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Dreaded jetting Question

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I know, I know! I hate the jetting questions also but here goes.

My son has an 02 XR 80. The problem I have is starting when cold. I have to put it on choke and give it gas to get it to start.I have to keep it reved up for about a minute and then it will run and start all day long while it is warm. If I dont give it gas it wil take about 20 kicks and then will idle for about 10 seconds then die. I hate giving it gas because I know that the rings and piston are not lubed really well yet and I am doing damage(very minor, but still)

Which jet would you say I need to change????

Keep in mind. when it is warm it starts just fine.

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Assuming the carb is clean since it runs ok when warm, try opening the fuel screw a bit.

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