Topic: re-reoute breather tube

[Heirborn]

On my '70 cb750, any problems with installing a longer breather tube back to the air filter intake to decrease the amount of fumes? I tried installing a K&N type filter to reduce, it helped but did not helpe enough.

Getting tired of the extra fumes, my wife is too.

I guess the only draw back is making the filter dirty quicker.   

[Lumbee]

...I don't think that breather tube matters much...long or short.  I don't think I even connect mine any more...

[ProTeal55]

If you are talking about the breather tube from the head, I just ran a longer hose to a little crankcase breather which I mounted to the side of the bike. Pics in my gallery...

[Gordon]

If you're getting excessive fumes from the valve cover breather, I'd say it's time for some new valve stem seals.  Anything else you do will just be a band-aid cure. 

[Lumbee]

...my bad, i thought you were talk'n about the the tube connected to the airbox.  however, on my chop i don't run the tub from the valve cover.  so far i havn't gotten any oil coming from it...

[Heirborn]

Might be right...really don't want to pull the motor but might have too. I will wait until I get my RD on the road so I can have something to ride then I can tear into it.

thanks for the info.