New 125sm owner

SM, SX, RT, FunX, and models re-branded as ATK in U.S.

Moderators: DAVID THOMPSON, phlat65

New 125sm owner

Postby Tommyramone55 » Thu Jan 11, 2018 9:06 pm

Hey everyone,

Just bought an 02 125sm for my lady to start riding. Anyone know where I can pick up a manual?

Having a no spark situation. And the shift shaft seems to have a lot play. Any input I would love to hear too.

Thank yall
Tommyramone55
 
Posts: 3
Joined: Thu Jan 11, 2018 9:00 pm

Re: New 125sm owner

Postby DAVID THOMPSON » Thu Jan 11, 2018 9:56 pm

welcome

wiring drawing in my picture gallery

also do a relay 19 and or relay 30 search

this relay carry's all power in the bike and its common for it to go bad
in a very quiet room with the tank off listen for it to click to tell which it is
its at a different place than on my rt it has red/black and red/white wires and a a green one to the neutral sw
dave

and the wiring harness is getting old and tired on these bikes
wire harness was not a very good kit when it was new
Dave 2002 MZ RT125+1995 Saxon Tour(500cc)
1997 MZ 660 Traveller+6/13/09 WV USA
"IN the end times the IDIOTS will be in charge
of everything"
"I like the road less traveled if it's PAVED!"
wd8cyv at yahoo dot com
User avatar
DAVID THOMPSON
Moderator
 
Posts: 5149
Joined: Sun Nov 23, 2003 11:01 am
Location: Parkersburg, West Virginia USA .questions answered MZ 95 up, BMW 1953 to 1979 and ham radio WD8CYV

Re: New 125sm owner

Postby Tommyramone55 » Sat Jan 13, 2018 8:26 am

Hey man,

Thanks for the reply. Yeah finding parts seems to be a lot of fun.... (all coming from Germany, wish I could just simply swap in a Honda motor or something lol!)

So yeah, previous owner hacked the wiring up some in removing blinkers and such. But I believe I have found my problem. Bike turns over just no spark, and no power to the coil.

I did check, and jump one of those relays to confirm those were good. Whichever is the common fault one....I think 19?

What I believe my issue is....the CDI or "ignition box" in a manual for the mz 125 sm I found a test for it......ohm out the re/white and brown wires from the cdi if you get anything less then 0.5 ohms it is bad. What is odd, when I first touch them I get a resistance spike of like 4 ohms. But it is for a moment of a second and that is it. After that I have nothing at all.

any advice would be great but CDI might be the next thing....like someplace closer to get parts or a motor swap lol

trying to get this running for my woman. I have my 06 crf450r I made supermoto but wanna ride the little 125 too!
Tommyramone55
 
Posts: 3
Joined: Thu Jan 11, 2018 9:00 pm

Re: New 125sm owner

Postby stephendacosta » Wed Jun 27, 2018 9:27 pm

I have a new CDI box in Ohio, if you need to purchase.
Stephen DaCosta
1995 Skorpion Sport; ten-MZ 125's;2009 BMW G650GS;1981 GS450 Suzuki Roadracer
stephendacosta
 
Posts: 125
Joined: Sat Nov 24, 2007 3:28 pm
Location: USA, Chagrin Falls, OH Near Cleveland


Return to 125 cc

Who is online

Users browsing this forum: No registered users and 8 guests