I am wondering what airbox holes will do for my 250x with a K&N filter.There are 2 holes drilled in the top of the box with tape over them.What will happen when I take off the tape.Also where is the best place to drill more,does it give more power?I ride on a dusty MX course and will holes require more frequent baths for my filter?One more question,my shocks are very plush and olmost completly bottom-out on the jumps, do I neede new ones?Thanks

 

if the preload is cranked..looks like you need new shocks.

i have a set for sale..off a 00 they will fit...mint..never bottomed, 100 bucks..fronts only

 

What atv are they from and will they work for MX racing?Thanks!

 

ABout the holes in the air box it alows more are to get to the motor and if setup right can make more power . If you buy an outerwears for your air filter you can remove the airbox completly and the outerwears will protect from dust and water if you do that then buy a k+n jet kit for about $50 you will get some serious power gains an more top end speed .

 

The holes & K&N filter in your airbox will definitly increase performance. I have 3 2" holes in the top of mine. As far as the shocks I threw my old ones away (blown anyways) and bought some good used R shocks and welded a new top bracket w/'88 R a-arms (86-87 won't work) and haven't bottomed out yet on some serious jumps.

 

Any a-arms from a 250R will work on an X. I have the a-arms with the larger bushings and a friend of mine has the one with the smaller(250X style) bushings.
Both work great!