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last few days scooter has felt a bit 'boggy' throttle response not quite so good.

hit a speed bump very fast today lol and after scooter died.

starts first thing, but then boggs out when I give it gas and dies.

I look at carb and gas line appears to be full of fuel.

Thinking a carb clean is in order?? any other ideas of things to check?
@judy avatar
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2007 LX150 Daring Plum Leonardo Da Vespa
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Check your spark plug. Odds are that it came a little loose after you hit the speed bump. If it's not in there tightly it will cause the symptoms your having. Been there and done that. Start there
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Clean the carb properly! And the air-filter too.
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I think my starting issues were from bad gas. And others here have had the same problem. But since you hit a bump maybe it is something else... sorry I cannot be of more help.
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Test it on the center stand. Can you start it and allow it to just sit there and idle for a minute or more? If so, your idle jet is clear and functioning. Next, give the slightest amount of throttle - what happens? Finally, open the throttle more than halfway - what happens?
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1980 Vespa P200e (sold), 2002 Vespa ET4 (sold), 1949 Harley-Davidson FL
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@caschnd1 avatar
1980 Vespa P200e (sold), 2002 Vespa ET4 (sold), 1949 Harley-Davidson FL
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If this happened after hitting a bump real hard, first thing I'd look at is the carb to intake manifold connection. You might have jarred the carb loose from the intake.

-craig
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ya I'm leaning towards a carb cleaning too...

it starts and idles great, it is only when I slowly start rolling on the throttle that it dies almost immediately (with me sitting on scooter).

have to try rolling throttle tomorrow with it on centre stand
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Fixed!!! it was indeed the carb.

this write up is great: Vespa LX Carburetor Jets Cleaned

although I recommend cleaning both jets.. the "smaller" jet on mine had a giant chunk of dirt blocking it.

quite an easy repair - you just need a couple screw drivers!

i found the rear rubber boot very hard to remove, and in fact I actually just pulled the carb back and out of the front boot, and twisted it... without ever removing the rear boot! makes the job easier
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Rascal wrote:
Fixed!!! it was indeed the carb.

this write up is great: Vespa LX Carburetor Jets Cleaned

although I recommend cleaning both jets.. the "smaller" jet on mine had a giant chunk of dirt blocking it.

quite an easy repair - you just need a couple screw drivers!

i found the rear rubber boot very hard to remove, and in fact I actually just pulled the carb back and out of the front boot, and twisted it... without ever removing the rear boot! makes the job easier
Glad you got it sorted... That's one of the true beauties of the carbed LX - you can do that sort of repair on the side of the road, if necessary (and I have...and it sucks when the carb is piping hot). Your method of just turning the carb over with one boot still attached is exactly how I used to do it, as well.

Now...it might be time to remove/inspect/clean your air filter element, as particulate matter has clearly made its way past and into the carburetor.
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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Rascal wrote:
Fixed!!! it was indeed the carb.

this write up is great: Vespa LX Carburetor Jets Cleaned

although I recommend cleaning both jets.. the "smaller" jet on mine had a giant chunk of dirt blocking it.

quite an easy repair - you just need a couple screw drivers!

i found the rear rubber boot very hard to remove, and in fact I actually just pulled the carb back and out of the front boot, and twisted it... without ever removing the rear boot! makes the job easier
Please edit your original post to say [Solved].
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Well done!
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Cool. Getting a problem solved always makes one feel good. Now get out there and ride. Laughing emoticon
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