Is it safe to run my kfx450 without the airbox lid?

[Mike Polny]

I have a 2008 kfx450 with a pro circuit T4 full system and a dyno jet power commander, as i was cleaning it the other day i decided to take my airbox lid off and try it out, i took it for a spin and it sounds so much better and i noticed that it had alot more power, is it safe to run it without the lid? also would i have to change my map on the power commander ?

[kawi_34]

change your map

[Mike Polny]

u think i really need to change the map with just the airbox lid off ?

[kawie450r]

Check your spark plug. It's prolly running lean with out the lid.

[Mike Polny]

yea ill check em, check my newest post, can u help me with that ?

[Mike Polny]

the one about my kfx450 being dead