Had to do my first ever manly thing.

[Jonathan A]

My Hyosung GT650R did not start earlier on, so I jump started it from my mums car...and it worked (got the terminals wrong at first though )

I'm guessing it needs a new battery...so can anyone recommend a good one?

Cheers

[CG Sam]

Congratulations on the man stuff! Can't remember the first thing I did. May have been learning to weld. Or fixing a fence etc.

Not sure on what the best new battery for it would be, but it's not meant to be good to jumpstart bikes from cars, but don't think once will hurt! Get a trickle charger when you get a new battery, few quid but always useful
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CG125, SV650S, CBR600F, GSXR600 SRAD

[misscrabstick]

There is nothing wrong with jump starting bikes from cars providing they are both 12 volt systems, reversing the polarity though can get you into a massive world of hurt and trouble, I do hope your bike will still charge the battery correctly, and also the poor car, often incorrect polarity will cause issues such as blown fuses/fusible links and alternator/regulator/rectifier/ control unit damages,

Fingers crossed eh!

[Jonathan A]

well the car worked fine after...still we live and learn

[G]

If the car engine isn't running, can't see any reason it would be 'bad'.

But a man would have at least tried to bump start it first .

Check the bike is charging and so on before replacing the battery.

If you're planning to sell the bike in the next couple of years and keep it in good nick generally - the cheapest you can find!

And yes - seen ECUs and the like easily blown from reversing polarity - in some cases writing the car off!
Would presume it's more likely the bike to be damaged than the car, at least - as it was the one with the dead battery, rather than the much larger fully charged battery.

[Jonathan A]

I tried to bumps start it but the road was wet so the back wheel just slipped

[Jonathan A]

well the car ran fine after so I I pressume its ok!

[G]

It's certainly harder in the wet - did you jump on the bike?

Ideally you let the clutch out while you are landing down on the bike.
This give it some extra traction

Sometimes I go for side saddle, sometimes jumping right over.
If there's a bit of a slope or I can get up to speed while over the bike, I'll stand up then drop my weight down when letting the clutch out.

[Jonathan A]

I'm not sure if I could manage that without something awful happening On 125s I allays just hobbyhorsed them allong

[G]

It does take a little coordination to get it right - jump then release clutch while landing on pegs/seat, but is fine when you've done it a few times.

You can do side saddle too, but if you're not confident with such things, you may not like riding off side saddle.

A lot of 125s can be bump started without sitting on the bike at all - I could do the NSR in 2 steps when I got used to it.

[Jonathan A]

[Boxing]

Bump starting is easy. What I do is I get it rolling, hop on the seat give it a couple of pushes with my legs once I'm at say my running speed whilst sat down, I pull the clutch in put it in first, stand on the pegs and then drop my backside on the seat and let the clutch out at the same time.

Easy once you've done it the first time.

I also live in Leicester, which is full of hills, which comes in handy.

[G]

You're unlikely to fry the car, as above - it'd be the bike you would fry as that's the one with the massively weaker power source.

Possible you have done some damage, but haven't noticed it yet.
Hopefully you're lucky - if it's only for a second it's generally ok - it's when someone clamps it on that it really starts to cause problems!

Think motobatt has an ok reputation.

[stevo as b4]

At least you didn't try to bumpstart a Ducati 996, as that is usually a massive fail for most human species!

[Yoyo]

Depending on the year it could the charging system needing to be replaced. Or the side stand relay starting to go.

I had the same problem with mine. Just carry a 10mm spanner with you so if it does die and won't start, take the front seat off and swap the relays over. They are all the same apart from the indicators.
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Joe: I don't wish to floccinaucinihilipilificate your choices, but the best word in the world is gaylord.

[Jonathan A]

It's a 2007. It hasn't got a sidestand switch

[uberkron]

G, un fused after market ecus with no diodes in them might go tits up, but in ten years of auto sparkying ive not seen one fail from reversed polarity. Seen many a rectifier fail from it though.

The un fused aftermarket ecu i speak of was fitted to a crappy old maserati biturbo. The owner charged a flat battery the wrong way, put it back in the car and let the smoke out. Jumping anything, from a running vehicle is generally best practice. As voltage drop through the leads is reduced, and as a running, charging vehicle sits around 14 volts, it could not damage another vehicle that when running, sits around the same.

But then again, i use jumper leads most days. Could possibly be daunting if a first time. Small sparks and what not.
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i ride a zip 50 2smoke. It overtakes a hundred times a day.

[Pete.]

Jump-starting is easy if you follow one simple rule:

Put the red lead from battery plus to battery plus before you do anything else.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[G]

[Jonathan A]

Well the car was absolutely fine on a 30 mile run today, and the bike was fine on it's run yesterday....so I think its all fine :p

Is it ok to replace a normal maintenance free battery with a sealed motobatt one?

[P.addy]

Yes...

[G]

Maintenance free means sealed.
The only reason I can see to go for one of them over a 'normal' battery is it leaking when the bike's on it's side - which for bikes is quite a good reason. For cars, it's a bit less of an issue, of course.

[map]

[Jonathan A]

Yea I tried in 2nd...I might practice bump starts one day

[Jonathan A]

can a motobatt just be put straight from the box into the bike?