ruger311

whats a HG issue?

samseed101

Head gasket.

grabbem88

that's why mine gave me problems! had a blown hg last year..

Twisted

That system you are talking about is typical to the old kawasakis. I had it on my 88 Ninja 750R, and have seen it on dozens of Kawi's...but can't remember right now what they called it. It is part of the emissions system, and just lets fresh air into the exhaust ports of the heads between strokes. If you don't have this system properly hooked up, you should block it off completely. Remove the two covers on each side of the head, cut out some cardboard pieces (or other material) that will fit into the recesses, install them and then put the covers back on. There are some reed valves in there, and I believe I used to leave them in, and put the cardboard right on top of them--can't remember though. If you need more help, let me know, and I'll go look at my manuals to remind myself.

Vristang, I'll get at you later, as I have some things I want to discuss in detail regarding the topic.

88blackgt

hey samseed did you lose any vacuum though routing it into the air as opposed to back into the motor? the guys i know that run it say the lose vacuum if they run a filter, so some run it back into the system. these are supras and DSMs so doesnt quite apply the same but ya

Twisted

Oh, by the way, Alex, to the best of my memory, that fresh air system is not in any way part of the PCV system--at least it wasn't on my bike; although the smog system on my bike had been removed long ago so that the only hose in that area was the pcv hose. Oh yeah...I just remembered...it's called an "Air Suction System." From the factory, there is some kind of canister that either pumps or sucks air into those valves for some emissions purpose. Yeah, the bike will sound like sh*t if you don't either have it hooked up properly, or block it off completely. Good luck.

grabbem88

ok this is my question...i have two breathers plus pcv valve...if i put a pcv in the driver side and run it to my current pcv system with a T or double port....is this still considered a vac leak?

Twisted

So Vristang, I have some questions for you. I read a thread that you had going on another site, regarding pcv systems. I remember you mentioning that your separator bowl used to fill up like every 200 miles, before adding the second pcv. My question is, does this imply that your motor was on its deathbed...the fact that that much oil was being sucked into the intake? For reference, I've put 70 miles on mine, and it only has like a half a teaspoon in it. At any rate, does this always indicate that there is excessive blowby past the rings, or is there some other possible explanation? How long has it been since your discovery of your pcv issues, and has your motor continued to run well in spite of them?

My last question is, I've noticed that my car has been idling kind of funny (funnier than usual, anyway) since attaching the system. It seems to idle like 50 rpms lower, was surging like 50-100 rpms. It does seem to be getting better with time though. Why do you think my idle quality changed since adding the system. Also, I'm thinking about cutting the tip of the filter off. What are your thoughts on this? Sorry about all the questions.

One more request, when you get a chance, can you post that picture of your pcv setup again?

Twisted

I don't think so...at least not according to the hours of reading I've done on the subject lately--including pieces written by Vristang. I don't know what the effect would be on idle quality though, as it seems like it would change the flow rate of the pcv system.

grabbem88

sbf fords are known for oil puddling in the rear...jay allen explained this to me,but since this forums bans the site he visits....soryy for no link....