Re: [St] Don't jump start

[Eoin Kirwan <eoinkirwan@xxxxxxxxxx>]

On Sat 15 Mar 2008, Neil Lindsey wrote:
>
> any car battery that is in a reasonable state of charge should be more than
> capable of delivering the required current
>
> if you are still having trouble getting the bike's engine to turn over, I
> would suggest considering the quality of the electrical connections, and/or
> the gauge/quality of the jumper cables themselves

I found it hard to get a good connection at the bike battery, because the 
terminals are small, partially shielded by the battery case, and the booster 
cable clips are bulky. So the contact area was small, adding resistance. I 
overcame that problem by increasing the boost voltage from about 12.5 to 14.4 
V by starting the car :)

The cables themselves are quite thick and have been used to jump start cars 
with no difficulty.

Incidentally I have read in more than one car manual that you should *always* 
start the booster car when jump starting, in order to avoid draining its 
battery! The opposite of the accepted wisdom in the bike world, it seems :) 
the car manuals do emphasise the importance of connecting and disconnecting 
in the correct order, and ensuring the booster car is not running above idle 
when disconnecting, this reduces the possibility of transient currents.


Eoin

'04 ST955i

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