Hello, new to this so bare with me please and thank you.

bought an 85 suzuki 250 quadrunner, was runnin great untill it seized, however, had the engine work done, put the engine back in and hooked everything up, and was runnin smooth again, however now it will start fine, and run for 5 or ten mins then starts to stuggle and then stalls out or chokes its self out. let it cool down, starts fine even if its warm but as soon as you go to apply throttle, it starts to bogg out and tried putting it in gear and she just goes 5 feet and stalls???????? the air fuel mix screw works when cold but when it starts acting up, i can turn it in either direction and get no change????????

can anyone out there point me in the right direction before i go messing it all up or go changing expensive parts that I dont need to please and thank you?

 

go through your fuel system top to bottom ... lt sounds like there might be some junk in it blocking it at some point.

 

Thank you, i will go through it and report back...