Air filter problems.

[Tomahawk]

My 3tj has been playing up for sometime now. i took the air filter out which was filthy and the bike ran absolutly fine. I brought a new standard filter from wemoto and as soon as i rode it again i had some major problems with flat spots and having to rev past 5000 revs for it to pull away with out stalling. Ive cleaned the carbs 3 or 4 times now trying to find the problem, thought the air filter had solved it but no. I really dont know where to go from here haha. If any one could help it would be very appriciated.
Cheers Tom

[Taggyd]

did you check that you have the correct jets etc. as if it ran better without it may have the bigger than needed with a filter?

[Evilchicken0]

Agreed - have you tried running the engine with the air filter in and fuel tank off.
If that works then something is obstructing the airbox.

[roland jones]

There should be two short black hoses on a swivelling T piece fixed between each pair of carbs. Make sure they are not tucked up under the air box (i.e. pointing forwards toward the cylinder head) - if so rotate them through 90 degrees so they point away from the carbs (in the direction of the battery) This will ensure you get a clean supply of air into the float chambers which will aid low speed fuelling and may solve your problem.