MZ 125 SM Problem

[Treesrgreen]

I recreantly brought MZ 125 SM 2005 and I'm not getting any spark at all. I think it might be the CDI does anyone know where I can get a CDI from?

[DAVID THOMPSON]

the relay 19 problem if relay 19 not on or its contacts bad then cdi box not getting power

this can also be a bad side stand switch or kill button

[Treesrgreen]

the relay 19 problem if relay 19 not on or its contacts bad then cdi box not getting power

this can also be a bad side stand switch or kill button

what is relay 19?

[DAVID THOMPSON]

give me a day or so and i will send you a PDF file of how to look for the problem

i have not heard too many complaints that a cdi was bad
its always been it was not getting power for some other reason
dave


here is a link to a drawing of the 660 bikes on them its relay 30
it connects the power up when you turn on the key
the relay is not located the same place on an rt125 as a sx or sm
mine is near front of battery not sure where sx or sm it is located
when it works it hooks up a red white wire to a red black wire
i am looking for my camera
right click and save image as to save drawing
dave
download/file.php?id=3717&mode=view

[Treesrgreen]

Thank you

[DAVID THOMPSON]

NOTE
1the kill switch on the right handle bar must be in the on position
2 the bike in neutral
3the sidestand up

then you will have 12v on both red/black and red/white at the relay contacts when the key is on

on my rt125 if it sets for a long time and carb dries out its a bastard to get started when the carb is dried out....

[Treesrgreen]

NOTE
1the kill switch on the right handle bar must be in the on position
2 the bike in neutral
3the sidestand up

then you will have 12v on both red/black and red/white at the relay contacts when the key is on

on my rt125 if it sets for a long time and carb dries out its a bastard to get started when the carb is dried out....

I've done all that and still no spark, I'm going to take it down my local bike garage tomorrow and see what they have to say

[XCalsteRX]

I'm assuming you've tried a new spark plug? If so have you made sure the spark plug has a ground? If not put the side of the spark plug to the frame or engine, be sure not to hold the spark plug whilst doing this or wear some safety gloves otherwise you may get a 12 volt shock ha!

Trying to save you a hefty labour bill!

[Treesrgreen]

I'm assuming you've tried a new spark plug? If so have you made sure the spark plug has a ground? If not put the side of the spark plug to the frame or engine, be sure not to hold the spark plug whilst doing this or wear some safety gloves otherwise you may get a 12 volt shock ha!

Trying to save you a hefty labour bill!

I've tried a new plug and I've tried what you suggested only going to the garage because I've run out if ideas

[XCalsteRX]

Ahh okay, well I hope they find the fault! I also hope they don't charge you the earth for it to, be sure to let us know what it was if they find anything

[Treesrgreen]

I Will Do

[Treesrgreen]

Ahh okay, well I hope they find the fault! I also hope they don't charge you the earth for it to, be sure to let us know what it was if they find anything

Sorry its late

Due to a extremely poor wiring loom the CDI was fried.

Had to replace the loom and the CDI