OP
UTC

Lurker
Vespa ET4 1999
Joined: UTC
Posts: 1
Location: Zittau, DE
 
Lurker
Vespa ET4 1999
Joined: UTC
Posts: 1
Location: Zittau, DE
UTC quote
Hi everyone,
I bought a 1999 Vespa ET4 125cc few months ago. It was working fine, except for the front lights. I changed both front bulbs (H7 and H3) with no problem. Few days after that the scooter stopped starting. No control lights light up, the break light doesn't light up for either brake. I tried checking and even swapping the 2 fuses in the left knee compartment, but still no success. Next I plan to swap the ignition switch.
What else could cause this?
TIA
@wbdvt avatar
UTC

Molto Verboso
'16 Sprint S 150, 2 x '06 GTS 250, '12 GTS 300, '74 Vespa 150 Super
Joined: UTC
Posts: 1673
Location: Vermont
 
Molto Verboso
@wbdvt avatar
'16 Sprint S 150, 2 x '06 GTS 250, '12 GTS 300, '74 Vespa 150 Super
Joined: UTC
Posts: 1673
Location: Vermont
UTC quote
Before you start randomly swapping stuff out, get a wiring diagram.

With a voltmeter, do voltage checks and find out where voltage stops in your system.
UTC

Hooked
Joined: UTC
Posts: 191
 
Hooked
Joined: UTC
Posts: 191
UTC quote
Where is your main fuse? On my LX50 the main fuse is in the battery box.

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