Originally Posted by bad tappets

A lot a great info here - thanks to all who contributed.

Question: When drilling and tapping a fitting in an SE backplate, there is no direct connection from the breather bolt to the tapped fitting - correct?

See poorly drawn sketch below.

Originally Posted by GibsonSG

103HO AC's make this a breeze:

This is how I vented mine also, seems to work just fine for only a few bucks in parts.

Originally Posted by DK Custom

That is correct.

Originally Posted by jay.weber

After reading a lot of posts on doing a breather set up,I wanted something that was as hidden as possible and required the least amount of drilling, tapping and everything else. I wanted something that could easily be removed if needed. I wanted to utilize the oem set up so i took my stage one plate to the hardware store and purchased fuel hose (used in

the fuel tanks of two stroke lawn tools) that snuggly fit (had to be twisted and lubricated with water to get it in) into the breather holes. I put a hose in each hole as far as I could get it in which turned out to be just under an inch. I connected both hoses with a t connector. I then purchased black shrink wrap just to mask the color of the tube (yellow) and provide extra heat protection. I then drilled a hole just big enough to get the hose through, in the plate next to the lower stand off. I then routed the hose under the electric box (forget part name), down to the front cylinder and put the hose in a slot of fins horizontaly. Ran the tube over the oil filer mount and then down and out the bottom of the frame. There is a small hole in the frame that the hose fit in perfectly and keeping it in place. You really have to look for the hose to see it on the engine. I installed the filter and test drove about 25 miles. I pulled the filter off and all hoses were still intact. I also looked at the end of the tube under the frame and there was oil residue. I also put zip ties on the hose around the upper standoffs just in case the pressure (very little by the way) pushed the hoses out to keep them from being sucked into the opening.

Originally Posted by jumpmasterjay

Where'd ya get that little T? I'm probably going to do the same but run two seperate lines out of the backplate (two holes) and put the T outside (but behind) the AC.

Thanks!

Originally Posted by UltraNutZ

here's the rest of the information that goes with the pics above from a previous post of mine for you guys that want to do this. it really is easy to do.

SE Ventilator cause I like the way it looks and I already have it installed. With the K&N filter, flows 287CFM which is fine for the heads I have which flow 252CFM
(2) Dorman 785-410 1/8" MNPT - 1/4" hose fitting (advanced auto)
(10') 1/4" vacuum line (advanced auto) yep plenty left over.
(1) 1/4" vacuum hose "T" (advanced auto)
(1) 1/4" to 3/8" vacuum hose adapter (advanced auto)
(1) Spectre 3991 Breather Filter (advanced auto) http://shop.advanceautoparts.com/p/s...m=spectre+3991

total - $15.49

took the backplate and drilled 25/64" holes in it
Then I used a tap, M10x1.25 to thread the holes
Then I cleaned the breather holes and oil drain holes thoroughly with brake cleaner
Then I siliconed the oil drain holes that go back into air intake (yep that was the only color hi-temp/oil resistant silicone I had on hand.
Then I screwed in the fittings, attached hoses, attached clamps, inserted "T" in proper location, ran the hose inside the front pushrod tubes, and located the filter just behind my oil cooler and fastened in place with a zip tie. The "wetness" you see in that last pic is from my cam change a couple of days prior to this mod.
all said and done, $16 in parts and about 45 minutes of my time that will prolong the life of my motor.