Rebuilding Air Shocks


Information and questions on GL1200 Goldwings (1984-1987)
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Poohman
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Motorcycle: 1985 GL1200A Apsencade
1998 GL1500 SE

Rebuilding Air Shocks

Postby Poohman » Thu Apr 04, 2013 7:24 pm



Does anyone know if there is a complete rebuild kit for the rear air shocks for a 1985 GL1200A. I have tried to check on the web and could not find anything. I would really like to try rebuilding them instead of spending $350.00 to $420.00 for a pair of shocks. I would really like to have air shocks and not the standard stay alone shocks.



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seabee_
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Location: sterling heights, mi
Motorcycle: 1985 Honda Goldwing GL1200
117k miles
1977 Kawasaki kz400
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1975 Honda CB360T

Re: Rebuilding Air Shocks

Postby seabee_ » Thu Apr 04, 2013 8:54 pm

Progressive sells shocks for the Goldwings and also has all parts needed to rebuild them. Do a google search on Goldwing shock rebuild and you will come up with links to many forum sites with instructions on rebuilding them and where to get parts. Go with the Progressive springs, they're the best out there. I'd post the links for you but they are at home on my laptop. Others will jump in with more info.
Paul
CE1 Navy Seabees/RET
1981 to 2002
ASE Mechanic

tprender
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Motorcycle: 1986 gl1200
1995 GL1500SE

Re: Rebuilding Air Shocks

Postby tprender » Fri Apr 05, 2013 9:04 pm

All that is needed to rebuild the rear shock is just the seal that cost about $12-18 depending on where you get the seal from. That is why there is no rebuild kit for the '79-87 shock.

evil
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Re: Rebuilding Air Shocks

Postby evil » Wed Oct 02, 2013 11:28 pm

tprender wrote:All that is needed to rebuild the rear shock is just the seal that cost about $12-18 depending on where you get the seal from. That is why there is no rebuild kit for the '79-87 shock.


You also need new springs, fluid, rubber dust boots, grommets and quite a bit of other things, why hasn't anyone put together a list of sources and things you may need so you can build your own kit out of the possible parts available?

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NKYWinger
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Re: Rebuilding Air Shocks

Postby NKYWinger » Thu Oct 03, 2013 8:43 am

Poohman-
Get the seals from Mother Honda, new springs from Progressive and then follow the 'how to' and you'll be good to go! I think every single person who's done this reports great results....
--John--

FTCS(SS) USN Ret.
'83 GL1100 Aspy (SOLD)
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GWRRA 339547 KY - 'G'
DS# 1547

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Cattmando
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Location: Vincennes, Indiana
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Re: Rebuilding Air Shocks

Postby Cattmando » Thu May 12, 2016 12:25 pm

Bought a pair of well used air shocks off Flea Bay, oily and dirty but they will be serviceable. Ordering various parts from Bike Bandit to get'em up to snuff. Service instructions are in the service manual, looks to me like doing a set of forks. Also, found this u-tube vid:



Hold on after part one and part two will play.

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Cattmando
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Re: Rebuilding Air Shocks

Postby Cattmando » Fri May 20, 2016 3:56 pm

Ugh! Following the vid shown above, got the first shock apart no problem. Reassembling, tried to pour in the required 12.5 oz of ATF. Shock will take only about 10 to 11 oz. Putting my cup up against the body of the shock, it's obvious it won't take the whole volume. Help!!??

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Asp
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Location: Shrewsbury UK
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Re: Rebuilding Air Shocks

Postby Asp » Fri May 20, 2016 4:25 pm

I rebuilt my Progressive shocks recently, which look the same as the genuine Honda ones, and they only use 2oz of ATF.

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Cattmando
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Re: Rebuilding Air Shocks

Postby Cattmando » Sat May 21, 2016 5:38 am

Thanks, Asp. I'm finding other info on line, this vid (12 parts, refill is in part 12) sez 10.5 oz with the Progressive springs in the stock shocks.

Another thread on this site sez 11 oz.

I suppose it's possible (a) the Honda book is wrong or (b) my used shocks already have Progressive springs. Anyway, 2 oz is probably correct for the Progressive shocks but seems a small amount.

I'm going to go with the 10.5 and get'em back together today or tomorrow. No need to rush as I'm still awaiting new dust seals for my brake calipers.

BTW, the 12 part rebuilt vid (linked above) is worth watching. The details are good tho the production quality is pretty bad. Kudos to the producer (Wil Coy) for getting it up on YouTube. Vid is from April 2015, so pretty current. Tuff to video and wrench at the same time. I just Googled I-Phone tripod and came immediately across this: http://www.miniinthebox.com/universal-mini-tripod-holder-with-mobile-phone-holder-and-bluetooth-remote-shutter-for-iphone_p2914799.html?currency=USD&litb_from=paid_adwords_shopping&utm_source=google_shopping&utm_medium=cpc&adword_mt=&adword_ct=100792517248&adword_kw=&adword_pos=1o3&adword_pl=&adword_net=g&adword_tar=&adw_src_id=7107338275_427104568_30693735208_pla-151719899562&gclid=Cj0KEQjwjoC6BRDXuvnw4Ym2y8MBEiQACA-jWbwUA98qxc2rGlDZQOkHjCmDDMzPTbNSMWko1mV_coMaAnNJ8P8HAQ If I can find Wil's contact info, I'll buy one and send it to him. :D

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Asp
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Re: Rebuilding Air Shocks

Postby Asp » Sat May 21, 2016 6:02 am

Got my info here;
http://www.progressivesuspension.com/pd ... 68-100.pdf
They are the same size as the Honda shocks, and even use the same seals, so I can't see why the Honda ones need so much oil?
The front forks only use just under 11oz on an oil change & they are huge in comparison to the dampers in the rear shocks

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Cattmando
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Re: Rebuilding Air Shocks

Postby Cattmando » Mon May 23, 2016 8:13 am

Got my shocks rebuilt, put in 10.5 oz as recommended in the 12 part rebuild vid above. 12.5 oz was just too much, nearly overflowed the canister. Anyhoo, here's a couple pics, first with a shock blown apart using the rubber tip air gun (the drip pan caught everything), second with my high-price bicycle pump attached to the bike, showing 25 psi. This is 24 hours after the initial pump, so they are holding air. Initially pumped them up to 50 and the rear end was like a rock. 25 "feels" about right with the bike setting static. Right now, long as they're holding air, I'm happy.


Don't recall if I mentioned it earlier, but the after market shocks which were on the bike when I got it were about an inch too long and pushed the swing arm down far enough to foul the muffler mount on the left side when fully extended (like when riding a rough road, etc.) Also, all my other clearance complaints seem to have disappeared with everything clean and new rear tire and proper shocks installed. Nothing touches on either side.

Won't get a test ride 'til the additional brake parts arrive.




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