mike1984

how many of you guys have this problem w/ f4i's especially when it falls to the left side and/or upside. the crankcase breather spews oil into the airbox which can ruin your airfilter, and hyrdolock the motor.... i have an idea to fix it but i need some more input... feel free to drop your

https://www.stuntlife.com/forums/444...ather-mod.html

Wheeliest

don't leave it on its side running.. problem solved

MikeM

you missed the point

mike1984

yea yea i know... but last year i slipped off a seat stander and my bike literally kept rollin for at least an 1/8 mile.... maybe even a 1/4... i got to it in time to keep it from hydrolockin but had to get a new air filter and do alot of cleanin

Wheeliest

oh i just got another bike finaly... R6's love eating oil and rev limiter is my problem solver for any issues

Scott@STUNTERS

most all bikes will do this if left upsidedown for sometime..... well, every bike that I have seen anyways...

old man roger

does the f4i have the same style clean air system as the 636 ?

the 636 vents thru the exhaust ports so if you hook the crank case vent tube thru the clean air sytem it not only vents the crank case but it causes a vaccum in the crank case with out sucking it thru the combustion chamber ,thusly creating hp.......so if you can do the mod the same way the 636 is done you will solve your problem and gain hp, what more could you want from an almost free mod

mike1984

do you have a diagram of how it works on the 636?

nags

F4i doesn't have that...

old man roger

http://public.fotki.com/garymilcheck...ods/kleen_mod/

heres the 636 one but like i said i don't know if the f4i vents thru the exhaust port or not....

mike1984

but it does have the oil into the intake problem at times

Wheeliest

all bikes have a crank case vent into the air box ...

1ST GEAR

You can run the hose up to the frame by the steering neck and put a small breather filter on it, If it pukes any oil out when on the side it doesn't get into the motor( which my gixxer never has) Also when at 12 it puts the vent higher than the engine rather then horizontal with the engine-which will allow oil to come out. Works great some bikes will still spew a little oil out if overfilled and on the revlimiter. I had the gixxer overfilled a lot on accident and never lowered the level. Found out the hardway when on the revlimiter at 12 and oil spewed on me. Simple solution though, pick up tube and only fill it right over the site glass.

Hawco

link don't work roger

old man roger

it worked earlier just search pair mod ,or clean air...

f4ibry

my bike sees the ground a lot, and i havent had any problems with this, hit ground turn off.....but neat idea if u crash on the left while running a lot/.....???