1979 gl1000 crank case breather hose diagram?


Information and questions on GL1000 Goldwings (1975-1979)
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Naked Wing rider
Posts: 14
Joined: Tue Sep 18, 2018 6:30 pm
Location: Calhoun Ga
Motorcycle: 1979 honda goldwing gl1000

1979 gl1000 crank case breather hose diagram?

Post by Naked Wing rider » Tue Sep 18, 2018 6:45 pm



Hi I'm caleb. New to the forum and naked goldwings.

I just got my goldwing last week. It runs but needs a little tlc.

First concern is the crank case breather hose. I rode the bike a hour and a half to my house with out issue.

But now it has some trouble idling. It will idle sometimes but others I have to hold on the gas or it dies.

And I noticed the crankcase breather hose is not connected to anything. Just goes down.

Isn't it supposed to be connected to the air box?There are two nipples on the air filter. Which one goes to the crank breather and I guess the other one is just a hose that is supposed to just go down the bike.

Any help would be very appreciated. Thanks in advance.



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DenverWinger
Posts: 462
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Location: Denver, CO
Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
1977 GL-1000 (2002-2006) sold

Re: 1979 gl1000 crank case breather hose diagram?

Post by DenverWinger » Wed Sep 19, 2018 8:38 am

Hi Caleb, and Welcome to the forum!

The 1100 has the crankcase breather routed to the airbox on the same side as the breather, the other side of the airbox is just a drain tube to the road for any oil that might get into the airbox from the breather. Been a while since I sold the 1000, but if I recall it was set up the same way.

For the idling issues I'd get a couple cans of "SeaFoam" and put a double-dose in your fuel. If the bike has been sitting a while without running likely the idle jets (along with the rest of the carburetor) is a little gummed up. After 3-4 tanks of fuel it will likely clean up and run right. Turning up the idle set enough to keep it running and just letting it sit there idling for an extended period with Seafoam in the fuel may be additional help (don't leave the bike idling unattended). If that doesn't cure the idle you may need to get into the carburetors and clean them manually.

If you don't know how old the timing belts are on this bike I'd be changing them right away, this is an interference engine and if a belt goes it usually takes pistons and valves out with it... There's "How-To" articles here on the site. Belts with 50000 miles or older than 10 years are very serious candidates for replacement. Also check the date codes on your tires, more than 5 years old you should look at replacements.

I'm sure you'll be finding many other maintenance items needing done, there's a wealth of good DIY articles, and a very friendly and helpful membership on the site!

Enjoy your new ride, and "Rubber Side Down" :D
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

Naked Wing rider
Posts: 14
Joined: Tue Sep 18, 2018 6:30 pm
Location: Calhoun Ga
Motorcycle: 1979 honda goldwing gl1000

Re: 1979 gl1000 crank case breather hose diagram?

Post by Naked Wing rider » Wed Sep 19, 2018 9:01 am

Thank you very much Denver winger.

I have marvel mystery oil in the tank now. I think I will drain it out and put sea foam instead.

And just to see. I just noticed that my crank case breather has a misty white smoke coming out of it?

Is this a issue or just normal blow by for this motor?

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DenverWinger
Posts: 462
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
1977 GL-1000 (2002-2006) sold

Re: 1979 gl1000 crank case breather hose diagram?

Post by DenverWinger » Wed Sep 19, 2018 9:07 am

No issue there, and that will likely subside with more miles. (and that's what the "Drain" tube from the airbox is for)... You didn't say how long bike had been sitting, likely an oil change would help.

The Seafoam doesn't work instantly, expect at least 3-4 tanks of fuel before you start noticing it....
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

Naked Wing rider
Posts: 14
Joined: Tue Sep 18, 2018 6:30 pm
Location: Calhoun Ga
Motorcycle: 1979 honda goldwing gl1000

Re: 1979 gl1000 crank case breather hose diagram?

Post by Naked Wing rider » Wed Sep 19, 2018 10:26 am

The guy I got it from. Supposedly rebuilt the carbs 3 years ago. But he drove maybe 800 miles in the last 3 years.

I'm pretty sure it sat for a little while before I bought it.

And he did change the oil. But he put Semi synthetic 10 30w for cars.
I'm guessing this is not good and needs to be changed. With maybe at least 15 40w standard oil?

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DenverWinger
Posts: 462
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
1977 GL-1000 (2002-2006) sold

Re: 1979 gl1000 crank case breather hose diagram?

Post by DenverWinger » Thu Sep 20, 2018 8:03 am

When you get new oil check the little API doughnut (usually on the back label) which specifies the service grade. You want the oil where the bottom half of the ring is empty (no text), this indicates no added friction modifiers. Makes the wet clutch happy. Many of the guys on the site run 5W-40 Shell Rotella T6 Synthetic Diesel oil, it also is JASO MA certified (another certification that wet clutches like), not very expensive, and Walmart sells it. I've heard there's TWO varieties of T6, again look for the API donut and the JASO MA/MA2 certification on the label.

Synthetics are OK, and with higher mileage between changes you can get a full season on an oil change (unless you run 15k Miles a year :mrgreen: )

As stated, I wouldn't worry about the crankcase vapors, it's normal, and will probably subside after some good miles....
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

Naked Wing rider
Posts: 14
Joined: Tue Sep 18, 2018 6:30 pm
Location: Calhoun Ga
Motorcycle: 1979 honda goldwing gl1000

Re: 1979 gl1000 crank case breather hose diagram?

Post by Naked Wing rider » Fri Sep 21, 2018 9:04 pm

Thank you very much for all the help.
I've already noticed just the little bit of riding it has already helped the smoking.



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