at 07:18 PM |
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It doesn't put out all the 170 amps at once or it would be flat straight away. The equipment connected to the battery draws what current it
needs from the total and the generator replaces it. The 30amp main fuse on my bike covers the starter as well so you can't do any other damage
if you connect the battery wrong.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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RazMan
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| posted on 10/8/07 at 10:33 PM |
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quote:
Originally posted by Peteff
It doesn't put out all the 170 amps at once or it would be flat straight away. The equipment connected to the battery draws what current it
needs from the total and the generator replaces it. The 30amp main fuse on my bike covers the starter as well so you can't do any other damage
if you connect the battery wrong.
Pete, the starter won't be fused (as DJ says) only the solenoid. The starter can draw over 150A for several seconds without discharging the
battery too much. It is connected directly to the battery and bypasses the fuse box.
[Edited on 10-8-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Peteff
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| posted on 10/8/07 at 11:18 PM |
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Ah right.
The fuse is built into the solenoid.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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