Mac 45 leaning out question

Brandon White · Sep 28, 2014

Been running my Mac the last few races and it runs great. After the last heat it died so I brought it back to look an once I started it, it was lean sounding which wasn't ever before. I got the motor used in good shape..I'm thinking bearing going out?

anthony_marquart · Sep 29, 2014

Probably.. if you think it might be the bearings,.. change them ASAP,.. seriously,.. I've learned this lesson the hard way

Andy Brown · Sep 29, 2014

Keeping good bearings is important, but that change in mixture seems to instantaneous to be bearings. Check for trash in the needle valve, hole in fuel line, ect.

Brandon White · Sep 30, 2014

Thanks guys I'll check the needle out and look into getting new bearings too.

Mac 45 leaning out question

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Mac 45 leaning out question

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