ADVrider

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 06-24-2012, 04:04 PM   #5851
12120
Gnarly Adventurer
 
12120's Avatar
 
Joined: Apr 2012
Location: SW Washington USA
Oddometer: 317
baah fooey

Got the cases apart on my spare motor project. The cases are junk. Seem they took a wack to the frt end. Dented/bent right in the middle right on the seem. Cracked not flat, and not something I want to try to use. Guess I will just get a top end ready when I can and use the lower half that I am riding around on. Lots of spare parts now as all the stuff inside looks good.
Chris
__________________
If you find yourself in a fair fight, your tatics are wrong.
'83 XL 600r
12120 is offline   Reply With Quote
Old 06-24-2012, 04:27 PM   #5852
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 10,664
I have a lower end available
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is online now   Reply With Quote
Old 06-24-2012, 08:22 PM   #5853
12120
Gnarly Adventurer
 
12120's Avatar
 
Joined: Apr 2012
Location: SW Washington USA
Oddometer: 317
lower end

Might have one close to home here. Have to check on it. Not sure I want to bother with another one. I think I will see if I can find a good top half to restore and just have the bike in the basement come winter. Pull motor and spend a day swapping all the parts form one to the other.

Chris
__________________
If you find yourself in a fair fight, your tatics are wrong.
'83 XL 600r
12120 is offline   Reply With Quote
Old 06-25-2012, 08:34 AM   #5854
Ron from BC
Beastly Adventurer
 
Ron from BC's Avatar
 
Joined: Jun 2008
Location: Vancouver Island
Oddometer: 1,286
Quote:
Originally Posted by mcma111 View Post
.....so a fair price for an 83 in, what appears to be, excellent condition with 8k miles? Current owner only had it for 1 year however PO had it since '93.



Also, aside from the color scheme basically no difference between the 83 to 87?
__________________
'02 BMW R1150 GSA
'06 Kawasaki KL250H Super Sherpa
Ron from BC is offline   Reply With Quote
Old 06-25-2012, 08:39 AM   #5855
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 10,664
The later models got rid of the fifth decom valve. Some jetting changes but for the most part the XL600 stayed the same from start to finist 83-87. And of course BNG...

Bold New Graphics
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is online now   Reply With Quote
Old 06-25-2012, 09:14 AM   #5856
Ron from BC
Beastly Adventurer
 
Ron from BC's Avatar
 
Joined: Jun 2008
Location: Vancouver Island
Oddometer: 1,286
Tx Steve....I'm in no hurry but I also don't want to pass up a good bike. Don't know how low he'll go but from the reading maybe 1500 is a good price.
__________________
'02 BMW R1150 GSA
'06 Kawasaki KL250H Super Sherpa
Ron from BC is offline   Reply With Quote
Old 06-25-2012, 05:36 PM   #5857
BRPtourer
Gnarly Adventurer
 
Joined: Jan 2007
Location: Carson City
Oddometer: 158
Just for reference only, I saw a very nice '86 for sale in Tahoe for $1500.00 a few weeks ago. They are out there, just have to be patient and keep looking.
BRPtourer is offline   Reply With Quote
Old 06-26-2012, 05:46 AM   #5858
Carter Pewterschmidt
Studly Adventurer
 
Carter Pewterschmidt's Avatar
 
Joined: Nov 2010
Location: Milwaukee
Oddometer: 948
Quote:
Originally Posted by mcma111 View Post
The later models got rid of the fifth decom valve. Some jetting changes but for the most part the XL600 stayed the same from start to finist 83-87. And of course BNG...

Bold New Graphics
That's about it. The only major difference is that the 83 model had bigger (30mm vs later 28mm) carburetors and cylinder head intake ports. Theoretically this would give that model less low end but more top end power. If that's true or to what degree the powerband is changed, I do not know, I've never seen anyone produce a dyno chart for an XL.
Carter Pewterschmidt is offline   Reply With Quote
Old 06-26-2012, 11:08 AM   #5859
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 10,664
Ron,

Here is another cherry XL.

http://sfbay.craigslist.org/sfc/mcy/3102531447.html
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is online now   Reply With Quote
Old 06-26-2012, 09:16 PM   #5860
12120
Gnarly Adventurer
 
12120's Avatar
 
Joined: Apr 2012
Location: SW Washington USA
Oddometer: 317
Pretty XL 600's

Man looking at those my old girl really does look used. I mean experienced. I have a question also. I know that the XL 600 used the same basic engine through all the years. However what other 600/650 motors work in the XL 600 frame?

Also if the XR 600 has the same motor will parts swap. Like for instance does a cylinder of a XR work on a XL lower end providing of course you have the proper piston? Or does the different stroke lengths foul things up?

Do heads swap as long as you have the proper carbs/carb for that head? I am just wondering. They look the same in the parts fiche pictures. DIfferent part numbers, though I can't see Honda starting over for each new model. Someone want to shed some light on this for me please?

Chris
__________________
If you find yourself in a fair fight, your tatics are wrong.
'83 XL 600r
12120 is offline   Reply With Quote
Old 06-27-2012, 08:02 AM   #5861
Ron from BC
Beastly Adventurer
 
Ron from BC's Avatar
 
Joined: Jun 2008
Location: Vancouver Island
Oddometer: 1,286
Quote:
Originally Posted by mcma111 View Post
Yep, that looks pretty darned nice. There was one back east in Canada however if it's too far away the shipping can be 50% or more on top of the bike and my old back would not like a fly and ride on that.

I'll just keep looking patiently, The one is Tacoma, after some sleuthing, turned out not to be the stock bike I thought. Re-bored, tank repainted, would need OEM seat cover etc. A previous PO told me he sold it a year ago for about 800 and now it's listed for 2300? I don't mind pullng everything off and re doing the frame and replacing things to stock but not at that price!
__________________
'02 BMW R1150 GSA
'06 Kawasaki KL250H Super Sherpa
Ron from BC is offline   Reply With Quote
Old 06-27-2012, 01:02 PM   #5862
Carter Pewterschmidt
Studly Adventurer
 
Carter Pewterschmidt's Avatar
 
Joined: Nov 2010
Location: Milwaukee
Oddometer: 948
Quote:
Originally Posted by mcma111 View Post
Nice, the 85 color scheme is my 2nd favorite XL.
Carter Pewterschmidt is offline   Reply With Quote
Old 06-27-2012, 01:09 PM   #5863
Carter Pewterschmidt
Studly Adventurer
 
Carter Pewterschmidt's Avatar
 
Joined: Nov 2010
Location: Milwaukee
Oddometer: 948
Quote:
Originally Posted by 12120 View Post
Man looking at those my old girl really does look used. I mean experienced. I have a question also. I know that the XL 600 used the same basic engine through all the years. However what other 600/650 motors work in the XL 600 frame?

Also if the XR 600 has the same motor will parts swap. Like for instance does a cylinder of a XR work on a XL lower end providing of course you have the proper piston? Or does the different stroke lengths foul things up?

Do heads swap as long as you have the proper carbs/carb for that head? I am just wondering. They look the same in the parts fiche pictures. DIfferent part numbers, though I can't see Honda starting over for each new model. Someone want to shed some light on this for me please?

Chris
The con rods for the XL and XR are the same, but the pistons are indeed different. The wrist pin location is different in the piston and that's how the stroke is changed. You could use the XR top end on an XL as long as it's from the 85-87 XR motor. The later single carb motors don't work in the XL frame. The single centered carb will be in the way of the shock. I'm sure most other 600 or 650 lower ends would fit, but the top must have the dual carb head.

Otherwise most of the parts are relatively the same.
Carter Pewterschmidt is offline   Reply With Quote
Old 06-27-2012, 09:00 PM   #5864
12120
Gnarly Adventurer
 
12120's Avatar
 
Joined: Apr 2012
Location: SW Washington USA
Oddometer: 317
The con rods for the XL and XR are the same, but the pistons are indeed different. The wrist pin location is different in the piston and that's how the stroke is changed.

The later single carb motors don't work in the XL frame. The single centered carb will be in the way of the shock. I'm sure most other 600 or 650 lower ends would fit, but the top must have the dual carb head.


So you could use the later 90 vintage cylinder to get the longer XR stroke, with the XR piston of course. Then install that between the '83 XL head and lower end? Don't know why I have to meddle with stuff? Guess it comes with the motorcycle gene.
__________________
If you find yourself in a fair fight, your tatics are wrong.
'83 XL 600r
12120 is offline   Reply With Quote
Old 06-27-2012, 11:51 PM   #5865
Billtr96sn
Flange Furtler
 
Joined: Nov 2010
Location: Somerset, UK
Oddometer: 393
Quote:
The con rods for the XL and XR are the same, but the pistons are indeed different. The wrist pin location is different in the piston and that's how the stroke is changed.
Changing the height of the wrist pin (Gudgeon pin in the UK) doesn't change the stroke. It only changes the height of the piston.
Moving the position of the big end in the flywheels changes the stroke.
__________________
If you see me coming, better step aside. A lot of men didn't, a lot of men died, all because of my shit brakes.
Billtr96sn 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 06:43 AM.


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