Modern Vespa

Hi everyone! New to the board.

I was hoping for any advice. I'm a daily commuter in NYC. I have a 2019 GTS 300, 2K miles, bought new.

She's been running like a dream until today. Real sluggish acceleration. Funny thing is, if I turn off the ASR she seems to accelerate normally.

Has anyone experienced this?

I don't have ASR/ABS, but have you double-checked your tyre pressures and then re-calibrated the ASR?

Thank you for the response. The tire pressure is good. I didn't even know about recalibrating the ASR. I will do it in the morning and post the results. Thanks for the tip!

Ok. So I recalibrated the ASR and the problem persists. Accelerates like a dog off the light. If I turn the ASR off it's much better, though not as peppy as before this started. Has anyone heard of bad gas/ petrol causing this?

Try using some Seafoam to clean out the engine.

I will try that. Got fresh 93 grade but it is still running slow. Thanks.

Really you suggest Sea Form for a 2019 with 2,000 miles? If it needs Sea Foam something is really wrong with it.
Try the Calibration again. If that doesn't fix it I would go see the dealer as it is under warranty.

Do I have an ASR on my 2013?

My 2018 has ASR and 400 miles on it, for fun I took off ASR and boy howdy did it make a big difference. I thought I also might have had some bad gas or something with the way it would accelerate off the line. I turn off ASR now.

No

It happens when I try to accelerate hard, using (almost) full throttle. My tyres are worn out with 15.000 km on them, especially the rear one and the road surfaces even dry are sometimes slippery. Under this conditions my acceleration up to 40 - 50 km/h is under ASR control and feels sluggish... Needless to mention wet roads... I usually disable ASR to use the engine's power but one must be careful when accelerates during cornering. I see that tyres wear makes ASR really sensitive and annoying. But when the road surface offers really high friction, acceleration feels normal.
So try to see if the ASR index flashes on the dashboard during sluggish acceleration, and you will know if this reduces the power.

What's ASR?

Pinched from Google:

"A traction control system (TCS), also known as ASR (from German: Antriebsschlupfregelung, lit. 'drive slippage regulation'), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicles, designed to prevent loss of traction of driven road wheels."

So just an update: rear tire was damaged. When I was checking the air I noticed the nipple was damaged. Less than a minute later it was flat. I have to say the ASR probably saved me from something worse. I admit I was tempted to turn the ASR off and ride her to the dealer before the tire went flat.

Right now she's at the dealer. Now they tell me the engine is"making a noise," and they're gonna check it out thoroughly and may have to make a warranty claim...