85 200m stalls when going full out..help please

Runs great as long as I'm not trying to run full out or even close...
It stalls ..let it sit a couple of minutes starts right up?
plug and gas have been replaced.. I'm thinking carb but what specifically?
any help/suggestions greatly apprciated

[Mobular]

Is the float set too low??

[ATC350X 85]

I would clean out the carb and then go from there also clean out the petcock while your at it.

[PowerTrike]

...friends gotta 86 250 bigred, does the same thing :?

I have an '85 200M and it will run WFO all day long if tried to. I have run it wide open a lot during hunting trips to Lake Abitibi in northern Ontario.
Check to see if you have sufficient fuel flow from tank to carb. If you pull off the fuel line and open the petcock on the tank, you should see a steady stream of gas. If it just dribbles out, something is clogged in the petcock. Also check the fuel hose to make sure it is not clogged or kinked. If your machine will run wide open for even a short time then it is unlikely to be a carb problem other than a very low float level, but I think that would create other driveability problems as well. Verify sufficient fuel flow first. Good Luck, GlennMc.

[Tecate performance]

try a different gas cap if the petcock and fuel line are good.