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kubamtx

Yz 426 runing to rich ???

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Hi

My bike always started better with hot-start when hot/warm (not after crash...). Today I saw few more things. End of my exhaust is black after few rides and my bike is killing the plugs, not during a ride but after, when I'm going to start it next day, usually changing plug helps.

Please tell me if these are common problems when bike is running to rich?

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I'll check my jetting tomorrow now I've got night in Poland;-)

The previous owner said that it has factory jetting.

I ride 200m over see level and humidity 75-80% and temperature over 24 degrees Celcius.

I'll check the jetting and we'll see.

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I've checked my jetting today and I think I found the problem.

MJ: 162

PJ: 42

needle: 4

Which is ok for 700 ft, 80 F.

But mu fuel screw was 1 3/4 turn out and manual says that it should be 1 1/4 turn out, is this a problem?

Do I found the problem or fuel screw is not responsible for my problems?

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