Honda CG125 Burning Smell?

[astroscope]

HI Guys,
Just came to work today and just before turning the engine off, i smelt a little burning.
I inspected the Oil Drain Nut and put my finger under it. I saw some small amounts of oil.
Anything i can do?
I have done Oil changes myslef in the past and never changed the nut or anything else.
Is there something i may need to put between the Nut and the Engine to seal it?

Many thanks
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2010 Honda FES S Wing 125

[Martay]

I think there should be a washer between the bolt and engine that seals it. This should be replaced each time. They are very cheap to come by.
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Eat well, poo hard
Drives: Cavalier 2.0 16v
Rides: Slightly ratted Honda City Express

[N cee thirty]

there should be a rubber o ring around the nut,thats proberbly had it after being undone a few times
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[astroscope]

Thanks,

Do you know the name of this washer or rubber seal?
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2010 Honda FES S Wing 125

[N cee thirty]

https://www.wemoto.com/bikes/Honda/CG_125-ES4/04/picture/Sump_Plug_O-Ring/
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[astroscope]

Excellent,

Does this go between the Main Drain Nut and the engine?
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2010 Honda FES S Wing 125

[N cee thirty]

yes,it goeson the nut past the threaded bit so it seals everything

there should be a little groove for it anyway,put a little bit of oil on it before you slip it on
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[astroscope]

Found this on Ebay:

https://cgi.ebay.co.uk/copper-o-ring-oil-sump-plug-/170521396104?cmd=ViewItem&pt=UK_Motorcycle_Parts&hash=item27b3de0388#ht_500wt_1154


Copper O ring sump plug.

is this one better?
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2010 Honda FES S Wing 125

[N cee thirty]

ermm don't know tbh,mine just has the rubber o ring and is fine.
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[radical]

From memory the sump drain plug under the engine has a copper sealing washer and the oil filter drain cover on the side of the engine has an O ring.

[pepperami]

[astroscope]

AHHH!!

Mine never had the copper o ring in the main nut....

I've just done an oil change about 20-30 miles ago and now I may have to do it again just to put a new ring in it


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2010 Honda FES S Wing 125

[radical]

Drain your oil into a container and just reuse it again, also try to get a magnetic sump plug from ebay as they do help and keep any metal particals on the plug until the next oil change. There is also a thimble filter on the CG125 located underneath the gearchange lever which should be cleaned as well on each oil change.

[pepperami]

[astroscope]

I went on Ebay but could not find the Magnetic sump plug.
Also, where do i get the thimble filter and is it easy to change?

thanks
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2010 Honda FES S Wing 125

[N cee thirty]

when you take out the sump plug thing,a big spring should be behind it and the thumble thing should be on the end of that

thats what its like on my model anyway
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[radical]

[JH]

Depends on the year of manufacture, radical.

My CG125-W for example has just the plug on the side below the gear lever. Behind this plug is the spring and 'thimble' assembly mentioned, and there's no seperate sump drain plug. However, the W ceased production in around 2000/01.

Not sure what the 2007 models had without checking the manuals.
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Honda CG125-W
CBT: 7 Aug 2010

[radical]

[astroscope]

[fiery tupp]

To save draining the lot , do it cold & dont open the filler plug this will slow the flow & if you're quick you can after loosening drain plug , take it out have the crush washer in other hand fit it & bung it straight back in , still have something to catch oil .
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If you can't fix it with a hammer , use your head .

[JH]

[astroscope]

Ahh yes,

I remember that good old video. That's where I learnt how to do my first Oil change.

This person (Alan) also tells you how to fix the starter motor.

Excellent stuff
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2010 Honda FES S Wing 125