Question about 2003 Suzuki RM 125

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I have lot's of spark on my 83 rm 125. I fired it up after sitting for a long time and it kicked right over. I let it run for a few minutes and then shut it off. now it won't fire up again.! Lot's of spark though. but when I pull the plug out, it's covered in fuel. It's like it just keep's flooding.

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  • Suzuki Master
  • 2,050 Answers

Could be low compression (poor piston rings) or plugged air filter.
If it looks like oil on the plug, not fuel, you could have a crank seal issue, as the right side one will **** in transmission oil if it leaks.

Posted on Mar 25, 2011

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1997 rm 125 won't start why should I do?


For your dirt bike to run you need 3 things:

1. Fuel (gas/air)
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Start trouble shooting through these. Make sure your gas is turned on, and that it flows through the carb; if you tilt the bike does fuel run through the overflow tube in the carb? Make sure you have good spark; take out the spark plug from the cylinder, still connected to the ignition wire touch the threaded end to somewhere metal on the engine and turn the bike over. You should see a spark. Finally, do you have good compression, how hard is it to kick over etc.

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I have an 83 rm 125 and know nothing about bikes!! I went to fire it up after it sitting for about 8 months and it started right up. Problem is when I went to put it in first gear it cuts out...like the...


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I have an 83 rm 125 it wont start but i have sparks gas and every thing is their but it wont start what shoud i do


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Sounds like a bad crank bearing. Pull the spark plug and kick it over by hand real slow if it hangs up you have a bad bearing. It could be the more but I would check hear first and you will find the rest if any.

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