So I usually run my carb without an air filter for better performance but today i wanted to go on a trail which is very sandy and I didn't want any sand going into the motor so i put the filter back on and tried to rid it like normal but the motor just bogs down at around 10mph and after a few second it'll stop running so i took of the air filter to test it again and it ran like normal so i think the air filter is severely restricting airflow to the motor, so what should I do to stop the bike from bogging down or how do I not let sand get in to the motor without using the stock air filter? OR should i just not use a filter at all.