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Mechanics Corner Looking for answers to mechanical questions? Just can't get it to run right? Got a tip for increasing HP? This is your forum!

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Old 04-27-2004, 10:39 AM   #1 (permalink)
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Join Date: Apr 2004
Posts: 7
Default 97 Rm 125 not running good, at all

It use to just foul out after 2 hours of riding it I'd just have to replace the sparkplug with a new one, Im out of new spark plugs, After clean the spark plug the bike only runs for a few seconds. I just think the carb needs tuning. Or what else could it be ?

I don't really have any testing tools but I took the head off and cleaned the exhaust valve and checked the pistol ring which wasn't over worn according to the service manual.