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Old 11-10-2011, 06:01 PM   #31
Toaster.Tan
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Location: The Great NorthWet
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Quote:
Originally Posted by bmwrench View Post
Find an experienced airhead fan to go with you, after getting him/her to swear they won't buy it out from under you. If the price is in line with it's condition, buy it. A late R80G/S is too cool to pass up.

The only thing hard to find for these bikes are instruments and body panels.
I have bought several bikes by having an Airhead Club member in the area look at it. I also have looked for others - in one case bought the bike myself and told him if he didn't want it - I would keep it.

Oh contrare.... there are many Airheads in the Quebec area and if you join the internet club will have a wealth of support for your wrenching. Even folks from that wasteland below you will want to wander up...eh....or...we. The amazing thing about the airheads is they still make parts for them and there is a worldwide network of aftermarket stuff.
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72 R75/5 Toaster~
80 CBX-SuperSport~91 R100GS-PD~04 R1150RT
Bobber project using 1203cc Thunderbolt engine.
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Old 11-10-2011, 06:13 PM   #32
Toaster.Tan
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Quote:
Originally Posted by Airhead Wrangler View Post
I'll agree with only one of those statements. I would add though that it's probably the smoothest twin BMW has ever made... present day models included.

I'd sell the 40mm bings for 32s.
Agreed - I meant 'BMW' engine. It IS the smoothest.
Also agree, didn't make it clear they suck out the mid-range power on an 80. 40mm are gold to folks with R100's that are doing performance changes. They have the room to make more muscle. I had a 77 R100S in Seattle that had hi-comp heads, 40mm carbs and exhaust, lightened fly wheel and other farkles that gave it pretty good push for an old, heavy bike.
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80 CBX-SuperSport~91 R100GS-PD~04 R1150RT
Bobber project using 1203cc Thunderbolt engine.
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Old 11-11-2011, 02:33 PM   #33
frichtie OP
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Wink

I'm back!

Bought the bike. The phone rang while we were sitting at the kitchen table. The seller answered: "Sorry, I just sold it".

The transmission is original. He took the crank off because he didn't want it to hit his leg while riding. I have it.
Rear fender will be replaced. Fork will need attention. It was reinforced but to me it looks like a "field-fix". I can easily make a better looking part. Maybe with stainless steel.
Compression: 118-120 cold. What do you think?
Back later.

Eric
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Old 11-11-2011, 03:46 PM   #34
SOLO LOBO
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Quote:
Originally Posted by frichtie View Post
Compresion: 118-120 cold. What do you think?
Back later.
Just ride it, and congrats!
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 11-11-2011, 04:02 PM   #35
Airhead Wrangler
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Quote:
Originally Posted by frichtie View Post
Compression: 118-120 cold. What do you think?
The spec in the factory shop manual is:

Good: >128 psi
Normal: 107-128 psi
Poor: <107

I'd say you won.

Either Solos got some serious carbon buildup, a shaved head, hi-comp pistons or a combo of all three because 150 is off the charts. At least it's definitely holding compression though.
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Airhead Wrangler screwed with this post 11-11-2011 at 04:09 PM
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Old 11-11-2011, 04:13 PM   #36
SOLO LOBO
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Quote:
Originally Posted by Airhead Wrangler View Post
Either Solos got some serious carbon buildup, a shaved head, hi-comp pistons or a combo of all three because 150 is off the charts. At least it's definitely holding compression though.
That, or my twice used in 18 years comp tester is f-ed up.....

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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 11-11-2011, 05:10 PM   #37
Airhead Wrangler
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Originally Posted by SOLO LOBO View Post
That, or my twice used in 18 years comp tester is f-ed up.....

Damn, it's reading 160. You'd need a CR of well over 10:1 to get that. Something doesn't add up there.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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Old 11-11-2011, 05:18 PM   #38
SOLO LOBO
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Quote:
Originally Posted by Airhead Wrangler View Post
Damn, it's reading 160. You'd need a CR of well over 10:1 to get that. Something doesn't add up there.
Looks like I need to check the calibration on that gauge.... just to be sure
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 11-12-2011, 07:57 AM   #39
Toaster.Tan
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Compresion test

It may be noth'n, but I disconnect the coils and pull both plugs to check compression. It lets the starter crank a bit better and - real or imagined - get a better reading. Disconnect the fittings on the gauge and hose the inside with carb cleaner to degrease the little valves and tube. Try it out again. My 2
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72 R75/5 Toaster~
80 CBX-SuperSport~91 R100GS-PD~04 R1150RT
Bobber project using 1203cc Thunderbolt engine.
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Old 11-12-2011, 07:58 AM   #40
Toaster.Tan
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Oh yeah..... CONGRATULATIONS on the purchase. You will love that bike.
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ToasterTan
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72 R75/5 Toaster~
80 CBX-SuperSport~91 R100GS-PD~04 R1150RT
Bobber project using 1203cc Thunderbolt engine.
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Old 11-12-2011, 08:03 AM   #41
hardwaregrrl
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Pics or it didn't happen.
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Old 11-12-2011, 08:26 AM   #42
One Less Harley
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Quote:
Originally Posted by hardwaregrrl View Post
Pics or it didn't happen.
speaking of picts...where's your ride report from earlier this year, or were you just talking the talk
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Old 11-12-2011, 08:35 AM   #43
Beater
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Quote:
Originally Posted by hardwaregrrl View Post
Pics or it didn't happen.
+1,000

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'85 R80RT G/Sified <|> '91 R100GS Bumblebee (103K miles and climbing) <|> '73 R75/5 LWB
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Old 11-12-2011, 02:46 PM   #44
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Originally Posted by One Less Harley View Post
speaking of picts...where's your ride report from earlier this year, or were you just talking the talk
Never wrote a full report. But here is the Canadian section we rode: http://www.advrider.com/forums/showt...94395&page=138

hardwaregrrl screwed with this post 11-12-2011 at 06:37 PM
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Old 11-12-2011, 06:14 PM   #45
One Less Harley
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Quote:
Originally Posted by frichtie View Post
I'm back!

The transmission is original. He took the crank off because he didn't want it to hit his leg while riding.


Eric
Just ain't no way to hit your leg on the kick starter unless it's bent. They can still last a long time that way though.
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