85 big red bogs at high rpms

[jkosakowski]

MY 85 big red 250es runs fine till you get to higher rpms. checked air filter anf fuel flow PLEASE HELP.

[Thorpe]

Time for a carb rebuild.... Probably something plugging your main jet....

[Dirtcrasher]

We have lots of help here, but you have to provide as much info. as possible.

Altitude? Air filter? oiled" running a lid, stock engine carb and otherwise stock? exhaust?? What changed it? not run for a month, new gas and so on and so forth..........

[jkosakowski]

I just bought it about a month ago ran like that when i got it. it was sitting for a while only being started then turned of. it has stock carb exhaust just replaced by me it made no diffrence. thanks.

[Xpress]

Clean out the carb, sounds like a jet is clogged.

[rbaral233]

clean out the carb, rebuild it even its very simple to do. also fresh gas wouldn't hurt. nice clean fluids are always good for it especially if it sits without running alot. shelf life of gas, especially in a tank, is about 30 days. when you put fresh gas in put some stabil in with it to help make it last longer. that would be my best bet for a starting spot