Question about 2003 Suzuki RM 125

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2001 rm125 start help

I have an 2001 model rm 125 its around 45 degrees here im trying to get it to start its got gas and spark it sputter starts sometimes and i got a little rev out of it earlier help?

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Three things required for combustion: fuel, compression, and spark (at the right time). If your bike has sat for more than a few months, the carburetor is very likely plugged up with gasoline varnish. Take it completely apart and soak in carburetor cleaner, then blow out with compressed air - making sure the jets are clear (hold each one up to a light and look through it). Refill the tank with fresh gasoline and it should run.

Posted on Dec 09, 2009


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I have a suzuki RM125. I was riding and it just stalled out. Engine quit and would not start again. I changed the spark plug and cleaned the carb. Drained the gas and refilled. Checked the shutoff switch...

If your confident of a good spark, then your issue is fuel delivery. Try raising the slide needle by going down one notch on the needle. Jets and needle seats should be cleaned in a good quality carburettor cleaning solvent. Jets should be replaced if suspect. Check condition of reeds. Is the airbox and filter in good condition. Check for leaks around inlet manifold. Goodluck, cheers!

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Suzuki rm125 1983 engine

It will not necessarily hurt anything but it is not quite right. Be sure th shut off the gas when not riding the bike. Check and be sure the gas valve is shutting off the gas fully.

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How do i set my suzuki rm 125 carb to the right setting and does any 1 know what the setting should be please thanks graham

Turn the air screw and throttle screw all the way inward. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. The carb is now set back to factory specs assuming no one has changed out the main jet or played with the float level..

Please rate this solution. Thanks!

Jul 18, 2009 | 2003 Suzuki RM 125

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