I have a komatsu pc120-6 avance, 1500hrs. Recently the machine has been losing power when after using it for about 20min. It will blow blue smoke for about 1min, and then be fine for another 10-15 min and same thing. I thought it may be a fuel issue, changed filters, no change. It's almost acting like its gelled up, but today it's 50 degrees, full of fuel, and new filter, running poorly after it warmed up with no power. I let it idle for 2 minutes the. It runs good again for 10. Any help would be appreciated thank you
2005 pc120-6 losing power when hot
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