My brother, Are you using super unleaded gas?, New sparky plug? air filter clean? I had a bad running bike and my air filter was falling apart like cotton candy, Ha! No toil airfilters to the rescue! Is your fuel tank, carb an filters clean?. Fresh fuel? How about your alternator? is it covered in dirt and crust? Lots of factors involved but with a shop manual you will suceed! I guarentee it!So it runs good cold and after running a while and a decent bit of high rpm i give it throttle and it bogs anyone know what this could be?