92 rm 125 need some help

K

kingmega

Member

Aug 18, 2012

3

0

• Aug 18, 2012

• #1

I just picked up a decent 92 RM125 the thing will not start i have cleaned the carb, adjusted everything to factory spec's seems to be dumping way to much gas into the jug plug come's out wet everytime i do have spark altough it seem alittle week to me but i could be wrong and while kicking it over it will kick back hard i ran a compresson test and that was good i'm stumped

 

J

_JOE_

~SPONSOR~

May 10, 2007

4,697

3

• Aug 19, 2012

• #2

Pull the flywheel and make sure the key isn't broken. Do a visual inspection of the stator plate behind it. If you see any damage it's probably toast. If you don't have a manual yet get one so you can actually test the ignition components. I had a 92 rm125 for about 5 years, it went through 2 stators and a cdi in that time. One of the times it had a weak, yellow/orange spark but wouldn't run. Would fire every once in a great while but die right out.

 

R

RmTony

Member

Jul 11, 2012

55

0

• Aug 19, 2012

• #3

Bro i had the same problem when i got my bike, i suggest checking the float level and getting a new plug (NGK), i had to kick my bike about 100 time before it started no joke, and check if the exhaust is restricted.

 

K

kingmega

Member

Aug 18, 2012

3

0

• Aug 19, 2012

• Thread starter
• #4

well i'm waiting on a carb rebuild kit i did check the fly wheel cdi and key they all look fine the spark is nice and blue i have got two new plug's one stock and one hotter i took the pipe off after i got it and i dumped out bout a coffee cup full of gas and oil out of the pipe. pipe is free and clear been trying to start it with the silencer off i have had no luck getting this thing to run it will pop when it kick's back like it's trying to do something i'll look at the float and get back

 

R

RmTony

Member

Jul 11, 2012

55

0

• Aug 19, 2012

• #5

you could try to keep kicking it, also try removing the plug and put a little gas and I MEAN A LITTLE BIT if gas in the head and kick it and see what it does if it starts it will smoke like there's a pow wow going on.

 

BSWIFT

Sponsoring Member

N. Texas SP

LIFETIME SPONSOR

Nov 25, 1999

7,926

43

• Aug 20, 2012

• #6

Sounds like the reeds are shot but the ignition is still suspect.

 

K

kingmega

Member

Aug 18, 2012

3

0

• Aug 20, 2012

• Thread starter
• #7

the reed's look fine but not sure how to tell if there bad the ignition is something to think about because i have been though everything but like i said the spark is nice and blue maybe there's just not enough spark to fire it i have no idea how to test the ignition system the manual tell's me nothing i'm bout ready to stick it in the back of the garage and call it one

 

A

arnego2

Member

Mar 8, 2008

271

1

• Aug 21, 2012

• #8

You test the ignition by measuring the OHM value, compare that to the numbers in th manual and you know which part is faulty, or at least you can take ignition of the list.

 

D

demise584

Member

Jan 19, 2013

7

0

• Jan 19, 2013

• #9

Any chance that you ever figured out the prob? I literally have the exact same issue