LCGB Forums

Just a quick one.......I think i may have burnt out the black control box. Is there any way of testing what power should be going in and what power should be coming out before i fit a new one and burn that out too ?
Im running full DC.
Thanks in advance......Kev

Do you mean the CDI or the rectifier/regulator ? In most cases it's just as easy to swap with a known working one.

How long have you had it? If it's blown the power going in would be my concern. What makes you think it's "blown" or has it just stopped working?

As above, what black box are you talking about? is it for a SIP VAPE system or SIP speedo

Sorry fellas, it's the black box for the SIP speedo.

kevspeed wrote:Sorry fellas, it's the black box for the SIP speedo.

Is the speedo completely dead or just the speed part thats not working? asking as mine stopped working on the way back from Libramont The other functions all work on mine so could take some readings later in the week if no one else comes back

Speedo lights up, clock works, no speed reading, no rev reading, holding the button for 3 seconds to re set doesn't work, but pushing once for each function does.
I'm wondering if I have damaged something inside

kevspeed wrote:Speedo lights up, clock works, no speed reading, no rev reading, holding the button for 3 seconds to re set doesn't work, but pushing once for each function does.
I'm wondering if I have damaged something inside

I once trapped the wire coming from the button when I bolted down the headset top it stopped it working. btw what wire did you connect the rev counter wire too?

Brown lighting wire.

kevspeed wrote:Brown lighting wire.

I have a Wassel DC system and my revounter is connected to one of the yellows

I have a full GP sip speedo set up if you want to try various bits Kev? The only issue is I don't know when we'll next be over in egg-ball country.

coaster wrote:

kevspeed wrote:Brown lighting wire.

I have a Wassel DC system and my revounter is connected to one of the yellows

Yayyyyyyy......tried that and it now works
Right......Its just the function button problem left!
I think i may have sorted the speedo but its just getting the timing right between the monsoons to try it out!

kevspeed wrote:

coaster wrote:

kevspeed wrote:Brown lighting wire.

I have a Wassel DC system and my revounter is connected to one of the yellows

Yayyyyyyy......tried that and it now works
Right......Its just the function button problem left!
I think i may have sorted the speedo but its just getting the timing right between the monsoons to try it out!

Great news

Ok......all doom and gloom again........
Still no speedo ,the drive in the hub is turning the cable,but its not operating the needle in the speedo. I have it set for internal,so now im stuck .
To make matters worse,Mrs Kevspeed has an SIP speedo in her GP , which doesnt want to play ball either
Hers is an AC electrical system,and there is enough room in the headset for the black box. I have connected the Black wire to a good earth,but it looks like the red and brown both have to go in with the Brown wire from the harness,as its the 'Power' wire,but im slowly losing the will to live,as i cant get the bloody thing to function,either speedo or rev counter .......HELP

It will need a resistor sparg plug otherwise the electrical interferance kills the speedo or so I was told and that worked for me. My speedo stopped working comming back from Belgium

I found the drive via cable didn't work either Kev and used the electronic drive instead (no cable).
https://www.sip-scootershop.com/en/prod ... r_50000270

coaster wrote:It will need a resistor sparg plug otherwise the electrical interferance kills the speedo or so I was told and that worked for me. My speedo stopped working comming back from Belgium

Seems odd that the rest of the speedo works with the normal plug...... Still, this is Lambretta we're talking, so anything is possible. I'll give one a try!

Timexit17 wrote:I found the drive via cable didn't work either Kev and used the electronic drive instead (no cable).
https://www.sip-scootershop.com/en/prod ... r_50000270

It might come to that, if this resistor plug malarkey doesn't work........ I'm starting to miss the good old days when your speedometer gave an approximate speed of between reverse and 145mph!

kevspeed wrote:

coaster wrote:It will need a resistor sparg plug ............(

Seems odd that the rest of the speedo works with the normal plug...... Still, this is Lambretta we're talking, so anything is possible. I'll give one a try!

I didnt believe it either, mine stopped working around the time I fitted one of Anthony Tambs Gama units so thought that was interfering with the SIP but Ant told me to change the plug to a resistor version and all was good. Also using the sensor on the whell btw