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Ok guys I have got a racing CID unit and want 2 put a new cone air filter what size jet would I put on also would I upgrade my plug if so what plug???

Thanks guys I will give it a go at weekend and update when done

I have my urban dz 125 running well but it seem to be poring petrol out of the over flow pipe when petrol tap is on all when the engine is running on tick over. Can anyone help me with what this...

thanks stottey :icon10:

hers some pics of my hongdou urban dz 125
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hi guys anyone no what upgrades i can get and where from for more speed on this bike :icon10:

humanbeing - i didnt no that the "engine + gear" share the same oil thanks, i wonderd why i couldnt see where 2 drain the gear box oil lol.

she has just failed MOT on rear shock lower bush can...

It's a 4 stroke. I have done the engine oil change. But never done the gear oil change it's a 125cc manual clutch and gear. I was told there is 2 screws 2 open but where r they?

hi guys has any1 got some pics or a video of how to do a gear oil change on a hongdou urban dz 125.

i do no my way around a bike :rolleyes1: but have never done a gear oil change :eek2: and am...

hi im mark, ok i have had a all sorts of scooters and motorbikes up to a 125cc but this is my first chinese bike :rolleyes1: .
its a hongdou urban dz 125. i got this bike cheap as a none runner with...