Awakening a 20 year sleeper.

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Don R
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Re: Awakening a 20 year sleeper.

Post #76 by Don R » Mon Oct 23, 2017 11:15 pm

Update-
I did a Dyna S, 1500 coils and made new wires. The fuel pressure checked but I got a new fuel pump and gaskets/insulators anyway. I bought cam belt tensioner bearing parts as described in the DIY tensioner thread using the Gates T42015 idlers and Dorman 610308 10mm studs. I have a shhhhhh noise in the front so I'll replace those. The tab for the parts was under $50 from Rock Auto. My local parts guy isn't wild about my crazy parts orders. (they don't always work) lol. I still want to pull the carbs for a thorough cleaning this winter.

This pup should be good for a few years after this winter. I'll post the results of the tensioner rebuilds. I'm wondering if I can cut off the idler stud and drill the proper hole for the 10.3 mm splined stud. That will negate the need for a 14mm x 10 mm spacer. I may tig tack the back of the stud also.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

Don R
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Re: Awakening a 20 year sleeper.

Post #77 by Don R » Sun Sep 09, 2018 3:59 pm

Update, I did all of the above and the shhhhh noise is still in there somewhere. The idler swap was awesome though. It still has an irritating come and go miss. One day it runs great and the next it runs awful. I posted a thread about my theory it's sucking air somewhere in the fuel system.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

Don R
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Re: Awakening a 20 year sleeper.

Post #78 by Don R » Thu Jul 04, 2019 11:00 pm

Well, time for an update, I posted on the brake swap, it got V65 front calipers with EBC pads on VT 1100 sabre brackets. Really stops nice. It got an acid washed and lined tank, cleaned internal fuel lines, new external fuel lines, new fuel pump, filter, carbs cleaned several times due to a bad filter, the last two by a pro that I trust and watched. 1500 coils, dyna, new wires and caps, Denso plugs, new manifold o rings.
At times it still acts lean, especially when I roll on throttle about 3,000 rpm. A bit of choke clears it up and it's cold blooded. The plenum has a Randakks gasket set and carb seals. New vacuum pull off kit too. It got really close to 40 mpg last week, mostly on the two lane with two runs up to redline in third gear. It's a bit loud at speed, I suspect there isn't much left in the mufflers. Creeping up on 60,000 miles.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

Don R
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Re: Awakening a 20 year sleeper.

Post #79 by Don R » Thu Jul 04, 2019 11:04 pm

In light of all of that, I'm building a fitting for a wide band o2 sensor that will insert into the pipe and plug into the battery charger lead. Install it and learn the truth.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

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Track T 2411
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Re: Awakening a 20 year sleeper.

Post #80 by Track T 2411 » Thu Jul 04, 2019 11:30 pm

I'll be interested in your findings. My '76 has the exact same issue from 3-4k RPM'S. I don't recall if you shimmed the needles, but read here somewhere that helps with the later 1000's...
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.

Don R
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Re: Awakening a 20 year sleeper.

Post #81 by Don R » Sat Jul 06, 2019 2:44 am

Track T, I searched and didn't find that info but am relieved it might be easily fixed. I am considering shimming the needles. My big mistake was returning the borrowed 1100 carbs I had on it to go to Sturgis. It ran awesome with those on it. My shop owner buddy uses them as a test set when a gl comes in with suspected carb issues.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

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Track T 2411
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Re: Awakening a 20 year sleeper.

Post #82 by Track T 2411 » Sat Jul 06, 2019 10:02 am

Don, here's a link to Randakk's blog concerning the shims. While it is mentioned only for the '77's, the description of the symptoms are nearly identical to my '76. It has been suggested by a trusted member here that I give it a go; I just haven't had the time... I have read of others doing the shims on '78's with success.
http://www.randakksblog.com/special-tun ... #more-1086
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.

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robin1731
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Re: Awakening a 20 year sleeper.

Post #83 by robin1731 » Sat Jul 06, 2019 10:04 pm

Just remember raising the needles, putting shims under the clip, will richen the mixture all the way from about 1/4 throttle to full throttle.

.
1975 GL1000 parts bike (parts for sale)
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder

Don R
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Re: Awakening a 20 year sleeper.

Post #84 by Don R » Wed Jul 10, 2019 6:58 pm

Thanks. I hadn't found that info, even though I've looked around that site.
I've been adjusting and cleaning K0 cb750 carbs today and seem to have made a breakthrough on them too. I didn't understand the cable/slide stop adjustment and somehow had #3 way off. That and body shop debris in the freshly painted gas tank made it a rough go.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

Don R
Silver Member
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Posts: 518
Joined: Thu Feb 26, 2015 2:53 am
Location: West Central Illinois

Re: Awakening a 20 year sleeper.

Post #85 by Don R » Thu Jul 18, 2019 11:25 pm

It was very warm today, 93* in the afternoon. Anyway I gave the oldwing a 1/2 turn of carb screw and rode it. It ran well, loves the heat, hates the cold. The fan runs when it didn't, cools good when it didn't, runs when it didn't. Stope really good when it didn't before, I needed to slap the sidecover to make the solenoid click. I guess it wants my special lawn tractor solenoid swap. Did it on the 79, should work here too.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.

Don R
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Posts: 518
Joined: Thu Feb 26, 2015 2:53 am
Location: West Central Illinois

Re: Awakening a 20 year sleeper.

Post #86 by Don R » Sat Jul 20, 2019 12:35 am

This is on my 750 K0 836 bike but it's made to be portable. It plugs into a battery tender plug for power and I'll have it on my gl1000 to see some air/fuel ratios soon. It went lean because someone didn't turn the fuel on. good to know it works. Will possibly be an eye opener I'm seeing some rich numbers on the early 4 cable carbs with stock jets.

https://photos.app.goo.gl/7UAPusfFs17T2LR76
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.


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