Exhaust Leak

My aerox had been dieing at WOT and spr racing said it was a vaccumm fuel line problem, doesnt suck enough fuel through. I noticed my exhaust was leaking from the gasket on the silencer, fixed that with some sealant and the bike doesnt die as much, is it the exhaust not giving the bike enough of a vaccum?

 

what exhaust do you have ? if aftermarket did you rejet for it ?

 

could also be running too rich. I had the same issue with a ZIP 70SP...anything over 3/4 throttle and it would bog down. Backed off the mixture screw and sorted in an instant

 

Ill give that a go tommorow and ill see what happens.

 

Also check the float in your carb. You could be running out of fuel at WOT if it's not adjusted properly.