[BrianSamui]

Since a few days proud owner of a 2005 VTX 1800. you the fun was only short. The engine stopped after 10-15 min. After a while I could drive a few meters again. The longer I wait, the further I got. Symptoms as if the engine does not get fuel.

I dismantled the tank and cleaned it. After that I noticed that a vacuum was building up. Next to the two fuel lines is still the drain from the hole under the amateur cover. Furthermore, a thin pipe, apparently without a hose. This seems to be the ventilation. However, this is completely tight. With a wire I got in a few cm deep but it is still absolutely tight. No air comes through. Does anyone have any advice?

Thank you, Brian

 

[Chicago-Spike]

Most often when this occurs, when a tank has been removed and remounted a vent hose gets pinched in the front brackets

 

[BrianSamui]

There is no hose attached to this small tube.

As described, there are three hoses on it. Two are benzien to the fuel pump and the other back into the tank. The second hose is at the connection that goes to the hole under the dashboard. The hose ends at the rear wheel. There rainwater runs off. However, the is not open in the tank, so can not be a vent. All three hoses have the same size.

Then there's this little connector that doesn't have a hose on it. That is absolutely closed. I can't squeeze air in or suck air out.

 

[Chicago-Spike]

Did the tank get coated inside with a tank sealer? This will clog all vent lines

 

[Hans&Feet]

What did you use as a cleaner??
The vent unit has a devise to allow air to vent but allows fuel and vapor to stay in the tank.

Evaporust cleaned the tank but plugged the vent.
Another cleaning of the tank with Evaporust with air pressure added to keep the
vent open. This may help and a picture of the vent device.

Gas tank pressurized - spraying gas out of gas tank cover

So I rode the bike all day today. At the end of the ride, filled up with gas and parked it in the garage. Went out about 2 hours later to add fuel stabilizer to tank, when I opened gas tank about a gallon of gas sprayed all over the place. I thought these tanks had a pressure relief hose? I see...

www.vtxoa.com

A low mileage VTX 2nd Gen 1800 (4k miles) parked for a long time...
The failure mode was fuel pump canister fuel of rust.
11 pages.... VTX 1800 lose power when hot under power

 

[brettp]

That was my post, and it was a pain in the a** to diagnose! Thanks to the people on this forum, we narrowed it down to the fuel pump. And when removed had a ton of coffee-like crap in it that was clogging the filter.

 

[BrianSamui]

I just got them. coated, I do not know. But the tank does not look coated from the inside (what I can see). Rather rusted. (For your info, I am in Thailand. They certainly don't do coated) ... I'm trying to derust it right now. I would be helped a lot if I knew where the thin tube ends. By my logic, near the gas cap. But where? Maybe I can get to it from the other side.

 

[brettp]

Can you not push a wire into the vent tube to clear it? Is there rust in the tank right now? If you answered no to the first question and yes to the second question, you HAVE to clean that tank out. I cleaned mine with 3 gallons of evaporust. But however you do it, you need to use compressed or canned air (with the tank cap removed) to make sure air can move freely to and from the tank.

 

[Hans&Feet]

Here is a view from a gen1 tank that has some of the bottom cut off .
You can see the fuel/air separator and it goes to the smallest tube fitting aka Vent.
The 1st Gen 1800 has a built in fuel pump with HP fuel line(banjo) and a return line.

https://www.vtxoa.com/attachments/1800-fuel-tank-vent-filter-jpeg.169608/

By the way we have a VTX 1800 rider, Sojourner in Chiang Mai, Thailand
Send him a PM aka personal message. 2002 VTX 1800C, red

 

[Sojourner]

Hello Brian, welcome to the forum. The best way to determine if you tank is not venting properly is when the bike stalls, immediately open the filler cap and listen for a rush of air entering the tank. Otherwise it could be a fuel filter issue. The US version microfiche of your '05 shows two small tubes next to each other at the left side bottom of the tank. Is that what you have? Mine is an '02 and only has one vent tube so I can't help you regarding the nipple without a hose. Evaporust is listed on Shopee if you want to go that route. Good luck.

 

[BrianSamui]

first of all thank you for all the help.
I am sure that the tank is not vented. When I drained the gasoline, it drained very slowly. Slower and slower. Opened the gas cap and it shoots out. Definitely no air coming in.
I got a wire in almost 30 cm, then it stopped. That's why I'd be interested to know where this little pipe ends. Unfortunately I can't see anything in the pictures.

Thanks also for the tip with shopee. That fits. I will try. I also make times forms of the underside of my tank. I am today in the course of the day in the workshop and put the pictures later.

 

[BrianSamui]

Okay, the worst has happened. I need a new tank. Can anyone recommend a dealer that will send it to me in Thailand? I would also order some more parts.

 

[Hans&Feet]

I get the feeling you dropped the fuel tank.

 

[BrianSamui]

Not me, and do not drop. The Thai mechanics pumped compressed air in to see if anything came out of the small tube. Three guesses what happened. grrrr
Lol .. Better to lol than angry

 

[brettp]

Pressure too high and/or didn't take the cap off?

 

[BrianSamui]

The tank has inflated on the underside. The sensor was also bent.

I am looking for a dealer who sells these tanks. Mine is impossible to repair.

 

[brettp]

Damn. Sorry to hear that.

 

[brettp]

Do you have access to eBay? Will be cheaper to find a matching tank than have one ordered. I'm not even sure these tanks are available from many.

 

[rangers4u]

You can probably buy an entire used bike (for a parts supply of your own) for what a new tank would cost you, provided you even find one.

 

[BrianSamui]

I'm in Thailand baby