help cg125 power problem

[markrolls88]

hi i have a cg125 just fit a new battery on it cos i thoght the battery was knackered but it wasn't clearly but i have had the currant checked at the local garage and he said there is currant going through it but the lights are dim te horn is quiet and when i push the electric start there is a click a box at the back of the battery i dunno what you call that box but it has two wires going through it and a red thing on top saying fuse i am guessing but is that the regulator rectifier if it is or not does it need replacing and how much will one cost and is it easy to fit
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sparky

[P.]

the clicking is coming from "the thing with the fuse" Its probably your starter solenoid.

It may have a charge going through it, but might not be strong enough to start the bike..

[markrolls88]

ha ok are they easy to fit
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sparky

[cb1rocket]

Is the battery charged? Fully charged i mean!

Possible other problems would be a poor earth, check the wiring loom and all earthing points - usually a green or black wire.

A wiring diagram is a must!

[markrolls88]

yea charged it thanks i think its the solenoid but i cant find one anywhere gunna phone breakers up and see if they have one hopfully thats the thing thats with it
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sparky

[rob_scott92]

Check your wiring first mate, could be something simple like a shite earth then you would've just wasted money!

Is it a reasonably old cg? Do your lights etc work fine even without the engine running?
As said previously, a wiring diagram is a must, i couldn't tell you how many times mines been useful but its been a hell of a lot!

You should be able to find the main earths pointed out in the diagram, if they're all fine then go more indepth into your switches etc. any 'dodgey' connections you come accross along the way, just re-do them to narrow down the cause of the problem.
Hope this helps, electrics are a bugger but its great when YOU fix it yourself for free
Rob

EDIT: Just read your first post, if your lights are dim etc. it does sound like something is draining all your power (ie. bad earth) do as suggested above

[Alexio]

LOL. When I saw the title "help cg125 power problem" I laughed and thought to myself, don't I know it
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will never give up his CG. I look at my fuel gauge more as a progress bar than a fuel gauge.
G: With my GSXR I do often effectively use it as a scooter with a clutch in town.
ms51ves3: why does it need 500 miles? Are you teaching it how to be a piston?

[rob_scott92]

[P.]

i tested my solenoid with a screwdriver... there is 2 terminals on the solenoid, i just bridged the gap for a split second, if it sparks..it working.

try changing the fuse/cleaning the contacts for the fuse

[markrolls88]

rob_scott92 yea good idea gunna check that thanks its a 2002 lights are dim and horn is quiet and starter solenoid clicks when i push electric start but dosn't fire up so i have to kick it also the problem with the light thing is if i go on a dark road that has tight corners i really struggle when it comes to slowing down cos when i slow down i would rather have a candle in there than a bulb it sure would be much brighter so i try not to go out at night
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sparky

[P.]

check all your earth connections, and like i said, the fuse on the solenoid, or take that battery off and recharge it.

[markrolls88]

i have checked the earth it aint the earth it is defo the starter motor because i opened it up and the spindle is not spinning but there is power going through it but i cant get hold of one
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sparky

[Robby]

What you are describing are the classical symptoms of a flat battery. I know you fitted a new one and you say you charged it, but give some more detail here.

My bike runs a battery of a similar capacity to a CG. I had a fairly flat battery, which took over 24 hours on my clever charger to fully charge. I don't know what kind of charger you're using, but if it's a clever bike specific trickle charger then leave it plugged in at least overnight. I wouldn't use a dumb type car charger, it supplies a lot of current which can overheat a bike battery. It's worth noting that a brand new battery still requires charging. Assuming a conventional lead-acid battery, they are supplied dry and the acid is added. You leave it for about half an hour, then connect a trickle charger and leave it overnight.

After you have done this, if the symptoms persist, it's time to check connections. Battery connections first, make sure the battery terminals are free of white corrosion and the leads show clean, shiny metal. If they are dull then this is a sign of corrosion, and you should clean them back with emery paper or wire wool and add a light smear of copper grease before reassembly.

If this doesn't fix it, then the frame earth points and starter solenoid connections are the next. Again, disconnect and check of corrosion, clean up to get bright shiny metal, then reassemble with a smear of copper grease.

Electrical components are quite tough in general, the weaknesses are in earth connections and bad batteries. Starter solenoids can suffer from corrosion inside (they act like a heavy duty relay), but can be dismantled and cleaned.

If you don't have emery paper, get some. It removes rust and leave a clean surface, whilst sandpaper or wet and dry, which look similar, never give such good results. They tend to score the surface and not remove rust so quickly.

[markrolls88]

i charged overnight also me and my mate opened the cap for the starter and pushed the electric start and it was clicking but there was power going to it but nothing inside moved we checked the earth and all the wiring
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sparky