K&N + Mainjet

[MrT]

Hi there,

i had to change my airfilter, then i bought a K&N Airfilter for my stock 250R (HA-4250). My airbox is in stock condition, do i have to change the mainjet or change the carb settings, or is that ok without any changing the carb settings.

Thanks

[zedicus00]

as long as you keep the lid on and are still using the snorkel you should be o.k. to just put it on and go... it will make it run a bit leaner though, just watch and listen to it extra carefull for a while.

[MrT]

Thanks for your help,

everything on my 250R is stock, so i use the lid and the snorkel. If the engine runs to lean, make it sense to put the jet needle a little bit higher?

[zedicus00]

probably be easier to just go one bigger main jet actually, maybe adjust the air screw a tad. or you could move the needle one clip.

[250r4life]

man, if youre all stock and running some good oil at like 32:1, you dont have a thing to worry about... that thing will run forever...

[MrT]

I hope so :D , thanks for the support.