OP
UTC

Lurker
Vespa gt 200 2006
Joined: UTC
Posts: 2
Location: Speedometer
 
Lurker
Vespa gt 200 2006
Joined: UTC
Posts: 2
Location: Speedometer
UTC quote
hello how's everyone doing im new here. im having an issue with my vespa about 2 weeks ago I took off the speedometer to replace the battery for the time clock on my vespa gt 200. when I did the gas gauge needle had fallen off I did not think much but to put it back on to the Empty line. rode it for 40 miles and noticed my gas gauge was stuck on the full level I took gas out and still stuck all the way at the top on the F mark. when I turn the key the needle goes up to full and when I turn off the vespa and turn the key off the needle goes down and it should. can anyone give me a few tips to try or what I could do to fix this thanks everyone.
@tbrduc avatar
UTC

Member
GTS250ie. Malaguti Yesterday
Joined: UTC
Posts: 41
Location: Vienna, VA
 
Member
@tbrduc avatar
GTS250ie. Malaguti Yesterday
Joined: UTC
Posts: 41
Location: Vienna, VA
UTC quote
Well, first, the lack of punctuation makes this tough to read.😉

But, can you access the fuel tank float? Open the speedo again. Remove the float and manually make the needle move.
I just did that with a Non-Vespa.. to test the various elec bits.
Fuel not needed. Turn on the key..gently raise the float… see how the needle responds.
Just a thought.
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43934
Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43934
Location: Pleasant Hill, CA
UTC quote
Tbrduc wrote:
Well, first, the lack of punctuation makes this tough to read.😉

But, can you access the fuel tank float? Open the speedo again. Remove the float and manually make the needle move.
I just did that with a Non-Vespa.. to test the various elec bits.
Fuel not needed. Turn on the key..gently raise the float… see how the needle responds.
Just a thought.
Access to the float is the stumbling block.

I expect there's a bad connection to the headset from the sender.
@znomit avatar
UTC

Veni, Vidi, Posti
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
Joined: UTC
Posts: 10364
Location: Hermit Kingdom
 
Veni, Vidi, Posti
@znomit avatar
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
Joined: UTC
Posts: 10364
Location: Hermit Kingdom
UTC quote
There's a pin it rests on at empty? Probably with the scooter off it drops way below that so you need to recalibrate.

Fill the tank.
Pull the needle off with the scooter on.
Put the needle on pointing to full.
OP
UTC

Lurker
Vespa gt 200 2006
Joined: UTC
Posts: 2
Location: Speedometer
 
Lurker
Vespa gt 200 2006
Joined: UTC
Posts: 2
Location: Speedometer
UTC quote
znomit wrote:
There's a pin it rests on at empty? Probably with the scooter off it drops way below that so you need to recalibrate.

Fill the tank.
Pull the needle off with the scooter on.
Put the needle on pointing to full.
Thank you for your reply. I tried that and still no luck.
@vintage_red_matthew avatar
UTC

MV Santa
GTS250, 1975 VBC, 1980 P200E cutdown
Joined: UTC
Posts: 4798
Location: Sedgwick, Kansas
 
MV Santa
@vintage_red_matthew avatar
GTS250, 1975 VBC, 1980 P200E cutdown
Joined: UTC
Posts: 4798
Location: Sedgwick, Kansas
UTC quote
I have a GT that reads full all the time. Motovista suggested that it was probably a bad sending unit so I bought a new one but because of other priorities I haven't installed it yet.

I haven't looked at the service manual yet. Is it as hard to change as the GTS sender/pump unit?

Luckily the low fuel light is working and I carry a gallon of gas in the pet carrier. If it had a trip meter that would be great but it doesn't.
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