nope. did vented dipstick instead. easier and engine revs quicker. Fuel Moto said if you do the vented dipstick, you generally dont have to do the breather bypass.

 

so with all that added stuff, and that amount after only 200 miles..how in the world did my 17 RK with 40,000 miles and my 20 RGS with 30K (and millions of others I might add) manage to stay running as good as new for so long without all that jazz? it's a miracle!!!!!

 

I would venture to say that you are getting so much in there because it looks like your hoses are both below the vented devices, the hoses should be ran up and then back down and I’ll bet most of that junk never gets pushed to the end of the hose.

 

To get that much out after 200 miles indicates to me that something else is going on. Either your oil is way over filled and you're getting excessive blow-by or something else is going on.. that is not normal

 

Must be! Can we get a hallelujah!!!!? Haha. Seriously though, I never complained that my bike wasn't running well. I just decided to vent this crap out instead of keeping it in the bike. Seeing it, however, makes me want to remove these items and not think about it. Out of sight, out of mind.

 

yup, amazing how high oil temps no longer are a problem when people stop using oil temp gauges, etc, etc. ..I swear Harley owners are the most fickle bunch I have ever seen, heard or known and it's not even close fuss less and ride more I always say

 

Haha, we sure are! Whenever I get a new bike, I'm going to keep it stock like you!

 

You may be on to something there, at least with the Trask set up. I do have the hose from the CheckM8 going up, but probably not high enough.

Definitely not over-filled. I do my own oil changes and keep it on the lower side of the 4 to 4.5 quart range. I have the T-man breathers in the heads that flow more volume than the stock breathers, but there's more evidence of the fluid originating from the Trask CheckM8. Will try running the hose higher per Quik's suggestion.

 

I’m running a Trask CheckM8, but still getting a little blow-by inside my air cleaner cover on my FM 128”. It’s very noticeable since I have the clear FM Typhoon cover. I’ve been wanting to do the breather bypass for a long time, and finally spent the money to get the right hose.

I would be doing this mod with stock Harley breather bolts. I didn’t want to drill/tap/plug anything on my S&S Stealth backplate.

Because of how I wanted to do it, I wanted specific hose - it had to be black, supple, heat resistant, and chemical resistant.

After careful measurement, I determined that 3/16” inside diameter tubing would be ideal. But I wanted a narrow outside diameter too.

Enter McMaster-Carr.

I ordered Viton Rubber tubing. It’s soft, heat resistant to 400°+, and it’s oil resistant. 3/16” ID / 5/16” OD. With shipping, it was about $70 for 10’ and I will be doing this on my 2010 TC as well.

Additionally, I picked up brass 1/4” barbed Y fittings.

The Y fitting is tucked neatly behind the bottom of the backplate, and the main drain tube is fished behind the front lifter block cover, down alongside the engine case, and is zip tied with the wiring bundle along the inside of the bottom frame rail.

I’m venting directly to atmosphere, no breather or catch can. My tubing has a draft cut on the end and it exits directly next to the frame by the fuel tank vent on touring models.

Pardon my filthy-*** bike…it’s been a rainy spring/summer in CO.

Materials

 

Jumping out at me was this quote from that article, " [...] - is a gauntlet thrown in the face of those naysayers who blather on about never buying the first year of anything. They say it’s risky business until the bugs are worked out. Harley is betting the bugs have been exterminated in advance. It’s a safe bet!"

I guess in the alleged/reported "millions of miles" of testing that were supposedly done in advance of being released to the public never did any M8 sump or transfer oil from the transmission to the primary case ... never! Only after going to market did the MoCo change the oil pump how many times now? TSB afterthought for the little rubber hose vent on the inner primary was unnecessary for those "millions" of testing miles??? OK rant mode off as I have two M8s and neither has sumped (yet?) and the primary case vent tube was installed under warranty; my fluids (well my bike's fluids anyway) seem to stay where they should. IOW, I'm happy with the M8s I have but if the MoCo told me that the sun rises in the east - I'd have to get up early to check it myself.

Back on point, because the M8s still have oil venting plumbed into the intake, I still (as with TCs) re-routed that plumbing to the atmosphere - notwithstanding the M8's vent to transmission affair and little catch can-like filters built in ... all because the EPA forbids venting to the atmosphere.