OP
UTC

Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
 
Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
UTC quote
I have a modern primavera 2015, my scooter can start but won't move when I'm turn the throttle.... I just change the throttle body to the new one... Can anyone help me solve the problem Crying or Very sad emoticon
@nightwing avatar
UTC

Contributor
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
 
Contributor
@nightwing avatar
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
UTC quote
Did it move before you changed the throttle body?
OP
UTC

Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
 
Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
UTC quote
No it not... It also not move before... I thought it was the throttle body that broke so I change it
@nightwing avatar
UTC

Contributor
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
 
Contributor
@nightwing avatar
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
UTC quote
Can you roll the throttle hand grip? Does it move? Can you look at your throttle body and find the cable that operates when you roll the throttle? Is it there? Does it move? Is it connected?

I ask because your header says you can't turn the throttle but your narrative says you turn the throttle. Just trying to sort it out.


"Vespa primavera rough Idle and can't turn the throttle"

"my scooter can start but won't move when I'm turn the throttle."
OP
UTC

Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
 
Lurker
Vespa primavera 2015
Joined: UTC
Posts: 3
Location: Malaysia
UTC quote
The cable is connected and the the throttle move but the tyre won't move when I turn the throttle...the engine dead when I turn the throttle.. Is it possible the fuel injection broke?
@juan_orhea avatar
UTC

Molto Verboso
S150 '09, Beo 500ie '08
Joined: UTC
Posts: 1325
Location: Bermuda
 
Molto Verboso
@juan_orhea avatar
S150 '09, Beo 500ie '08
Joined: UTC
Posts: 1325
Location: Bermuda
UTC quote
You need to be ruthlessly methodical about this. If you throw random parts at it you'll never get it fixed. Engine not responding to throttle if the butterfly valve is moving in the throttle body could be a problem with fuel, or compression, which is easier to check. Does the engine stall? If so, spark could be the problem too.

Are you seeing a check engine light?

Don't the throttle bodies have to be paired to the ECU for proper idle speed? Replacing that would have been a LAST resort in my book, after replacing the fuel injector, but even that would be pretty far down the list.
@wheelman-111 avatar
UTC

Addicted
2010 S50 Modified "Punkin"; 2003 ET4 Malossi 187 "ISO"
Joined: UTC
Posts: 778
Location: Deepinnaharta, Texas
 
Addicted
@wheelman-111 avatar
2010 S50 Modified "Punkin"; 2003 ET4 Malossi 187 "ISO"
Joined: UTC
Posts: 778
Location: Deepinnaharta, Texas
UTC quote
Greetings:

Doesn't the immobilizer system limit RPM to 2K if there's a wrong key - or a malfunction? Could that be the issue?
@nightwing avatar
UTC

Contributor
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
 
Contributor
@nightwing avatar
2007 LX 150 (memories)
Joined: UTC
Posts: 8575
Location: New Hampshire
UTC quote
Can you push the bike by hand? Trying to determine if a stuck caliper is causing your problem. There was recently a thread about that same complaint. Engine would rev up but bike wouldn't move.
DoubleGood Design banner

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2024 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0116s ][ Queries: 3 (0.0041s) ][ live ][ 317 ][ ThingOne ]