XBR removal of air filter

[guest1703]

Hi all
Do I need to do any adjustments to the needles or something like like, if I decide to remove my air filter box and replace with direct intakes?

Best

[guest1744]

the air box is nearly as vital as the exhaust for power delivery - taking it off will sound fast with all the intake noise- and almost certainly wreck the power curve

you may get some more top end- and it will feel fast as you roll through the massive hole created in the middle

Don't do it!

[guest564]

I only know of one person that tried this and it didn't run at all well, an aftermarket carb is the only real way to go without an airbox.

[Moto63]

Hi all
Funny thing this fuel air mixture malarkey , I ran my xbr cafe racer in "dry build " form all last year with the  STANDARD carb and a K and N pod filter and a stainless 2 into1 zorst system and ran without a beat missed. It would pull 90/100 with the only downside at the time being the slipping clutch which did make for some " entertaining" overtakes. The bike has since been completely stripped down, the engine included and been rebuilt to a higher state of tune, complete with brand new mikuni carb and the same K and N filter as before I have only had chance to do a couple of shortish runs as it now, but again so far it appears to run/ pull brilliantly.  Much better than a standard xbr.   Regards moto63

[Moto63]

Ps. At the time I was running a "predator" 2 into1 zorst, it now has a different, much better 2into1 on. Cheers moto63