ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-20-2012, 03:47 PM   #76
isdt BMW
willserv@aol.com
 
Joined: Mar 2010
Location: N. E. Ohio
Oddometer: 232
muffler

My 57 R-50 ISDT has a single R-51 muffler and works fine. only 250cc firing at any time. My R-75 ISDT has a 1-1/2" pipe into and out of the muffler, same deal, 375cc per cylinder. The 2 into 1 y pipe is a full foot forward of the muffler. BSA and Triumph twins used a single standard muffler with 2 into1 exhausts.
isdt BMW is offline   Reply With Quote
Old 11-21-2012, 07:54 AM   #77
tdrrally
Beastly Adventurer
 
tdrrally's Avatar
 
Joined: May 2008
Location: doing hard time in charleston,wv
Oddometer: 3,323
any pix of that r50?

it might inspire some one
__________________
2000 DRZ400e tagged
1980 TS125 project in the corner
tdrrally is offline   Reply With Quote
Old 11-21-2012, 11:13 AM   #78
isdt BMW
willserv@aol.com
 
Joined: Mar 2010
Location: N. E. Ohio
Oddometer: 232
R-50 isdt

There are pics here and also if you google R50-ISDT, it will show up. I do not have smugmug or any other hosting site, I will have to get one to post my R75-ISDT photos, I'm not computer savvy enough to do it myself, I'll have to ask my kids for help.
isdt BMW is offline   Reply With Quote
Old 11-22-2012, 10:00 AM   #79
limeymike
Who Me?
 
Joined: Aug 2008
Location: Dakota Territories.
Oddometer: 551
The flatter position is the more practical, the angled position is for looks only. I prefer the flatter because I want a bike to work for what it is intended and don't care about looks all that much. I wouldn't want to work around an upswept exhaust with luggage as you won't see the exhaust anyway.
limeymike is offline   Reply With Quote
Old 11-23-2012, 03:21 AM   #80
isdt BMW
willserv@aol.com
 
Joined: Mar 2010
Location: N. E. Ohio
Oddometer: 232
Quote:
Originally Posted by limeymike View Post
The flatter position is the more practical, the angled position is for looks only. I prefer the flatter because I want a bike to work for what it is intended and don't care about looks all that much. I wouldn't want to work around an upswept exhaust with luggage as you won't see the exhaust anyway.
The high pipe bikes are for dirt/enduro/play, for touring I use a conversion /2 R90 with Hollendia sidecar rig, or R69US with Craven bags or my 78 R100S motorsport with Krauser bags. Everyone needs a BMW for each purpose.
isdt BMW is offline   Reply With Quote
Old 11-30-2012, 05:06 PM   #81
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
I decided to save a little time (and gain some quality) so I bought these from BR Moto, who makes them for Wolfman. I have the Wolfman bags already.
Ready to weld!
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 12-01-2012, 04:57 PM   #82
Lornce
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,341
Dude, that's a neat bike.

Have you tossed your "calipers" yet. "+\- 0.1mm accuracy" (sic) is 8-thousanths of an inch. That's a mile. They're no good for measuring much of anything.

Recently bought a digital vernier for knocking around the garage (ie: I'd never take it to work) and it's accurate to within 0.0005" (1\2 a thou). I paid $15 for it. No kidding.

Keep posting pictures. You've got a really neat bike there.

Lornce is offline   Reply With Quote
Old 12-01-2012, 05:48 PM   #83
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
I'm out of the business of making tiny accurate measurements! There are machine shops for that...

I've got the subframe almost finished. 90% of the time spent on this project so far has been staring at it and sipping Jack on the rocks. Pics coming...
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 12-03-2012, 09:42 PM   #84
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
Main subframe done. Took me a while to figure out a way to mount (1) muffler hanger; (2) side racks; (3) fender hanger; and (4) top rack to the subframe, and add a little extra support to the flat rear part. Solution is those side plates. Those are 1/8 plate welded to the 12 gauge tubing. The plates will be finished with holes drilled for mounting the other parts.



I got a lic plate/tail light bracket from chris at boxermetal that works perfectly.
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.

DiabloADV screwed with this post 12-03-2012 at 09:54 PM
DiabloADV is offline   Reply With Quote
Old 12-31-2012, 05:47 AM   #85
hardwaregrrl
You talkin' to me?
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 6,654
Uhmmm....Hello?!!!
hardwaregrrl is offline   Reply With Quote
Old 12-31-2012, 09:24 PM   #86
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
Quote:
Originally Posted by hardwaregrrl View Post
Uhmmm....Hello?!!!
The holidays got me off track! Actually -- I spent a lot of time fiddling with various ways to set up the exhaust. Current header sidepipes block the use of a centerstand. I'd need to weld longer centerstand mounts, ala the later bikes. But, since I want to do a crossover and have a single exhaust, I'd need to do that anyway...

So, I'm next going to make the exhaust merge/crossover and get my muffler can mounted. Then fab and weld new centerstand mounts.

Wheels hubs are being sent back to me from the vaporblast guy, then off to get built into wheels. If I like how the vaporblasting turned out, I'll send up the gearbox and motor cases.
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 01-08-2013, 06:35 PM   #87
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
Got hubs back from vapor blasting. I decided to have the R90 hub converted to standard sealed bearings by Woody's. No more fiddling with spacers and wedding rings and torque wrenches.

These get mailed out to Woody tomorrow, for mounting as 17x2.5 rear and 19x2.5 front, sealed for tubeless.

Also made a decision to make an under-frame crossover pre-muffler, to then allow for a minimalist single can on the left side. The mandrel-bent tube I need to do that should be here this week and I can commence that experiment.



__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 01-22-2013, 09:10 PM   #88
DiabloADV OP
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
Remember when you were a kid and it was easier to work on your bike if you turned it over?

Ready to start the exhaust mods and make new center stand mounts.
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 01-23-2013, 05:18 AM   #89
Beater
Blinded by Science
 
Beater's Avatar
 
Joined: Sep 2009
Location: Atlanta, GA, USA
Oddometer: 2,881
Quote:
Originally Posted by DiabloADV View Post
Remember when you were a kid and it was easier to work on your bike if you turned it over?
Yes ... and I must admit, this has NEVER occured to me.
__________________
Fred
'85 R80RT G/Sified <|> '91 R100GS Bumblebee (103K miles and climbing) <|> '73 R75/5 LWB
Airhead Zen: Ride - Repair - Ride - Maintain - Ride - Repeat
Beater is offline   Reply With Quote
Old 01-23-2013, 05:34 AM   #90
Stagehand
+/- V TDSPP
 
Stagehand's Avatar
 
Joined: Oct 2004
Location: Shawangunks
Oddometer: 24,876
Quote:
Originally Posted by Beater View Post
Yes ... and I must admit, this has NEVER occured to me.
It occured to me once, when i broke the shift pawl spring, and I thought "well, I can think of ONE way to shift gears" that was it, though.
__________________
Unintentional psychokinesis.
Stagehand is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 01:12 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014