Battery or starter?

[Santa-2512]

Just went to see if the bike would start this morning,

No surprise it wouldn't.

It wouldn't even turn over, but the starter makes one hell of a bang,

Almost like the solenoid is engaging very loudly, but not not enough power to do anything else.

New battery is on order,

I'll give the starter a strip and clean when i get some free time!!

Any known issues with the starters?


Mart

 

[UturnTony]

If you can, use jump leads from a car battery to the bike's. With the car engine idling leave it
connected for 10 minutes or so to bring the bike battery up a bit then attempt to start the bike.
If it goes then the battery is suspect if it doesn't then the starter/system.
You can of course just stick a charger across the battery for a while and see if it charges it.
A multimeter across the battery terminals indicating the voltage is a great way to asses a battery's
ability to start the engine, or not as a voltage below 11 or so probably wouldn't whereas a voltage of 12.5 probably would.

 

[autogs]

has the bike been standing?,if so alternator might have seized

 

[Pukmeister]

Is the engine good to turn over? Without ignition on, bike on centre stand, put into 6th gear and turn rear wheel by hand, the engine should bar over. Obviously you will fight against compression unless you have the plugs out.

 

[Delboy777]

has the bike been standing?,if so alternator might have seized

There is a good chance of that, DAMHIK.

 

[flatdog]

Sorry... but don't charge the battery off a running car.
Jump start it without the car running is the safest way.

 

[Santa-2512]

Hunter500000

Bike has only been standing for a week.
Will hook up the. Jump battery tommorow ( big old car battery ). Lol

 

[UturnTony]

Sorry... but don't charge the battery off a running car.
Jump start it without the car running is the safest way.

Reason?
I have done that many times without harm to either the car or the bike or for that matter myself

 

[UturnTony]

Bike has only been standing for a week.
Will hook up the. Jump battery tommorow ( big old car battery ). Lol

As i said give it ten minutes before you attempt to start it to let the battery come up some.
Assuming that is that it is really low.

 

[flatdog]

Reason?
I have done that many times without harm to either the car or the bike or for that matter myself

Power surge? Differing rate of charge may fry the bikes electrics, why take the risk when most car batteries can easily start a bike without an alternator charging it?

 

[AberdeenAngus]

Power surge? Differing rate of charge may fry the bikes electrics, why take the risk when most car batteries can easily start a bike without an alternator charging it?

Nope. None of that makes sense. What do you mean by 'power surge' and what by 'rate of charge'?
How can that affect the bikes electronics. Especially with the ignition off.

 

[UturnTony]

Power surge? Differing rate of charge may fry the bikes electrics, why take the risk when most car batteries can easily start a bike without an alternator charging it?

No, same charge rate on both which is approx. 14.7v for a 12v battery.

No power surge problem: the batteries act as reservoirs and will absorb (if) any "surges".

Having the engine running and therefore charging it's battery means it will also be charging
the bike battery while it is connected and as i said it is always a good idea to leave it connected
for a while before you attempt a start to give the flat battery some time to come up otherwise,
you can find that the flat battery will "sink" the good battery leaving not enough for the starter.
This, i have proved time and again.

NB.
I would advise though, that as soon as the engine starts, disconnect the leads.

 

[Bendy toy]

The issue is spikes and noise generated by the bike starter motor potentially damaging the car electrics.
Normally the sensitive stuff is switched out when you turn the key to start position. With car engine running all that noise can potentially do damage.
It's pointless anyway because any added oomph from the car alternator is minimal. It can't deliver the heavy current a battery can make.

 

[Greenman14]

If a car battery is man enough to start a car there's no reason the car engine needs to be running to jump start a bike. The fewer electrical item switched in the better. If you're still not convinced maybe read the car manual?

 

[UturnTony]

The issue is spikes and noise generated by the bike starter motor potentially damaging the car electrics.
Normally the sensitive stuff is switched out when you turn the key to start position. With car engine running all that noise can potentially do damage.
It's pointless anyway because any added oomph from the car alternator is minimal. It can't deliver the heavy current a battery can make.

If a car battery is man enough to start a car there's no reason the car engine needs to be running to jump start a bike. The fewer electrical item switched in the better. If you're still not convinced maybe read the car manual?

It wont hurt anything: TBH, you have both missed the point and not given enough thought about
what i wrote but, i'm not about to get into a deep debate about it. Never mind we all
have our view and yours is yours and you will do what you do and i will do what i do

Peace

 

[Santa-2512]

Battery

Just hooked up my old bench 12V car battery

Left for 10 mins to do its stuff, and left it hooked up as i pressed the go button.

First revolution was slowish (it was 0 degrees) and the bike has been standing for a week

but then it caught, and it fired straight up


New battery please


Mart

 

[Bendy toy]

It wont hurt anything: TBH, you have both missed the point and not given enough thought about
what i wrote but, i'm not about to get into a deep debate about it. Never mind we all
have our view and yours is yours and you will do what you do and i will do what i do

Peace

The point about starter noise potentially damaging car electronics is not an opinion. Back emf spikes can damage anything from alternator voltage regulator to anything outside the engine ECU.

 

[Greenman14]

Did you check the starter gears for grease? Mine were quite dry though not, I think, bad enough to cause the sluggish starting. That'll be a new battery then.

 

[Mike07]

Alti

Do you know its the battery not the Alti.

 

[NZRalphy]

Starter motors have a small gear box at the front. Fill it with soft grease.