Lexmoto Adrenaline EFI fuel breather

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

Good day fellow bikers,

I have a 67 plate lex adrenaline EFI and i was advised the fuel breather inside the tank had snapped off? The bike runs perfectly fine but when over half a tank the fuel floods the breather.
Apparently this is a fairly common problem with the EFI model. I've looked into purchasing a new tank for Lexmoto directly for just over £100 assuming this would fix the issues.

Any thoughts?

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

Any pics of the offending part?
I'd want to remove the tank and examine it before spending any dosh.
If its a common fault/weakness there may be a DIY repair and/or beefing up job you can do to prevent it happening again
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Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

I dont have pictures right now, its inside the tank i believe it used to be a tube that came up, now is just a hole in the tank.
The DIY is open the tank up and reweld from what i've head but i cant find much on it online forums.
I've seen some chat in Owners groups on facebook

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

I suspect getting someone willing to reweld a fuel tank will probably end up costing more than a new tank all told, so it's a bit of a no brainer. If the repair is less likely to go wrong than a new tank, and the repair cost is identical to that of a new tank then I'd probably consider it.

However, as alluded to above, finding someone willing to weld a fuel tank will be difficult.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

Heres a pic from Ebay
It's some thing I'd have go at fixing with JB weld
Do you have the pipe?

https://i.ebayimg.com/images/g/IKsAAOSwPfBb058a/s-l1600.jpg
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bikers smell of wee

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

I dont have the pipe and id have no idea where it was supposed to be on the inside of the tank let alone be comfortable opening op the tank and resealing it Laughing

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

What's the breather, that bent tube in the middle? If so, I don't understand what the OP meant by "it's snapped off" and "it used to be a tube that came up, now is just a hole in the tank".

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

To be honest i dont know what it looked like before this fault occurred, if anyone has the EFI and could compare that would be great. When i look into my tank i just see a hole in the middle i was advised that there was supposed to be a fuel breather there. I never had any reason to look inside of my tank before this issue Very Happy

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

I wonder if they get broken cos bad design and folk clout them with filler nozzles?
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bikers smell of wee

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

so ive spoken to someone with the same bike who had the same fault and this was his description
"it's a totally shit design it is a copper pipe that comes up near the filler cap. It is very easy to Catch with the fuel pump if you go in to far"

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

AH ha! so my theory was right then
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bikers smell of wee

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

I see how it could be bodge job repaired but the issue is still opening up the tank to do so thats where i wouldn't be comfortable

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

So get your bit of Nylon tube, get tank off, empty, push tube up through the cleaned (inside!) remaining stub of tube on bottom, when about 2.5cm to go, smear the sides of the exposed nylon tube with Araldite, continue to feed the tube in ensuring Araldite is continuously drawn into the metal tube as the Nylon one feeds in, allow to set, snip off Nylon tube, reassemble.

Or take it to someone who can braze a new piece of pipe in (ask for an estimate of cost first!), or buy a new/2-hand tank.

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

So Lexmoto sent me a new tank for the old model Neutral

Curiosity killed the cat and i took my old tank off to get the snapped part out. Photos linked below. Unfortunately due to the angle there's no way to form a repair that doesn't involve splitting the tank open.

https://imgur.com/a/ZWSXEqg

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

Calumh96 · Two Stroke Sniffer Joined: 30 Oct 2018 Karma :

I have fitted my new tank now and am moving on with life.

For those who have this issue i have heard that other people who have snapped this have just blocked the hole in the tank completely and seem to ride just fine.

I'm not sure what long term damage this would cause i'd assume the breather is there for a reason.

misscrabstick · Crazy Courier Joined: 05 Jul 2013 Karma :

I am not sure it is an actual breather, I suspect it's a drain for the area around the outside of the filler cap, it's purpose being to drain away rainwater and fuel spillage.

Blocking it from underneath would simply mean a danger of rainwater buildup getting into the tank when you open the filler cap.