I have an 01' Wr426 that bogs when i give lots of throttle off idle. i just took the carb apart to replace the accelerater pump and clean it. i also turned all the screws to the original position after taking it apart. Would this be the pilot jet causing it to bog off idle? Also, when reving it up in neutral the head pipe gets bright orange after only about 20 second, before it would only do this idling with the choke on for about a minute. If i'm running to lean could this damage the engine on this model?