OP
UTC

Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
 
Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
UTC quote
Hi all!

I just went to take my vespa et4 50 out this morning and it was struggling for power. It was stuttering as I was revving it and was taking much longer to accelerate than usual. After a few minutes it got a bit better but it is still really underperforming and sounds like it's struggling.

Can anyone help me with this. In so gutted;(
UTC

Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
 
Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
UTC quote
2-stroke or 4-stroke?
OP
UTC

Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
 
Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
UTC quote
Hi thanks for the reply it is a 4 stroke.
UTC

Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
 
Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
UTC quote
Start with the obvious things ... clean & check the ht lead & spark plug, air filter, fuel and vacuum line to fuel tap.
OP
UTC

Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
 
Member
Vespa et4 2004
Joined: UTC
Posts: 10
Location: cardiff
UTC quote
When I disconnected the HT lead nothing cut off. Could this be the problem?
UTC

Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
 
Enthusiast
GTS300IE
Joined: UTC
Posts: 82
Location: Hove, UK, EU
UTC quote
Maybe hot carbon deposits causing ignition, which isn't good, but this is beyond my experience. What does the plug end look like?

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