Help Needed!!!

[Neil030912]

Hey all im new here,

firstly Hi all,

now down to business, i have a 2002 Honda Nes 125cc which is a nonrunner, bought it as a nonrunner, been stood for a few months apparently,

Drained the 1mm of oil that it actually had in it and topped up fully, gave it coolant which also was none existant, took the spark plug out an binned it, gave it a new lease of life, charged the battery fully but still getting no spark?

what else can i do?

TIA

Neil

[jaffa90]

Where did all the oil / coolant go?
What safety cut out switches does this scooter have to kill the spark?
Why did you bin the spark plug?

[Neil030912]

Binned the Spark Plug as i bought new 1, Oil was basically none existant like the cooler,

Bought it as a none runner but was expecting it to have a bit of them both, but nope none

[Neil030912]

Think the only cut out is the side stand but i have been using the centre stand while been working on it

[Grubscrew]

Welcome.
Ignition switch faulty maybe. Have you checked the battery voltage even after it’s been charged as it still maybe knackered.
Is there an on off switch on the cluster. If so clean the contacts.
Is the coil accessible, have a look at the wires too and from the terminals.
In view it had virtually no oil or coolant in the bike it would ring alarm bells as to what lies beneath the plastics and tank.
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FJR1300/CBR1000F

[Neil030912]

ignition switch turns over the bike but dont get no spark.

Coil looks ok but ive ordered a new 1 just incase also debating buying new CDI unit for it just to be safe

[cb1rocket]

if it had hardly any oil then the engine is scrap. I hope you paid peanuts for the bike .
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Honda H100S2 Rebuild - https://www.bikechatforums.com/viewtopic.php?t=253852

[doggone]

[bikenut]

Do you have a manual and know of cmsnl for the exploded views, they will show stuff like ign system parts and cut out switches etc., very useful info. and free.

The oil that came out of the engine, did it contain "bits" and/or metal flakes etc.. Inspect the old engine oil. Did the coolant cap have any oil there?? and does the engine have compression??

Any mayo seen in the engine??

Get a wiring diagram and use your multi meter.

There may be a manual and wiring diagram on here but also look on cmsnl for clues.
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nuts about bikes

[cb1rocket]

[Neil030912]

So if its rarely the Cdi does that mean the Coil could be faulty??

[Grubscrew]

Coils and cdis rarely go down, many bikes made in the 80s/90s still operate on their originals.
Get back to basics with observation on wiring loom, earthlings, connector blocks.
As to my question earlier: is there an on off switch on the handle bars, as some bikes have been known to spin over but won’t fire with the switch in the off position.
Side stand also. Perhaps by pass these items.
What’s the plug cap like? The HT lead(s).
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FJR1300/CBR1000F

[Neil030912]

Ordered new coil with plug cap waiting for it to come, No switch on handle, side stand i disconnected but then there was no power at all, wouldnt even turn over.

[Grubscrew]

Does the neutral light come on?
Have you a multimeter , only a few quid.
This ma help
https://www.geneva-racing.ch/~alains/NSRtips.doc
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FJR1300/CBR1000F

[Neil030912]

Yes all lights, indicators, horn etc work but just no spark. Picking a Multimeter up on monday

[WD Forte]

I wouldn't spend on anything other than a meter at this stage
as the 1mm of oil and zero coolant could mean the engine has been run dry with no coolant and FUBAR.
A few tests with a meter will help you find out why its not sparking
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bikers smell of wee

[Neil030912]

ok thanks for the info

[Robby]

It could also be empty because someone else drained it getting ready for a rebuild, then decided to not bother.
Quite possible that someone else has also tried to fix it, and decided the problem was not worth fixing.

Still, nothing wrong with having a go. Multimeter and wiring diagram, chase through the ignition system until you find a problem.

[Neil030912]

Thanks Robby, been a bit wet today to do anything on it so back to it tomorrow hopefully.

[bikenut]

So no bits in the oil and you are getting a multi meter, even a cheapo one will help.

Without a wiring diagram you are like trying to find your way to Talybont, unless you make your own that is, diagram not Talybont.

Which Talybont by the way??
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nuts about bikes

[bikenut]

You googgled cmsnl yet??
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nuts about bikes

[Neil030912]

Yes thanks a honda parts website??

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[Neil030912]

Yes its a Honda Nes 125cc Scooter not a bike