Honda CBF 125cc 09' won't start

[notxalckram]

Hi guys,

My lovely commuter won't start up and I'm not too sure why. I came on it yesterday and all seemed fine. This morning I take the locks off etc. etc. and no start.

The indicators work, but no front light, and the volume of the horn is still loud so I'm not sure if it's the battery.

There's no evidence of tampering or cut cables (bike is locked outside the front of my house).

Any ideas? The fuel tank is half full too.

[GeorgeB.]

[notxalckram]

When I turn the bike on the engine light comes on then goes off after a few seconds. When I try turning the engine on its just trying to start up but nothing is happening.

Not sure if it is or isn't the battery. Going to have a look at the battery when I get home from tonight.

Checked everything else and can't find a thing out of the norm.

Thanks.

[GeorgeB.]

Is your fuel tap on? Have you tried bump starting it?
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Current: '99 Fazer 600 | '99 Range Rover P38 4.6 HSE
Previous: Keeway TX125 | CBF 125 | CB400SF Project Big One
CBT 04/12/12 | Theory 03/12/13 | MOD 1 06/01/14 | MOD 2 13/01/14

[Baffler186]

How old is the battery? First thing to do is establish if the battery is dead or not. if you haven't already got one, get a good optimiser charger and it will tell you as soon as you wire it up whether the battery is putting out enough to enter the charge cycle, or indeed if it's totally dead.

If battery is ok after a charge, try again, and get a multi meter to check the output when idling, and when revving at 5k rpm. Lots of threads on here to give you specific guidance.

There are a few things it could potentially be, but you need a working battery to start fault finding
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Current: 2009 SV650 S, 1990 Kawasaki GT550
Previous: 2009 CBF125, 1998 GSF600, 2004 FZ6 Fazer, 1978 CB400a Hondamatic

[Baffler186]

[notxalckram]

Not sure on the fuel tap, something to check when I get home.

The battery is as old as the bike I think, when I bought it there was no mention of new parts added to it that could be at fault for it not working.

I'll check the battery tonight, my partners dad has 2 motorbikes so I can only assume he will have the necessary tools to check.

[notxalckram]

As for the bump start, what is that? Moving the bike while trying to get the engine started?

[GeorgeB.]

Sounds like battery could be at the end of its life then, if it's 5 years old. Depends how it's been ridden/maintained though.

To bump start it, sit on it, turn the key to "on", put it into second gear and then try and get the bike moving by pushing it or rolling down a hill. You'll need to hold the cutch in whilst it's in gear.

When you're rolling at about 5 mph, let your clutch out. If it starts this way, it's most likely your battery.
____________________
Current: '99 Fazer 600 | '99 Range Rover P38 4.6 HSE
Previous: Keeway TX125 | CBF 125 | CB400SF Project Big One
CBT 04/12/12 | Theory 03/12/13 | MOD 1 06/01/14 | MOD 2 13/01/14

[Copycat73]

put a new spark plug in .. irrespective of whatever else you do.
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Whatever I post I have no citation and no intention of providing one..
caveat emptor

[notxalckram]

Turns out some cretins had vandalised the bike. Breaking the fairing and removing the spark plug.

Didn't notice until I took the fairing off the side and noticed a loose cable and no plug.

[Copycat73]

[Baffler186]

[Commuter_Tim]

Why remove a spark plug to vandalize a bike??

Did they piss in the cylinder or something?
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The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[SQL]

Possibly someone else with CBF trouble nicked the spark plug to get them home.

[Leepreston201...]

Hii there fellow riders
I have a Honda cbf 125 been working fine till the other day
Driving a long and started to lose power
I've checked the following
Spark plug
Fuses
Fuel pump
Fuel lines
Cleaned carb
Charged battery
Checked wires
Still nothing have fuel ect to please help MEE
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Ĺ.preston

[Ariel Badger]

They say that the criminal always returns to the scene of the crime.....Fes up, you nicked the OP's spark plug didn't you?
____________________
Bikers make great organ donors, get 115 on your licence today.

[davebike]

CHECK THE OIL !

Low oil is the commonest cause of problems it should be checked weekly at least !
____________________
Dave
NC750Xdct + others at work !
davebike1@gmail.com

[Evil Hans]

Fuck's sake, start a new thread!
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Triumph Sprint ST 1050. And it's Red.