u/Significant-Echo3840

it's an 08 with 11k miles. i bought it over two months ago and rode it for the first time yesterday. i think the last time it was on the road was 2+ years ago so it's safe to say it's got old gas in it. when i first got it i was riding it around my yard and it ran great but since then it's started to bog down. it had a loud aftermarket exhaust when i got it and ive put the stock exhaust back on and im going to set the ejk tuner back to stock settings today. it seems to be ok when it's cold but bogs once it's warmed up

does it just need a fresh tank of gas and to be ridden more? or should i start looking at replacing the fuel pump?