Be replaced without pulling the motor?

i am sure this has been hashed to death, but i just signed up and here goes: bought a used bike recently. runs strong when hot, but takes a long time to get there. gas is fresh, no water. bike looks clean overall although the over rev is flashing (because speedo doesn't work?). i have an...

2011 POLARIS SPORTSMAN 500 H.O. 4X4 On Ebay https://www.ebay.com/itm/294609796643?

Hi, lately I've been going to some online school thing, so I have a lot of time on my hands. I've been buying cheap motorized vehicles and tools (mainly Atvs) fixing them up and selling them for profit. I lot of the atvs I've been selling are older and haven't been licensed in forever and I...

This just started happening all of a sudden but when I give it gas it will die. Starts and idles fine. If I shoot carb cleaner in air intake it will keep running. Things I have tried. Loosen gas cap New carb Adjusted valves Thanks for the help