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CVO Technical => Intake/Exhaust/ECM => Topic started by: rayson56 on January 04, 2021, 06:36:43 PM
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I had a rare day off today and since it's not exactly riding weather here in Washington I decided to tackle what appeared to be a fairly nominal task. After seeing several suggestions on this site and researching on the internet and U toob It was time to take my Ventilator A/C off again and do what I hope is another upgrade.
I started by removing the little breather hoses that route that nasty hot oil vapor from the breather bolts in the heads back into the throttle body, then marked and removed the backing plate so that I could drill a couple of 1/2" holes in it for re-routing to the out side of the A/C.
After drilling and cleaning up the holes I put a couple of rubber grommets in them for a clean and tight fit.
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Then ran some 1/4" vacuum line through to a T on the backside.
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T
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Then I ran a piece of 3/8" out and down under the bike. I chose not to use a filter or catch can at least for now, so we'll see if that changes after a few rides. The cost of this upgrade was under $10.
Also the video that I got most of my info from was this one;
https://www.youtube.com/watch?v=23XS_5f_t_o
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Here is a pick of the finished product;
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Another
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One more
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I really wasn't crazy about having a tube running down the side of my motor but until I come up with a more discrete
or cleaner way to route my line, this'll have to do.
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I agree don't like the look of a rubber hose running down the side of the engine but I also would think you'd need a catch can somewhere to keep oily residue from blowing back onto the bottom of the bike. I definitely don't want residue all over the bike underside & dripping on the garage floor like in the '70's.
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Braided stainless line for ascetics.
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One more
I ran two short lengths of plastic hose behind the backing plate into a T then forward and down under the engine.
See if it’s noticeable with a similar picture.
It’s been on for about 1000 miles no drips from the filter on the end.......yet.
8)
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Started out for a test ride after work today since the weather was cooperating and while waiting for a traffic light about a half mile from home some dumb b***h in a beater ran in to me from behind. !@#$%&
No major damage, rear fender and some other items will need to be replaced and I didn't go down but it sure ruined my week. So I didn't get the opportunity to check out the breather system. Guess that's the least of my worries at the moment.
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Glad you didn't go down and are not hurt. That really sucks, let me guess beater had no insurance.
I know when I got hit, the itch did not have insurance.
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Anyone using one of the kits that route the fittings and hoses upwards toward the tank so theoretically the oil solids will run back into the heads?
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Anyone using one of the kits that route the fittings and hoses upwards toward the tank so theoretically the oil solids will run back into the heads?
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I would be very interested in this information if you would be so kind as to pass it on to me. Getting it out of my Ventilator as I did was the big thing but now that I have everything bypassed, what I do with it, is the million dollar question.
Yeah Dave thanks for your kind words. I just got off the phone with her insurance co. (Travelers) and she apparently has coverage. Next is to go and get an estimate at my local dealer and get the ball rolling. Harley painted parts.....oh boy, hurry up and wait, but you know all about this, huh Dave?!
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Started out for a test ride after work today since the weather was cooperating and while waiting for a traffic light about a half mile from home some dumb b***h in a beater ran in to me from behind. !@#$%&
No major damage, rear fender and some other items will need to be replaced and I didn't go down but it sure ruined my week. So I didn't get the opportunity to check out the breather system. Guess that's the least of my worries at the moment.
Glad you are not hurt brother!
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I would be very interested in this information if you would be so kind as to pass it on to me. Getting it out of my Ventilator as I did was the big thing but now that I have everything bypassed, what I do with it, is the million dollar question.
It involves using Kuryakyn 9932 or 9930 breather fittings and modifying your existing air filter backing plate for clearance and blocking off unnecessary holes. I’ll keep looking for the procedure that was done on a Twin Cam. Another way I saw it done was drilling and tapping the breather bosses for 1/8 pipe thread hose fittings.
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Glad you are not hurt brother!
Thanks Michael
It involves using Kuryakyn 9932 or 9930 breather fittings and modifying your existing air filter backing plate for clearance and blocking off unnecessary holes. I’ll keep looking for the procedure that was done on a Twin Cam. Another way I saw it done was drilling and tapping the breather bosses for 1/8 pipe thread hose fittings.
Thank you, this site is amazing.
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this is exactly what I want to do with mine. 2020 SG
did you ever decide to change up the routing of the oil
are you happy with this modification?
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Still using my original design and it seems to work extremely well. I'm changing my backing plate to the K&N ventilator kit after a minor message by Paul at Fuel Moto and some gloss black powder coating though to facilitate my upcoming build that will include a 64mm throttle body.
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Thank you
So the drain line is rooted forward and down, and you're not noticing much if any oil? is there a filter on the end? My motor has so much oil, I know its new and it might take a bit to seal up but I dont want that going into my cylinders to bake onto the piston tops.
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Nope, down and back. Don't overfill your oil. Always check it after it's good and hot and give it a few minutes to cool/drain down and never fill all the way to the hot line or it will burp oil unnecessarily.
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Here is a pic.
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Thank-you.
I am definatly going to do this very soon.
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I ran mine up front to under the engine. Wanted to hide it a little bit better.
8)
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One more….
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Did you put a filter or something on the end or just let it free, if you do capture the oil, about how much h comes out.
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I ran mine up front to under the engine. Wanted to hide it a little bit better.
8)
I agree Mike, that does look a little cleaner.
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Did you put a filter or something on the end or just let it free, if you do capture the oil, about how much h comes out.
I had an old filter that fit the tubing and I shoot a little carb cleaner on it every 5000 miles when I have it on the lift to change oils. Never had any oil drips on the floor.
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My green bike has a little more complicated vent system that goes into a catch can and after going through a breather screen, out the back of the bike.
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Hi, that looks great thanks for the information and the picture.