Tea bag filter

[Notty]

OMG !i am not sure an in line filter would stop that !! what fuel are you using ? rusty cow shit by the look of it !! 

[seth]

It probably wouldn't stop it but it will give an early warning and easier to clean rather than having to remove the fuel pump as much to clean the tea bag as much or as often untill the problem can be fixed to stop it happening in the first place.

[mlivkovich]

I use 95 octane fuel. I fill it at the same fuel station where I fill my car with no problems for last 10 years.  I started thread about exhaust diameter and torque because I thought my 14 lost some torque when swithed to 4-1 exhaust, now I think this shit in fuel tank is reason for loosing power. Haven't tried it yet with clean tea bag but I am pretty sure it got its torque back! Next project is to fit in line fuel filter.

[gsxbarmy]

Might also be worth running some injector cleaner through once you replenish the tank with a fresh filter and fuel, as no doubt some crud could - or might - have got by and into the injector system. Injector cleaner should clear that - if there is any (so just a precautionary action).

The main problem though seems to be rust in the tank, so as you say that needs fixing first before anything.

The products from Frost in the UK are very good at fuel tank repair/ sealing against rust

https://www.frost.co.uk/auto-maintenance/automotive-tanks-products/fuel-tank-repair.html

[Mick_J]

Might be worth sealing your fuel tank as well as it might be badly rusted up inside.

[grog]

have you had a look inside tank with pump out, must be some serious bad stuff in there. how to fix, im not sure. maybe swill some rust converter in there. i dont really know. my mates 14 rusted tank out , it was stuffed. he had always used good fuel. just started leaking, new tank required. looks like you need to do something.

[KiwiCol]

I've not got this issue, but if I did, I'd be sealing the tank.  Surely there must be some epoxy 2 pack stuff that'd do the job properly? Set hard as nails, impervious to everything and doesn't breakdown under 100 years? & only cost £3.56 a litre.  If not, we should make some, and charge £4.00 a litre.

[mlivkovich]

Yes, I looked inside but didn't take picture. It's only rusted on the top around fuel cap (cca 20 cm in diameter). The rest is in good shape with no rust at all. Six months ago the whole tank had no rust at all, so I think it is still in good shape, just surface on the top is rusted. I also used syringe with clear hose to suck everything from it and there was about 1 cm of water. I noticed that vent hose was bent and clogged (obviously my mistake from last filter cleaning) and I can remember that my bike spent one night out in the rain (moto party...me drunk), so that time water could come into tank and maybe that is the reason for rust and so much shit on tea bag.

[Hooli]

My bike lived outside for years & gets used in all weathers, my tank is still clean inside.

It was rusty under the fuel cap, but only under where that sits. I took it off int 2016, treated the rust & painted it as part of a general tidy up to celebrate 100k.

[mlivkovich]

My bike lived outside for years & gets used in all weathers, my tank is still clean inside.

Try to wash a bike or leave it in rain with blocked vent pipe for a while....I am pretty sure that you'll have  water in tank. Obviously my mistake

[seth]

I had a few fuel problems a few years ago after filling up at a garage in Italy that must have had dirty tank.once cleaned all was good again .

[Hooli]

My bike lived outside for years & gets used in all weathers, my tank is still clean inside.

Try to wash a bike or leave it in rain with blocked vent pipe for a while....I am pretty sure that you'll have  water in tank. Obviously my mistake

Haha self-inflicted then!

[Andre]

Just can't believe that amount of crap in such short time.

Thanks for the reminder @mlivkovich  ! Had my tank turned 180 to sync the TB and put new vaccum hoses on. Had to pull the drain up a little to be able to make the turn.  Forgot to pull it down and check for kinks.

[mlivkovich]

I will never forget to check vent hose again!!! just 30 sec job to put hand under bike and pull hose down!

[Mick_J]

Well after a lot of pissing about and checking this that and the other I think I have isolated it to the IAP sensor, swapped it with the IAT sensor and the fault changed bike runs a lot better and i'm just hoping that replacing the IAP (which Andre is very kindly sending me from Germany) it seems to have gone but yesterday I had a total failure miles from home.  RAC collected me and brought me home adding 5.5 hours to my ride out  but I tracked that down to a high pressure bypass valve falling out of the fuel pump, a new wire cage will prevent that in the future.  Sensor is on it's way and I hope that will end the matter.
Thanks for your help Andre, you're a gent