2004 Suzuki RM-Z 250 Logo
Posted on Apr 28, 2009
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My 04 rmz250 is overheating. It started smoking 3 different times when i took it out the other day. Id let it cool down for a few, continue riding and about 20 minutes later it would start smoking again. Any suggestions?

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tombones

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  • Posted on Apr 28, 2009
tombones
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Several things here. Do an oil change, 10w40 motor oil. Run premium gas and install a new NGK spark plug one heat range colder than stock. It sounds like you have an air leak causing a lean fuel mix. Check the carb mount bolts and the intake manifold bolts for tightness. Also set the valve clearances with a cold engine > .002 intake and .003 exhaust. Check for any cylinder head leaks. This would show up as oil on the cooling fins at the base of the cylinder head. Tighten the head bolts if needed.

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  • Posted on Jun 14, 2010
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I have an 04 rmz250 same thing happend 1 easy thing u need is coolent nothing major bikes fine look at the coolent every couple rides to

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