Drain line blockage

[moanthebairns]

I've a blockage in my old track bike, I've taken the tank off and the hoses are ok I can blow through them. I've a blockage in the tank drain line. Pretty common with 675s but fk me can I shift this, can I fk.

I rammed 8 bar of air through it today at work, it just wouldn't clear. I've been at it for hours with steel wire I used for lock wiring, poking at it, getting some progress then I'm stuck. Ive even tried using the wire in my pistol drill to try scrape it out, won't budge past a point. I've now left plus gas soaking in it but I'm at my wits end. I've been at it for hours with no avail and I have the same problem with my road 675. Where do I go from here short of phoning Dyno rod out.

Is there something I can use chemically that will clear this. I'll happily admit I've probably put about another half a dozen scratches in this tank horsing it around, growing incredibly frustrated with it. The tank has been in the kitty litter at most UK race tracks though. I'm really not wanting to try this pish with my road bike. I do have a spare tank, I could just use that but fk me I can't be the only person who this has happened to.

[KTMsm]

I'm not familiar with that tank

I've had success with cellulose thinners cleaning carb blockages so I'd start with that

[moanthebairns]

Thanks for that, I got a tin of it a few days ago and it's finally unblocked. I filled the drain from the bottom of the tank up with the tank turned upside down, maybe that was a bit of mistake as it's peeled a bit of paint inside the tank but it's cosmetically fked anyway. A wee twenty minutes of firing steel wire through on the end of the drill finally cleared the block fully. What a
feeling when I discovered I was now bottoming out on the floor with the wire.



I got a few drain cleaners thinking they might help. They broke within seconds and nearly got stuck inside.



From now on any bike I've got I'll be skooshing a bit of wd-40 down the drain and vent regularly. I was at this for days, every time I nipped into the garage I was out with the steel wire for twenty minutes of so, I felt like Andy bding Dufresen.

[Krikkit]

Bloody hell, what an ordeal, could you tell what it was in the end?

[moanthebairns]

Likelyhood is corrosion, a constantly rusty slurry coming out on the steel wire every time I prodded it.

[OutInTheShed]

Too late, but I found the ideal thing to clear the filler drain line on my Ducati was a length of 2mm flexible stainless steel wire rope.
Which had been hanging around my workshop for about 25 years.

[moanthebairns]

OutInTheShed said:

Too late, but I found the ideal thing to clear the filler drain line on my Ducati was a length of 2mm flexible stainless steel wire rope.
Which had been hanging around my workshop for about 25 years.

Good shout, might be work getting a length just for some preventative maintenance. fk me I never want to endure that again.