BGM stator problems

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
User avatar
TS1-200
registered user
Posts: 297
Joined: Thu Jan 08, 2009 1:19 am
Contact:

Have a 2nd hand BGM stator have done a check on it red & white 112, green & white nothing , red & white nothing what would need replacing, or who could repair it for me.
Keep on keepin on
Rally220
registered user
Posts: 86
Joined: Sat Aug 10, 2013 8:30 pm
Main scooter: Lambretta S2 TS1 240
Location: Liverpool
Contact:

Anthony Tambs can sort that for you, I don't know if he's a member on here but he is on FB and frequents Lambretta Street Racers page, and others etc. He's an electronic guru, he also makes the Gamma Units, so contactable here:

http://www.gammatechnology.co.uk/rtse1000.html
User avatar
Toddy
registered user
Posts: 6239
Joined: Sun Mar 08, 2009 12:01 am
Main scooter: Lambretta Series 1
Location: East Yorkshire
Contact:

Rally220 wrote:Anthony Tambs can sort that for you, I don't know if he's a member on here but he is on FB and frequents Lambretta Street Racers page, and others etc. He's an electronic guru, he also makes the Gamma Units, so contactable here:

http://www.gammatechnology.co.uk/rtse1000.html

+1 Top man and great work :D
As my Dad used to say "Each to their own lad"
User avatar
coaster
registered user
Posts: 3125
Joined: Wed Jan 07, 2009 12:35 pm
Location: London and Norfolk
Contact:

TS1-200 wrote:......have done a check on it red & white 112, ......... red & white nothing
Rather contradictory statements there but I assume you mean GREEN and white? That being the case it will probably need a new LT coil (about £23) but have a good check of the connections and the cable. Put the meter probe directly on the point where the green connects to the LT coil, if you then get a reading (close to 500 ohms for a BGM) the problem is in the cable but if you still get nothing and the soldered joint is good (also check the connection to earth) then it will be the coil.

Changing the coil shouldn't be too challenging provided you are reasonably practical and can operate a soldering iron ;)

Colin
Rally220
registered user
Posts: 86
Joined: Sat Aug 10, 2013 8:30 pm
Main scooter: Lambretta S2 TS1 240
Location: Liverpool
Contact:

coaster wrote:
TS1-200 wrote:......have done a check on it red & white 112, ......... red & white nothing
Rather contradictory statements there but I assume you mean GREEN and white? That being the case it will probably need a new LT coil (about £23) but have a good check of the connections and the cable. Put the meter probe directly on the point where the green connects to the LT coil, if you then get a reading (close to 500 ohms for a BGM) the problem is in the cable but if you still get nothing and the soldered joint is good (also check the connection to earth) then it will be the coil.

Changing the coil shouldn't be too challenging provided you are reasonably practical and can operate a soldering iron ;)

Colin
As I understand it you cannot check a stator with a multi meter, you will need an oscilloscope for a correct reading otherwise you will get false results? Its all above my pay grade but makes sense when Anthony Tambs describes what he's checking with oscilloscope.
Grumpy225
registered user
Posts: 650
Joined: Sat Nov 24, 2012 7:59 am
Main scooter: Gori200, rt195, ld150,rb20
Location: Bakersfield, CA
Contact:

Rally220 wrote:
coaster wrote:
TS1-200 wrote:......have done a check on it red & white 112, ......... red & white nothing
Rather contradictory statements there but I assume you mean GREEN and white? That being the case it will probably need a new LT coil (about £23) but have a good check of the connections and the cable. Put the meter probe directly on the point where the green connects to the LT coil, if you then get a reading (close to 500 ohms for a BGM) the problem is in the cable but if you still get nothing and the soldered joint is good (also check the connection to earth) then it will be the coil.

Changing the coil shouldn't be too challenging provided you are reasonably practical and can operate a soldering iron ;)

Colin
As I understand it you cannot check a stator with a multi meter, you will need an oscilloscope for a correct reading otherwise you will get false results? Its all above my pay grade but makes sense when Anthony Tambs describes what he's checking with oscilloscope.
You can check the resistance (Ohm) values of the individual components and that should tell you if the parts are good. The only way to tell when the trigger (firing point) happens is with an O scope.
eden
Dealer
Posts: 1043
Joined: Thu Feb 27, 2014 8:44 pm
Location: ILCLAND
Contact:

Rally220 wrote:
coaster wrote:
TS1-200 wrote:......have done a check on it red & white 112, ......... red & white nothing
Rather contradictory statements there but I assume you mean GREEN and white? That being the case it will probably need a new LT coil (about £23) but have a good check of the connections and the cable. Put the meter probe directly on the point where the green connects to the LT coil, if you then get a reading (close to 500 ohms for a BGM) the problem is in the cable but if you still get nothing and the soldered joint is good (also check the connection to earth) then it will be the coil.

Changing the coil shouldn't be too challenging provided you are reasonably practical and can operate a soldering iron ;)

Colin
As I understand it you cannot check a stator with a multi meter, you will need an oscilloscope for a correct reading otherwise you will get false results? Its all above my pay grade but makes sense when Anthony Tambs describes what he's checking with oscilloscope.
lol :shock:
User avatar
coaster
registered user
Posts: 3125
Joined: Wed Jan 07, 2009 12:35 pm
Location: London and Norfolk
Contact:

Grumpy225 wrote:As I understand it you cannot check a stator with a multi meter, you will need an oscilloscope for a correct reading otherwise you will get false results? Its all above my pay grade but makes sense when Anthony Tambs describes what he's checking with oscilloscope.
You can check the resistance (Ohm) values of the individual components and that should tell you if the parts are good. The only way to tell when the trigger (firing point) happens is with an O scope.[/quote]

I think I might know who you are talking about if its the guy developing a new ignition system with vids of his test model on FB. I would agree that he seems to know his electronic theory so I suspect you may have misunderstood exactly what he was meaning. The only time an Oscilloscope is going to be of use would be if you were experiencing triggering possibly false triggering. 99.9% of the time checking the resistance of the LT and Pickup with a meter will give you all the information you need about the stator and a strobe will tell when it is firing.

Colin
Grumpy225
registered user
Posts: 650
Joined: Sat Nov 24, 2012 7:59 am
Main scooter: Gori200, rt195, ld150,rb20
Location: Bakersfield, CA
Contact:

I'm not on FB so I have no idea who you are talking about but you are correct the only time the O scope really comes in handy is looking for erratic ignition problems. That and a Tach can tell someone a lot about what the ignition is doing.

The rest of the time I just ohm them out.
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 41 guests