I have a Kyosho Inferno 7.5 sport When its up to running temp it stalls and hard to start again.Can anyone help??GX211 motor!!

Give more info please. What do you mean when it get it's temp? How hard to start again? Is the flywheel spinning easier than when it's cold?

Find out why it's stalling. For hard starting, the first thing to check is the carb. Some of these carbs. developed bad o-rings that tend to leak and let air in (and fuel out!). If it's going lean as the engine is heating up and stalls, the fuel will have a hard time getting to the carb until the engine is cooled down again. Kyosho sells the repair kit that has the o-rings for the main needle and low speed adjustment.
Also, bad fuel lines with even just a pinhole will cause these problems.