as per my pm to crf3: (figured some others might find this usefull)
put the ram air tube back on, if you can.
if not, try taking the vent filter off, and try covering some of the airbox opening with duct tape (make the opening smaller, basically)
getting ram air equipped bikes to run right with the ram air removed can be a headache. i'd try the duct tape thing first. it doesn't really limit the AMOUNT of air that the motor gets, but it SPEEDS UP the air that goes into the motor, which is what your problemn is. when you make any opening bigger, but still pull the same volume of air thru at any given rpm, the air moves slower than it would thru a smaller opening.
it's like sticking your finger over the end of a garden hose to increase the pressure and velocity of the water. same basic principle.
put the ram air tube back on, if you can.
if not, try taking the vent filter off, and try covering some of the airbox opening with duct tape (make the opening smaller, basically)
getting ram air equipped bikes to run right with the ram air removed can be a headache. i'd try the duct tape thing first. it doesn't really limit the AMOUNT of air that the motor gets, but it SPEEDS UP the air that goes into the motor, which is what your problemn is. when you make any opening bigger, but still pull the same volume of air thru at any given rpm, the air moves slower than it would thru a smaller opening.
it's like sticking your finger over the end of a garden hose to increase the pressure and velocity of the water. same basic principle.
