Has anyone had to replace their fuel tap on a modern Vespa? Just looking for any tips. It seems straight-forward. Looks like it just clamps on to the bottom of the gas tank. Tight space to work in as usual.
I have the parts and hope to get to it this week. Right now I have drained the gas tank and pulled the fuel line off.
2006 Vespa LX 150
Tips for replacing the fuel tap (modern vespa)
Moderator: Moderators
Found this on the Modern Vespa site...hope it helps
To replace the tap, drain the tank into a clean container. I just siphoned it out when I did mine. Then, from below the tank, rotate the tap counter-clockwise about 1/4 to 1/3 turn. DEFINITELY have something underneath to catch the additional gas spillage!!!
After that, just transfer the 2 small hoses - 1 fuel line, 1 vacuum line - from the old tap to the new.
http://modernvespa.com/forum/topic6146?view=next
To replace the tap, drain the tank into a clean container. I just siphoned it out when I did mine. Then, from below the tank, rotate the tap counter-clockwise about 1/4 to 1/3 turn. DEFINITELY have something underneath to catch the additional gas spillage!!!
After that, just transfer the 2 small hoses - 1 fuel line, 1 vacuum line - from the old tap to the new.
http://modernvespa.com/forum/topic6146?view=next
Already done!
It was an easy job. Just loosen the clamp and lower the fuel tap. Drain the tank first of course. I thought that my fuel tap was leaking at the seal but in fact what I believe is the clamp on the fuel tap loosened over time and all it needed was the clamp to be tightened.
As luck would have it under the seat of the Vespa that Monica bought recently was a brand new fuel tap. So I decided to take mine out and replace it with that. I also bought a new gas line and clamps in case that was the problem. I replaced those just for good measure.
Taking it out wasn't too hard after all. The bolt on the clamp takes a 7mm socket for future reference.
When I took my fuel tap out my first clue that the clamp was loose was it was very easy to turn by hand. There was also some gunk between the seal and the opening. I cleaned it off and am keeping the old one as a back-up because I am pretty sure it isn't leaky after all.
I got it all back together and put a little fuel in to see if there were any leaks and after waiting and watching gave it the seal of approval. Started right up after that!
Glad to have it back on the road again.
It was an easy job. Just loosen the clamp and lower the fuel tap. Drain the tank first of course. I thought that my fuel tap was leaking at the seal but in fact what I believe is the clamp on the fuel tap loosened over time and all it needed was the clamp to be tightened.
As luck would have it under the seat of the Vespa that Monica bought recently was a brand new fuel tap. So I decided to take mine out and replace it with that. I also bought a new gas line and clamps in case that was the problem. I replaced those just for good measure.
Taking it out wasn't too hard after all. The bolt on the clamp takes a 7mm socket for future reference.
When I took my fuel tap out my first clue that the clamp was loose was it was very easy to turn by hand. There was also some gunk between the seal and the opening. I cleaned it off and am keeping the old one as a back-up because I am pretty sure it isn't leaky after all.
I got it all back together and put a little fuel in to see if there were any leaks and after waiting and watching gave it the seal of approval. Started right up after that!
Glad to have it back on the road again.
Was out and about all over town with the Vespa today. It is actually running a bit better with the new fuel tap I think. It was a bit sluggish off the start before replacing the fuel tap but now it has its zip back with the new one. So maybe the old fuel tap was gummed up a bit?
Last edited by Paul S on Thu Jun 19, 2014 11:15 am, edited 1 time in total.