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 01-18-2013, 10:17 AM   #72946
opium89
Beastly Adventurer
 
opium89's Avatar
 
Joined: Dec 2008
Location: Hutto, Texas
Oddometer: 1,136
Quote:
Originally Posted by Thumper Dan View Post
noob question, why do you have to remove the motor to put the new high comp piston in? Can't it be done whilst motor is in the bike?? I'm sure there is another reason.

I just did this, and yes it can easily be done by removing the top end with the engine still in the bike. I will also tell you that it is MUCH easier to remove the bottom end with the top end already disassembled. It was a serious PITA to get it in and out completely assembled and I wont be doing it that way again.
__________________
Tea parties are for little girls with imaginary friends.
opium89 is offline   Reply With Quote
Old 01-18-2013, 10:39 AM   #72947
TinkerinWstuff
Take it apart
 
TinkerinWstuff's Avatar
 
Joined: Dec 2010
Location: Colorado Northern Front Range
Oddometer: 1,292
maybe it's a perspective thing. Wrestle with a Honda V4 by yourself and the DR is a flippin cupcake.
__________________
1999 Suzuki DR650
1998 Honda VFR800 Interceptor
http://share.findmespot.com/shared/f...KJutW9osVpn3hd
TinkerinWstuff is offline   Reply With Quote
Old 01-18-2013, 10:46 AM   #72948
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,204
Quote:
Originally Posted by TinkerinWstuff View Post
maybe it's a perspective thing. Wrestle with a Honda V4 by yourself and the DR is a flippin cupcake.
Been there, done that!
Long ago I learned to dislike servicing V4s. So many things have to be done twice. It's like working on 2 motors at once...
__________________
Clarke's second law of Egodynamics: "For every expert, there is an equal and opposite expert." - Jasper Fforde
www.procycle.us - Everything for your DR650 and lots of other great stuff!
DR900 Big Bore Stroker buildup
TurboDiesel Corvette - go to the end to start at the beginning
procycle is offline   Reply With Quote
Old 01-18-2013, 11:01 AM   #72949
deathu
Adventurer
 
deathu's Avatar
 
Joined: Oct 2011
Location: Bucharest
Oddometer: 77
Quote:
Originally Posted by procycle View Post
And you can be sure there is matching galling in the small end of the rod. Any repair that does not include replacing the connecting rod is going to have limited life/reliability.
Quote:
Originally Posted by Mongle View Post
I completely understand. I say if the rod looks good: get a new pin and just have the piston honed. Obviously it was running when you took it apart so it is not like it is so screwed up it will never run again.
Quote:
Originally Posted by deathu View Post
I for sure will check how the small end looks, as soon as I have a chance.
So here is how my conrod small end looks like:






Obviously it is far from perfect, but how bad do you guys think it actually is?
As a side note, I was checking the ebay for complete crankshafts (second hand) and I found this one. Just look at the last picture of that item... seems just as bad as mine, if not worse. What struck me is that the seller states "good condition".


I'd really appreciate some input on this... How bad is the situation? what should I expect from this engine? Maybe at some point in the future I will manage to replace the conrod, but I need to know on the short term, do I need to worry? The bike will see maybe 5000kms/year, with a stock piston, and I don't run it hard.
deathu is offline   Reply With Quote
Old 01-18-2013, 11:28 AM   #72950
TinkerinWstuff
Take it apart
 
TinkerinWstuff's Avatar
 
Joined: Dec 2010
Location: Colorado Northern Front Range
Oddometer: 1,292
Quote:
Originally Posted by ER70S-2 View Post
The question has been asked: "How heavy is the DR engine?" You could tell us here AND post it up in Krusty's DR Index (Hiya Krusty, thanks again for the DR650SE INDEX ). Or you could let us down and be forgotten forever.

Here: Topic 12:
http://www.advrider.com/forums/showp...2&postcount=32
Bathroom scale said 107.5lbs (with oil)

Quote:
Originally Posted by procycle View Post
Just a tad over 100 pounds.
thunder stealer
__________________
1999 Suzuki DR650
1998 Honda VFR800 Interceptor
http://share.findmespot.com/shared/f...KJutW9osVpn3hd
TinkerinWstuff is offline   Reply With Quote
Old 01-18-2013, 11:45 AM   #72951
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,204
Quote:
Originally Posted by deathu View Post
So here is how my conrod small end looks like:

Obviously it is far from perfect, but how bad do you guys think it actually is?
As a side note, I was checking the ebay for complete crankshafts (second hand) and I found this one. Just look at the last picture of that item... seems just as bad as mine, if not worse. What struck me is that the seller states "good condition".
Yeah, the eBay item is worse. Obviously the seller does not know much but at leas there's a good photo of the small end to keep you from wasting any money on it.

How bad is yours? Well it's not at the point that it would self destruct immediately but it's a long way from being long term reliable. Running that rod will be a gamble on your part. It might last one year it might last ten years. It might make a rattling top end noise for the rest of the life of motor - or not. All the power the motor makes is transmitted through that little area between the rod and the pin. If this came into my shop (back when I was in the repair business) I would not put it back together with that kind of damage. Not because I wanted to sell the customer a new crankshaft but because as a professional you have to stand behind your work. You can't stand behind a motor put together with marginal parts.

Doing your own work and making your own decisions you can take that gamble if you want to. If or when there is a problem down the road you won't have some else to blame.
__________________
Clarke's second law of Egodynamics: "For every expert, there is an equal and opposite expert." - Jasper Fforde
www.procycle.us - Everything for your DR650 and lots of other great stuff!
DR900 Big Bore Stroker buildup
TurboDiesel Corvette - go to the end to start at the beginning
procycle is offline   Reply With Quote
Old 01-18-2013, 02:48 PM   #72952
vintagespeed
fNg
 
vintagespeed's Avatar
 
Joined: May 2011
Location: Rancho Cucamonger, CA
Oddometer: 1,721
two questions. i have 32k miles on the '06 DR, she's due for some carb work. stock needle jet is Y-5M but it's also $40 and i dont wanna spend $40 on a frickin needle jet unless it's made of unobtainium. also need a float needle and they're only sold with the float "assembly" whatever the hell that means... i'm running the KTM needle so i'm willing to give the X-6 needle jet a try, i suppose.

i need alternative Mikuni part numbers for the following items please:

needle jet and float valve needle and a source. thanks.


(please dont try to sell me a DJ jet kit, neither of these items is in one..)
__________________
530EXCR and a bunch of 2 strokes that you dont want to read about. :)

TAT-2013: http://www.advrider.com/forums/showthread.php?t=913898
SoCal_NoDak-2012: http://www.advrider.com/forums/showthread.php?t=829203

vintagespeed screwed with this post 01-18-2013 at 02:49 PM Reason: alternative not replacement
vintagespeed is offline   Reply With Quote
Old 01-18-2013, 03:02 PM   #72953
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,204
Quote:
Originally Posted by vintagespeed View Post
i need alternative Mikuni part numbers for the following items please:

needle jet and float valve needle and a source. thanks.
Moose racing has a "rebuild kit" that includes these items. Any Parts Unlimited dealer can get one for you. I'm certain the contents are not genuine Mikuni but probably will fit your budget.
__________________
Clarke's second law of Egodynamics: "For every expert, there is an equal and opposite expert." - Jasper Fforde
www.procycle.us - Everything for your DR650 and lots of other great stuff!
DR900 Big Bore Stroker buildup
TurboDiesel Corvette - go to the end to start at the beginning
procycle is offline   Reply With Quote
Old 01-18-2013, 03:03 PM   #72954
robndeb
n00b
 
Joined: Nov 2011
Oddometer: 3
Quote:
Originally Posted by procycle View Post

Doing your own work and making your own decisions you can take that gamble if you want to. If or when there is a problem down the road you won't have some else to blame.
Also, learning how to, and doing the work yourself guarantees that it
is done right. I don't trust anyone to work on my DR.
robndeb is offline   Reply With Quote
Old 01-18-2013, 03:03 PM   #72955
Rob.G
Mostly Harmless
 
Rob.G's Avatar
 
Joined: Jan 2010
Location: Fulltiming in an RV!
Oddometer: 2,130
Gold Valve Installation

Hey... I can't seem to find the threads for the Index; sure wish they were stickied at the top of Thumpers. I was wondering where there might be some write-ups on Gold Valve installation. My Fork Solution kit from ProCycle arrived yesterday and I was just looking at the instructions and thought, yeah, I need a write-up. :) I thought there was supposed to be a video, but there wasn't one in the package.

Local shop wants $275 to install them (HAHAHAHAHA) so I definitely will be doing this myself.

Thanks!

Rob
__________________
'12 Suzuki V-Strom DL650
'96 Suzuki DR650
'10 Kawasaki KLX351S #320
Rob.G is offline   Reply With Quote
Old 01-18-2013, 03:19 PM   #72956
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,204
Quote:
Originally Posted by Rob.G View Post
Hey... I can't seem to find the threads for the Index; sure wish they were stickied at the top of Thumpers. I was wondering where there might be some write-ups on Gold Valve installation. My Fork Solution kit from ProCycle arrived yesterday and I was just looking at the instructions and thought, yeah, I need a write-up. :)
Take a look here
--> http://www.procycle.us/info/articles...k-upgrade.html
__________________
Clarke's second law of Egodynamics: "For every expert, there is an equal and opposite expert." - Jasper Fforde
www.procycle.us - Everything for your DR650 and lots of other great stuff!
DR900 Big Bore Stroker buildup
TurboDiesel Corvette - go to the end to start at the beginning
procycle is offline   Reply With Quote
Old 01-18-2013, 03:20 PM   #72957
Sierra Thumper
Studly Adventurer
 
Joined: Oct 2012
Oddometer: 641
Quote:
Originally Posted by robndeb View Post
Also, learning how to, and doing the work yourself guarantees that it
is done right. I don't trust anyone to work on my DR.
I don't let ANYONE work on ANY of my bikes........EVER
It almost impossible to find anyboby that can do ANY work properly anymore.....the art of knowing you're job and having pride in it has died in america
__________________
"Don't get so concerned with the slab that you choose a turd for the dirt"- The Gospel as spoken by itrack
Sierra Thumper is offline   Reply With Quote
Old 01-18-2013, 03:26 PM   #72958
Rob.G
Mostly Harmless
 
Rob.G's Avatar
 
Joined: Jan 2010
Location: Fulltiming in an RV!
Oddometer: 2,130
Quote:
Originally Posted by procycle View Post
Thanks, Jeff!!

Edit: What's the poor-man's version of the damping rod holder tool?

Rob
__________________
'12 Suzuki V-Strom DL650
'96 Suzuki DR650
'10 Kawasaki KLX351S #320
Rob.G is offline   Reply With Quote
Old 01-18-2013, 03:29 PM   #72959
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,204
Quote:
Originally Posted by robndeb View Post
Also, learning how to, and doing the work yourself guarantees that it
is done right. I don't trust anyone to work on my DR.
This is only true if the person doing their own work actually knows what they are doing. Which is not all that common.

Not to put any disrespect on the original poster but he seems to want to leave the half trashed rod in the motor.
__________________
Clarke's second law of Egodynamics: "For every expert, there is an equal and opposite expert." - Jasper Fforde
www.procycle.us - Everything for your DR650 and lots of other great stuff!
DR900 Big Bore Stroker buildup
TurboDiesel Corvette - go to the end to start at the beginning
procycle is offline   Reply With Quote
Old 01-18-2013, 03:31 PM   #72960
motolab
Beastly Adventurer
 
motolab's Avatar
 
Joined: Feb 2006
Oddometer: 2,388
Quote:
Originally Posted by vintagespeed View Post
two questions. i have 32k miles on the '06 DR, she's due for some carb work. stock needle jet is Y-5M but it's also $40 and i dont wanna spend $40 on a frickin needle jet unless it's made of unobtainium.
You can get one for less than that.
Quote:
also need a float needle and they're only sold with the float "assembly" whatever the hell that means.
You can get one as part of a rebuild kit.
Quote:
i'm running the KTM needle so i'm willing to give the X-6 needle jet a try, i suppose.
The X-6 emulsion tube's outlet will be .055 mm (.0022") smaller than the Y-5M's. If the WOT CO trace showed an overly rich mixture in the low to low mid rpm range with fresh components, then perhaps a smaller emulsion tube would be a good idea, but keep in mind that a change of .055 mm is pretty large. Also note that the Y-5M emulsion tube, being nickel plated, will be much more resistant to wear than the X-6.

Since emulsion tube wear is caused by slide guide wear, I would recommend replacing the slide guide. I would expect it to be worn out just based on the mileage. Also inspect the slide for needle hole enlargement/ovaling and grooving on the downstream side.
Quote:
needle jet and float valve needle and a source.
Have a look at http://www.advrider.com/forums/showthread.php?t=528038.

Regards,

Derek
motolab 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 08:33 AM.


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