Yamaha aerox 70, need help :(

could anybody please tell me if it will be okay to ride my 2002 yamaha aerox 70 without an air filter, it has 21 mil carb and the person i bought it off said it runs better without the airfilter, any help would be much appreciated, thanks for your time.

 

no it is not ok to run it without an airfilter ...it will run lean and cause a seizure ...the guy does not no how to set a bike up so he left it ..also any crap goes in thats your engine screwed up

 

okay thanks for that mate, will it be okay with the standard air filter on it? thanks

 

yes but will need rejetting

 

im not sure how to do that lol

 

I doubt if the standard air filter will fit on a 21mm. To be honest a 21mm carb is too big for a mildly tuned 70, your much better off with a 17.5 or a 19. A mildly tuned 70 does not suck in much more air than a 50 and when it's sucking it in through a 21mm carb with no filter the air is not moving quickly enough to atomise the fuel properly.
Try taking a lungful of air with your mouth wide open and you'll get the message.

 

okay thanks mate