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Old 12-19-2014, 07:48 PM   #1
Rapid Dog OP
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Cool2 Derelict Deux - Another '91 GS

Well, finally managed to find another airhead project...not going overboard this time. This is going to be a casual approach to reviving a running bike that's seen the real ADV world and set aside for 7 years.

Owned by a fellow name of Bruce. Had the bike stored at Mojave airport.
Bruce is the real deal, bought this bike near new and rode it all over the US, Baja, and South America...

79,574 miles on the ODO.
Religiously maintained as far as fluids and tuning.
'Needs seals, oil leaking everywhere, need tires, not roadworthy..." the ad said.
Bruce mentioned to me today that it was a ritual, but at some point he just stopped going to church.
Time to let it go.

That's Bruce on the '91, and his buddy on the '90, motoring across tthe Salar de Uyuni in Bolivia about circa 1995. Better days of youth I 'spect.

Being an aircraft composites specialist, he built 13 gallon tanks (!) and custom panniers for both bikes.
They are very hearty pieces, and light as a feather.



At any rate, she's home with me now. Dirty filthy, lacking only a more youthful love. I think I might have just enough to make this old girl do one more dance...

Comin' home



Unloaded and a little bath...


General state of things..




Up on the rack, today I drained all the fluids.
Tranny and rearend oil looks clean, no signs of metal on the drainplugs.
Motor oil was dirty, but no wonder looking at the clogged K&N filter. That's going in the dumpster.


But the airbocx is super clean inside.


Did a mickey mouse compression test ad both sides pumped up to 105+ each side.


So far I'm feeling pretty good about it.
Starts and runs, valves are very quiet. All the lights work, has decent compression. I haven't rideen nor shifted it but we shall see in a week or so...
Pulling the rear wheel showed a pretty oil misted inside. Turning the wheel while in gear produced a bit of a clink'clunk/slack somewhere in the driveline. Can't remember if the first Derelict did that.
I'm all ears here...

Bruce said he had the driveshaft rebuilt in South America, and the head bearings done on another venture. His eyes misted up while remembering the mechanic that helped him and charged him nothing.

Stay tuned...

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Old 12-19-2014, 08:02 PM   #2
tominboise
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Sweet. Can't wait for the build. Does he have molds for the tanks?
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Old 12-19-2014, 08:13 PM   #3
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Old 12-19-2014, 09:21 PM   #4
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Originally Posted by tominboise View Post
Sweet. Can't wait for the build. Does he have molds for the tanks?
I doubt it, they were built in the 90's.

First question.
There's a oil filter gasket on the filter cover (now).
Fische doesn't call for one....




I say nol gasket, what say you?
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Old 12-19-2014, 09:28 PM   #5
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Best to measure the oring compression and go from there. Anton's website has the details and numbers. A gasket will reduce the amount of oring compression, which may be perfectly appropriate. But you won't know until you measure it. Leaving the gasket off will increase the oring compression.
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Old 12-19-2014, 10:02 PM   #6
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Quote:
Originally Posted by tominboise View Post
Best to measure the oring compression and go from there. Anton's website has the details and numbers. A gasket will reduce the amount of oring compression, which may be perfectly appropriate. But you won't know until you measure it. Leaving the gasket off will increase the oring compression.
If youre not going to digest all of that, the simple solution is to put it back withthe same stuff it cvame out with, since you have a fair bit of knowledge that will work out

I bet if you measured the can depth, though, you'd get it right, if it isnt already.
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Old 12-19-2014, 10:05 PM   #7
robtg
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The K&N was filthy "But the airbox is super clean inside."

That should tell you something. Don't throw it away, properly clean it, re oil it and use it.
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Old 12-19-2014, 10:15 PM   #8
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You lucky son of a bitch!!! Very cool story and even cooler bike......watching with envy.
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Old 12-19-2014, 10:22 PM   #9
Mark Manley
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That has to be the best looking large capacity tank I have seen for these bikes, the rest of the bike looks pretty good as well, a good find.
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Old 12-20-2014, 07:28 AM   #10
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I get a little dyslexic when I read Anton's stuff.
When he says 'cannister depth' he means the depth of just the lip where the white o-ring sits flush with the cover, that about right?

When i pulled the cover and (no spacer on it) there was just the black and white o-rings, plus the gasket.
The filter felt stuck, like there was suction holding it in.
I had to tug pretty hard to extract the filter.
Never had that problem before...
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Old 12-20-2014, 07:58 AM   #11
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Quote:
Originally Posted by Rapid Dog View Post
I get a little dyslexic when I read Anton's stuff.
When he says 'cannister depth' he means the depth of just the lip where the white o-ring sits flush with the cover, that about right?

When i pulled the cover and (no spacer on it) there was just the black and white o-rings, plus the gasket.
The filter felt stuck, like there was suction holding it in.
I had to tug pretty hard to extract the filter.
Never had that problem before...
canister depth is how far in from the flush surface of the case the actual filter can sits.

The filter's rubber gets stuck on the tube, happens to me all the time. Double check that there isnt already a little rubber from a previous episode already on it, thats happened to me as well.
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Old 12-20-2014, 09:21 AM   #12
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Checked the depth, it's right at 4mm.
The white O-ring was pinched by not being centered completely.

The tranny shifter seal was not seated as well, it's no wonder there is oil everywhere on the lower extremities...
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Old 12-20-2014, 11:54 AM   #13
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NICE BIKE!
Please keep us informed.
Thanx.
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Old 12-20-2014, 02:58 PM   #14
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Figured it
No gasket needed, just one spacer.
I'm going to pull the Coker completely and use a standard filter plate.
Thought I had one but no can find.
Anyone have one let me know...
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Old 12-20-2014, 04:00 PM   #15
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You got it! right on. I'd hoped to get that tank myself!
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