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@maxx28 avatar
UTC

Addicted
GTS 300 Super
Joined: UTC
Posts: 672
Location: Los Angeles, CA
 
Addicted
@maxx28 avatar
GTS 300 Super
Joined: UTC
Posts: 672
Location: Los Angeles, CA
UTC quote
Idles and Runs perfectly fine, but when i come to a stop sign or a red light, and i try to accelerate suddenly the engine hesitates for a second. Total loss of power and it comes right back up. Any ideas?
@crackedegg avatar
UTC

Enthusiast
2018 Vespa GTS300
Joined: UTC
Posts: 68
 
Enthusiast
@crackedegg avatar
2018 Vespa GTS300
Joined: UTC
Posts: 68
UTC quote
Traction control kicking in because of low tire pressure is possible. Check tire pressure first, if still persists try asr calibration. Have you tried turning off asr?
@mike_holland avatar
UTC

Ossessionato
GTS300 Super 2015 Blue, GTS300 Super 2023 Beige
Joined: UTC
Posts: 3379
Location: Sydney, Australia
 
Ossessionato
@mike_holland avatar
GTS300 Super 2015 Blue, GTS300 Super 2023 Beige
Joined: UTC
Posts: 3379
Location: Sydney, Australia
UTC quote
I always turn off the traction control when I start the scooter, because of this hesitation and the same hesitation going over bumps. I would only leave it on if the roads were wet or gritty. Acceleration is much smoother without it.
@schuitro avatar
UTC

Member
GTS300 Super HPE, Primavera 125, S 50 4T
Joined: UTC
Posts: 16
Location: Belgium
 
Member
@schuitro avatar
GTS300 Super HPE, Primavera 125, S 50 4T
Joined: UTC
Posts: 16
Location: Belgium
UTC quote
The traction control compares the speed of the wheels. If the difference is too big it concludes there is a loss of traction on one of the wheels and it will reduce power.
It becomes more noticeable when the tire pressure is too low.
Inflate the tires. Without passenger front 1.8 bar (26 PSI) and rear 2.0 bar (29 PSI). If the ASR is still very noticeable you need to recalibrate the ASR. The procedure can be found in the manual, it will take a couple of minutes to perform.
@tinddu avatar
UTC

Enthusiast
2022 gts 300 touring
Joined: UTC
Posts: 95
Location: pennsylvania
 
Enthusiast
@tinddu avatar
2022 gts 300 touring
Joined: UTC
Posts: 95
Location: pennsylvania
UTC quote
Maxx28 wrote:
Idles and Runs perfectly fine, but when i come to a stop sign or a red light, and i try to accelerate suddenly the engine hesitates for a second. Total loss of power and it comes right back up. Any ideas?
i had the same issue on my gts ,i recalibrate the ASR and good to go
@pigletpilot avatar
UTC

Molto Verboso
Gina, 1965 Vespa 180SS, Bella,1968 Vespa 150 Super, Mia, 2017 Vespa Primavera 70th Anniversary 150ie, Gabriella, 2017 GTS300 ABS
Joined: UTC
Posts: 1894
Location: Hamilton/Kirikiriroa, NZ
 
Molto Verboso
@pigletpilot avatar
Gina, 1965 Vespa 180SS, Bella,1968 Vespa 150 Super, Mia, 2017 Vespa Primavera 70th Anniversary 150ie, Gabriella, 2017 GTS300 ABS
Joined: UTC
Posts: 1894
Location: Hamilton/Kirikiriroa, NZ
UTC quote
What they all said. My current tyres really need new valves but I hate the thought of having to have the back end dismantled. Soon maybe as I have to top them up weekly.
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