P Range Front Indicator Mystery?

Anything related to Vespas... ask tech questions, post helpful info, or just read and learn.
Toot-oasc
registered user
Posts: 98
Joined: Wed Jun 18, 2014 11:20 pm
Main scooter: Lambretta
Contact:

Can anyone suggest what is causing the following:

A Mk1 P Range Vespa with front indicators that when switched on do not flash?

The relevant back indicator, and indicator warning light, on the headset flash as expected, yet the front indicator stays on solidly when switched on.

I've connected a replacement indicator switch directly into the loom under the horncast, I've tried a band new flasher relay, I've checked and scratched off paint where the front indicators earth to the frame inside the legshield toolbox, changed the bulbs, yet there is nothing obvious that I can see wrong amongst the wiring in the headset.

Idea's what I must be obviously overlooking would be welcome.

Has anyone has a similar indicator issue - how did you sort it?

Cheers

Toot
gaz_powell
registered user
Posts: 1208
Joined: Sat Mar 28, 2009 1:10 pm
Location: hartlepool
Contact:

Toot, you've done everything I would have done, is it one or both that stay on ?

Only thing I can think of would be to take the indicator assembly out of frame and check carefully the bulb holder/metal connections - part of it has a metal link from the bulb holder part to the where the fixing bolt goes through holder and frame, I once had one of them break which stopped the earth continuity but can't remember if kept them on or off.

Vespa for Brid?? I
I'm thinking of giving mine a run out there - Its only been ridden to test centre in the last two years

Gaz
Toot-oasc
registered user
Posts: 98
Joined: Wed Jun 18, 2014 11:20 pm
Main scooter: Lambretta
Contact:

gaz_powell wrote: is it one or both that stay on ?

Gaz
Cheers Gaz, something to look at (again).

It's each respective side front indicator that stays on, whilst the back one and headset indicator light flashes as expected.
gaz_powell
registered user
Posts: 1208
Joined: Sat Mar 28, 2009 1:10 pm
Location: hartlepool
Contact:

Any luck??
Daggs
registered user
Posts: 776
Joined: Wed Jan 07, 2009 1:23 pm
Location: Addington Kent
Contact:

You do have the appropriate wattage lamps fitted?
Toot-oasc
registered user
Posts: 98
Joined: Wed Jun 18, 2014 11:20 pm
Main scooter: Lambretta
Contact:

Not yet had the scoot back round to have a look at (it's a young lad that's just bought it), I'll ask him to bring this round this week and have another look.
gaz_powell
registered user
Posts: 1208
Joined: Sat Mar 28, 2009 1:10 pm
Location: hartlepool
Contact:

An "easy" job, for a favour ....turned nightmare !!!
Morgan
Posts: 133
Joined: Sun Mar 17, 2013 10:31 am
Main scooter: T5 Vespa Mk1
Contact:

I suspect a bad earth.

i'd be inclined to run a wire from each indicator to a good engine earth (as opposed to the local frame earth) with all 4 indicators on the same earth point.

This will eliminate any bad earth points. If all working re-attach one at a time checking each time one is re-connected to it's own frame earth.
Toot-oasc
registered user
Posts: 98
Joined: Wed Jun 18, 2014 11:20 pm
Main scooter: Lambretta
Contact:

Morgan wrote:I suspect a bad earth.

i'd be inclined to run a wire from each indicator to a good engine earth (as opposed to the local frame earth) with all 4 indicators on the same earth point.

This will eliminate any bad earth points. If all working re-attach one at a time checking each time one is re-connected to it's own frame earth.
Cheers, great idea. :)
holty
registered user
Posts: 908
Joined: Wed Jul 15, 2015 11:52 pm
Main scooter: lambretta gp
Location: east yorkshire
Contact:

check that the correct bulbs are fitted, they might be the wrong type or wattage ?
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 20 guests