Question about 2003 Suzuki RM 125
For checking the ohms you will need the repair manual. Should be there the values and the "how to".
First you should ckeck the on/off button to see if him is the fault.
If you don't know that you have spark or not you could check that easily. If the bike has starter is better. If not, you will need a second person to kick the bike and another one to watch the sparkplugs. The checking method is next: remove a spark plug and fix it on the engine everywhere you want but be sure that the sparkplug ( the wrench zone ) is on metal surface but the electrode should be in the air ( not touching the engine ). In this time press the starter button if the bike has starter or kick the bike. If in this time you see no spark on the elctrode gap that means the problem is the spark, coil, the ignition coil itself or the wires that power the ignition coil. How to check that? By purchasing the repair manual for you bike.
Posted on Oct 20, 2013
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Posted on Jan 02, 2017
SOURCE: Lost spark, Need resistance readings for stater,exciter coil to see if it went bad, the bike would run fine then loose power, eventually no spark at all? Does this usaully go out on these bikes?
Check your battery first. It sounds as if you have a bad rectifier or regulator. The battery voltage should be about 12 volts when not charging and about 13.3 to 14.5 volts when charging. If the battery isn't charging you will only be able to run on the charge in the battery (which won't last long).
Posted on Mar 13, 2012
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