Hi all

I've just bought a Sherco 290 2002 model, the fuel tank had some black goo around the petcock, as it was leaking a lot, I decided to scrape it off to see what the problem was...

turns out the tank is made of a soft plastic/polythene & the petcock doesn't sit flush against the tank base. As the plastic is pretty flexible, (it flexes more at one end than the other & has a bow in it). Does anyone know of a way to seal this? some type of polythene glue etc??

Cheers
Steve

Hi, you could buy a small sheet of 3mm thick EPDM rubber and make a gasket to go between the tap

base and the tank. If you have a good thread on the fixing it should pull it up ?

Here's a link to one on eBay, 100mm sq x 3mm thick = £2.40 delivered.

http://pages.ebay.com/link/?nav=item.view&alt=web&id=121210592045

I cut a tube and a couple of o rings.

To me it looks as if the trade insert has pulled out causing it not to sit flush I would remove the pet cock and see how flat the tank is with a straight edge . And it looks like some one has tried to melt the tank to get the thread insert out hence why the petcock is not sitting flat . To be honist you best off buying another tank as you will waste your time trying to seal it .I know this is not what you would want to hear but saves a big disappointment of it leaking all the time

Prob be better just to sell it and get yourself a beta or montesa, they don't get problems

Hi Folks, thanks for the info, I've made a temporary repair with some tube rubber & some foam, I'll buy some of the EPDM rubber as suggested, then if that don't work I'll start looking for a new tank...

Really appreciate the time you guys took to reply... thanks very much & happy New Year to you all...