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charging battery
finlay - 14/4/08 at 02:13 PM

hi all

before i sart the engine i want to get the oil pressure up but the battery doesent have enough juice in it to turn the engine over enough to get the oil pressure up

so i was going to hook up my car battery to the bike engine battery with jump leads and just turn it over that way, that means i wont have to disconnect all the cables etc to haul the battery out

anybody see a problem with this ?

i have jumped started bikes may a time this way but just want to double check

cheers


Coose - 14/4/08 at 02:28 PM

Can't see any problems there!


02GF74 - 14/4/08 at 02:37 PM

remove the spark plugs.

if the battery cannot turn the engine over then the battery is knacked, too small or somethign is seriaouly wrong wit hthe engine.


Coose - 14/4/08 at 03:03 PM

Or just a bit flat...... An Optimate is a good thing!


Guinness - 14/4/08 at 03:34 PM

I'll second an Optimate. Mine is on charge all the time!

And I have jump started it several times from my car before I saw sense and bought the optimate!

Mike

[Edited on 14/4/08 by Guinness]


blakep82 - 14/4/08 at 03:45 PM

bike batteries are all 12v now aren't they (i thought they were still 6v until i saw my neighbour jump start his bike from his car)

engine on the car running, jump start as normal, but without any spark to stop it actually starting


twybrow - 14/4/08 at 03:50 PM

I am sure I read not to use a running car engine, due to the output from the alternator? Maybe not...

Have you checked your earth strap? I thought my battery was buggered, but in he end, it was a dodgy earht causing the lack of turn-over. Just a thought...!


Peteff - 14/4/08 at 03:54 PM

Take your plugs out and it will turn faster to get the oil up.


Dangle_kt - 14/4/08 at 04:31 PM

I'd invest in an optimate, especially if it will be a seldom used toy, it keeps the battery topped up and ready for those impromtu blasts on a summer evening - much better than getting all set up for it, and a flat battery ruins your night.

They aint expensive and can be left on all the time, plus with the water proof connector you just plug it in - take 3 seconds, rather than having to attach crocodile clips things to the battery terminals.

Car jump start will work for your first start though.


finlay - 14/4/08 at 05:10 PM

quote:
Originally posted by blakep82
bike batteries are all 12v now aren't they (i thought they were still 6v until i saw my neighbour jump start his bike from his car)

engine on the car running, jump start as normal, but without any spark to stop it actually starting


yea thats exactly what i want to do, the plugs and injector connections will be removed so engine wont start

i have turned the engine over but it just zapped the battery

cheers for the response gents