Leaky Fuel tank

[cresad]

Hi all

I've got an on-going problem with a Hongyan 125 , it's another Chinese copy. The problem is that the tank sender unit leaks , it's got a shaped opening on the underside of the tank with a recess on the sender unit and it has a rubber oval shaped 'O' ring and I'm guessing the petrols getting passed that. I can't find a replacement as the bike itself isn't listed anywhere and other Chinese bikes are different , so I've been told , and I havn't been able to find an ordinary 'O' ring that will fit properly. I've tried blue hylomar , some black sealant that I can't remember the name of and today I tried some stop-leak that I got from Halfords , nothings worked.
I thought it was alright the other day when I took it for mot until I filled the tank up on the way home , it's the only thing keeping it off the road , as I use it for work , and I don't know what to try next , can anyone help please ?

Thanks , Adam

[unitynotsocri...]

To bodge it with sealant you need to have the tank drired and clean. . obviously any sealant must be petrol proof.
Letting thesealantdry off before tightening the sensorseal.or......
Get down a bike scrappers and test different tanks.
____________________
nearly a normal tax paying tosser.......with ferrileness suzi100,cg125,cb125scb100n,cb175,cd100,cj250t,kh250,c15,125 bantam,super 6,rickman gs750,xt500,250rs,dt175,lifan125,dolomite1850,metro,Morris220ld,morrisfg,leyland princess,range rover,corsa,vw camper .now struggling with legs. MORE ORDER = MORE CHAOS

[piazza]

Try here

https://www.chinesemotorcyclepartsonline.co.uk/search.php?partname=tank&#results

[cresad]

Hi , thanks for the reply's

Would you believe that cmc have exactly the same unit , I'll get a new on the way as soon as I can

Thanks again , Adam