Monster Pipe On yamaha Raptor 660 Questions?

[BigBlockBlaster]

Anyone running one of these pipes on there raptor?...If so How did it run after the change?..also anyone know jet sizes for this pipe?..Im working on one for a guy and its been getting very hot every since the pipe change and it has no pep...when i pulled the carbs apart it seems to have the wrong jets..emailed the company for correct jet sizes and have gotten no response yet..thanks guys

[quadrider2112]

prolly so lean its bout to seize. Buy a jet kit and just keep makin it richer on the main till it bogs from it then go back one size and you prolly need to change needle position too if it has an adjustable needle

[BigBlockBlaster]

yeah i know its lean...i just dont have any idea on jet sizes to start with?