Vintage and Classic Hondas

Oil tank breather

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Kokal

Oil tank breather

Hello, I am new to motorcycles in general. I just picked up an 82 CB750 Nighthawk. Someone at some point put a nice performance exhaust on it and jetted the carbs on it but it wasn’t running right with an air filter so I got the bike with the factory air box and no filter. The bike seemed to run ok but not too great so I added these filters. Bike seems to be loving the filter however I found these two lines one on the oil tank right by the dipstick and one on the other side. They meet at a tee that used to connect to the factory air box. I was wondering if I am able to shorten these two lines up now that there is no factory air box for the tee. I also think it will look a little better in the open space if those lines are not running up.

TOOLS1

Re: Oil tank breather

Administrator

Yes, you can change them. I have put little pod vent filters on them before on custom bikes.
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Life is not about the number of breaths, you take, but the moments that take your breath away.
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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
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Kokal

Re: Oil tank breather

Awesome thank you. I just want to cut them down so they aren’t right next to the filters.

TOOLS1

Re: Oil tank breather

Administrator

You really want a filter on those lines, the crankcase breaths in and out and will suck dirt and water in.
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Kokal

Re: Oil tank breather

I was going to cut them down and keep them going into the tee. I was going to get a little filter for the end of the tee. Figure it will keep things cheaper. This is my first bike so Dressing it up with dual breather filters or fancy stuff isn’t what I am going for. My next issue is trouble shooting my gas gauge it reads half a tank all the time.