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 01-08-2013, 02:23 PM   #72616
Rusty Rocket
Life behind "Bars"
 
Rusty Rocket's Avatar
 
Joined: Dec 2005
Location: Trying to leave CT
Oddometer: 8,617
Quote:
Originally Posted by shu View Post
You shouldn't have problems until you get very low, like less than 18 pounds. Even then what will happen is the tire may rotate a bit and tear the stem out of the tube.

Suzuki recommends 23 F 25 R for the OEM Trailwings. I usually run 26F 28R on my tires (currently Heidenau K 60) - I get a better 'sticky' feel in the twisties than if I put 30+ in my tires.

.............shu
I ran 32psi in front and rear w/ Trailwings on my 1500 mile street adventure. Liked the way if felt. Seemed real smooth and it pushed around the garage soooo much easier than knobbies and 14psi.
__________________
In the beginning, there was nothing. Even That exploded
2009 DR650
..1972 Penton Six-Days ..1971 Suzuki TS185.. 2005 KTM 400exc
Member of: AMA, NETRA, Blue Ribbon Coalition, CCCofVT, Berkshire TR, CT Ramblers
Rusty Rocket is offline   Reply With Quote
Old 01-08-2013, 02:26 PM   #72617
shu
...
 
Joined: Feb 2010
Location: Colorado
Oddometer: 980
Quote:
Originally Posted by GSF1200S View Post
I have noticed that with my TM40, just like the BST, I do have to mess with the idle speed adjustment a bit. Ill start on full choke, runs fine. Starts to stumble, half choke. Starts to stumble, off choke. Then, the RPMs want to drop to 1-1.2k which is too slow, so I turn the idle speed up to about 1500. Once the engine gets thoroughly warmed up, it ends up idling at 1.8k rpms, so I back it off down to 1.5k again. The BST and my new TM40 do this, but I havent had a chance to properly set the idle yet (mixture screws). When is it best for me to try and get the mix set absolutely right? Its further complicated by the fact its now in the 50s here, so im pretty sure the DR never really warms up.

My DR warms up just fine in the 50's. That's a great temperature for this motor. (50 ain't cold!!)

I have been changing the oil very frequently as its been in a bunch of dirt (and because im in a humid climate so I want to be very careful about condensation building up in the oil), but I think I need to get some kind of oil cooler block setup for the cold temperatures.

Ive read mention of using a cut down welders glove, and ive of course considered metal plates to cover parts of the fins to allow the DR to warm up.

Interesting. How would you put the glove on? I use a velcro strap around the oil cooler guard to keep a piece of cardboard on as a windblock. This seems effective down to the low 20's (now we're getting cold!!) Below 20 my motor stays cold.



What do you think about any/all of the above? It seems to run perfectly jetted straight from ProCycle, while of course I will need to tweak the idle speed- I dont get lean surge, stumble on sudden WOT, or anything- so, im sure my idle woes are all due part to adjustment and part to temperature..


................shu
shu is offline   Reply With Quote
Old 01-08-2013, 02:26 PM   #72618
neo1piv014
ADV in training
 
Joined: Aug 2011
Location: Albuquerque, NM
Oddometer: 619
Quote:
Originally Posted by Mambo Dave View Post
Cool. Thanks man.

I ran Shinko fronts on my last bike, and never had a complaint. We all know the horror stories of 705's coming apart, but more and more that's looking like those were underinflated tires.
That must have been the issue. I have been insanely hard on these tires at points, run them on a fully loaded bike for hundreds of miles a day, thrashed them on twisty mountain roads as well as rough dirt roads, and they don't show any indication that they're going to come apart. For $100 a set, I'm not sure I'll ever get different rubber.
__________________
_________________________
Ride videos
'01 DR650
"The impossible often has a kind of integrity which the merely improbable lacks."
neo1piv014 is offline   Reply With Quote
Old 01-08-2013, 02:32 PM   #72619
dljocky
Studly Adventurer
 
Joined: Dec 2008
Location: Yorktown, Va
Oddometer: 845
Sorry for jumping in on what i guess I should know, but I haven't heard the stories of the Shinko's coming apart. Is this common? I've probably got over 25K miles from several 705's on the rear of my DR with no problems. Were there any recalls or anything?

Thanks



Quote:
Originally Posted by Mambo Dave View Post
Cool. Thanks man.

I ran Shinko fronts on my last bike, and never had a complaint. We all know the horror stories of 705's coming apart, but more and more that's looking like those were underinflated tires.
dljocky is offline   Reply With Quote
Old 01-08-2013, 02:34 PM   #72620
shu
...
 
Joined: Feb 2010
Location: Colorado
Oddometer: 980
Thanks for that, Doug.

I like the looks of this one:



But... right now I'm in 'KLR' mode, and these are more like 'BMW' mode, so I'll just keep using my cardboard wind block. Maybe soon, though.....

............shu
shu is offline   Reply With Quote
Old 01-08-2013, 02:50 PM   #72621
garnaro
MotoBlunderer
 
garnaro's Avatar
 
Joined: Aug 2010
Location: Somewhere in Africa
Oddometer: 245
Quote:
Originally Posted by motolab View Post
nope. this would have helped !
__________________
bugsonmyboard.org
two wheeled wave hunting dispatches
garnaro is offline   Reply With Quote
Old 01-08-2013, 03:07 PM   #72622
Adv Grifter
on the road o'dreams
 
Adv Grifter's Avatar
 
Joined: Jan 2010
Location: Passing ADV Stalkers in California
Oddometer: 6,128
Quote:
Originally Posted by motolab View Post
Technically, BST40 carbs use a cold start enrichment circuit instead of a choke. A choke is closed when an engine is cold and opened when it is warm, whereas a fuel enrichment circuit is opened when the engine is cold and closed when it is warm. A choke works by restricting the air flow, whereas an enrichment circuit works by adding extra fuel. A choke requires a fast idle cam or something akin to it (or you have to hold the throttle open manually), whereas an enrichment circuit adds a little extra air simultaneously with the extra fuel, so the fast idle is already built in.

The pilot jet size should be changed in order to tune 1/16 and 1/8 opening. It should not be changed solely in order to alter the idle mixture.

The fuel screw setting should be the only thing that is changed to affect idle mixture, unless it runs out of range. If it does run out of range, it's likely because the pilot jet is clogged, not because a different size needs to be installed.

Regards,

Derek
Thanks for the clarification Derek. I use the term "Choke" to aid communication, I'm aware the DR has an enrichment circuit. I'm only relating my experience tuning DR650's. I had one that needed NO choke (enrichment) to start ... and if you used choke it would begin a stumble at idle almost right away. So I figured something was too rich somewhere.

I asked Mark Salvisburg and the boys ... they suggested a smaller Pilot (leaner). I did this and problem went away. Bike ran well everywhere else.
Go figure. Turns out the Pilot that was in the CARB was oversize, not stock. Went to stock Pilot Jet, all good. Wonders never cease.

Your warnings about clogged Pilot Jets are well taken. I had this problem with a DRZ400E. I thought I'd got the Pilot Jet clean ... not so. The little tiny holes on the side (I guess) were still clogged up. I ended up putting in a NEW Pilot Jet. End of problem. I would have bet money I'd got that jet clean ... but I didn't!
Adv Grifter is offline   Reply With Quote
Old 01-08-2013, 03:17 PM   #72623
Adv Grifter
on the road o'dreams
 
Adv Grifter's Avatar
 
Joined: Jan 2010
Location: Passing ADV Stalkers in California
Oddometer: 6,128
Quote:
Originally Posted by dljocky View Post
Sorry for jumping in on what i guess I should know, but I haven't heard the stories of the Shinko's coming apart. Is this common? I've probably got over 25K miles from several 705's on the rear of my DR with no problems. Were there any recalls or anything?

Thanks
I think if you search around on the GSpot forum you may find Shinko stories ... every BMW guy on there now hate Shinko and really believe they are junk.
This is good ... keeps the price down for those of us who know better.

A few did come apart on loaded R1200GS's and the like. I don't believe the tire is rated to hold up under a 700 lbs. R1200GS ADV fully loaded with 100 lbs. of luggage, two up, doing 100 mph in 95F heat for hours and hours.

I'm on my 3rd 705 Shinko now and no such issues. But many OEM's have had bad batches of tires. Metzeler certainly did and so has Avon. Avon gave away LOTS of free tires when the Distanzia first came out ... I was the recipient of one. Metzeler? Not so much! (and one reason I still support Avon today)

Shinko are made in Korea by Yokohama. So these dudes are not new at this. If you ever have a problem with a tire ... go to a dealer. Any dealer. Most times you'll get a new tire out of it if what you have is truly a fault.

That said, our lightweight DR is far easier on tires (and everything really) than a GS, Tenere' or KTM 990. But were 150 lbs. to 200 lbs. lighter, makes sense, right?
Adv Grifter is offline   Reply With Quote
Old 01-08-2013, 03:26 PM   #72624
procycle
Beastly Adventurer
 
procycle's Avatar
 
Joined: Jun 2007
Location: Center of the DR650 universe
Oddometer: 2,181
Quote:
Originally Posted by Adv Grifter View Post
A few did come apart on loaded R1200GS's and the like.
Yes, the early 705s had problems dealing with heavy bikes and high speeds. The tires in the problem sizes have been redesigned and carry different part numbers (and higher prices). The update happened about 2 years ago. Since then Shinkos have been getting rave reviews.
__________________
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 01-08-2013, 03:31 PM   #72625
Mambo Dave
Backyard Adventurer
 
Mambo Dave's Avatar
 
Joined: Oct 2011
Location: 11 ft. AMSL
Oddometer: 4,985
Quote:
Originally Posted by Adv Grifter View Post
I think if you search around on the GSpot forum you may find Shinko stories ... every BMW guy on there now hate Shinko and really believe they are junk.
This is good ... keeps the price down for those of us who know better.

A few did come apart on loaded R1200GS's and the like. I don't believe the tire is rated to hold up under a 700 lbs. R1200GS ADV fully loaded with 100 lbs. of luggage, two up, doing 100 mph in 95F heat for hours and hours.

I'm on my 3rd 705 Shinko now and no such issues. But many OEM's have had bad batches of tires. Metzeler certainly did and so has Avon. Avon gave away LOTS of free tires when the Distanzia first came out ... I was the recipient of one. Metzeler? Not so much! (and one reason I still support Avon today)

Shinko are made in Korea by Yokohama. So these dudes are not new at this. If you ever have a problem with a tire ... go to a dealer. Any dealer. Most times you'll get a new tire out of it if what you have is truly a fault.

That said, our lightweight DR is far easier on tires (and everything really) than a GS, Tenere' or KTM 990. But were 150 lbs. to 200 lbs. lighter, makes sense, right?
Well stated for dljocky.

Yeah, it's an armchair quarterback, hindsight is 20/20 kinda thing, but the build of 705's maens large areas (the knobs) that won't flex much, and the in-between areas (the sipes) that have to do all the flexing. Now it just makes sense to not allow the flexes to be in that great of a range or it's like working a specific piece of sheet steel back and forth a ton until it heats up and tears/snaps. The sipes can flex enough for the life of a tire if limited to the range they have to flex, and if kept cool enough. Lower pressures on 705's are probably just fine if you find yourself stuck, or about to be stuck, and need sure-traction to get out of where you're at... but don't then run it hard, or fast, or much at all on the highways home with that super-low pressure once you get out of being stuck.

--------

shu, most manufacturers may recommend that for two-up, or because on some bikes more of the rider's weight and load weight goes over the rear?

Anyway, I come from the bicycle world where the taller and skinnier the tire, the higher pressure it gets. Mountain bike tires are typically used from 17 to 35 psi (lower for traction), beach cruiser tires at about 45 to 55, and road bike tires from 90 to 110 psi (fatter tires gets lower pressures for the same sized wheel / rim, but the lightest and skinniest of tires get the most pressure).

With that tall narrow 21" up front, and with all the braking that happens up there, I'm a fan of just a tad more in the front if I were to choose for this bike. But right now I'd bet they're about even.

Mambo Dave screwed with this post 01-08-2013 at 03:39 PM
Mambo Dave is offline   Reply With Quote
Old 01-08-2013, 05:01 PM   #72626
motolab
Beastly Adventurer
 
motolab's Avatar
 
Joined: Feb 2006
Oddometer: 2,221
Quote:
Originally Posted by Adv Grifter View Post
I asked Mark Salvisburg and the boys ... they suggested a smaller Pilot (leaner). I did this and problem went away. Bike ran well everywhere else.
Go figure. Turns out the Pilot that was in the CARB was oversize, not stock. Went to stock Pilot Jet, all good. Wonders never cease.
I suppose I should have qualified my statement with, "if the stock pilot jet is installed"...

I am curious though, did you try to adjust the idle mixture via the fuel screw and find it was closed or close to it when adjusted properly before asking Marc for advice?

Regards,

Derek
motolab is offline   Reply With Quote
Old 01-08-2013, 06:16 PM   #72627
Carl Childers
Ghost in the Machine
 
Carl Childers's Avatar
 
Joined: Dec 2012
Location: Northern New Mexico
Oddometer: 399
Question Rear Shock Questions.

I'm done with the front forks and now I'm eyeing up the rear shock and wondering how many of you out there have simply replaced the stock spring and changed the oil weight and said "hey this works great it's all I need"?

If I wen't back in later because I didn't like the performance would I still be able to use the same replacement spring with the valving upgrade? I don't mind several tries at the shock as long as I'm not throwing away $$ on the spring that I couldn't use in round two.
Carl Childers is offline   Reply With Quote
Old 01-08-2013, 06:25 PM   #72628
RED CAT
Bumpy Backroader
 
RED CAT's Avatar
 
Joined: Jun 2005
Location: Western Canada
Oddometer: 2,806
Shinko 705s!

Yea, I'm one of the GS1200 guys that blew the tread right off my rear Shinko. First ones out stated 33psi max on the bias tire side wall. So thats what I ran. Have to admit I did hit 200kph a couple of times on our well maintained gravel roads though. Think if I would have run 38psi they would have held up. Heat must have got to them. Shinko 705s do tent to howl after they get worn a little though. I'm sure on a 35hp DR you won't have any problems.
RED CAT is offline   Reply With Quote
Old 01-08-2013, 06:59 PM   #72629
PPCLI-Jim
Gnarly Adventurer
 
PPCLI-Jim's Avatar
 
Joined: Feb 2012
Location: Victoria BC where I ride year round.
Oddometer: 220
I run Shinko's and I agree that the main difference between the DR riders and the GS riders is we tend to go slower with less weight. Either one will make a huge difference in the tires life combining the 2 makes for an extended life. Before i get jumped on by the nay sayers how many times has a DR really been run flat out on a highway the same way a GS has been with or without saddle bags and top box?.
__________________
I'm not saying to kill all the stupid people . .. Just remove the warning labels and let nature run it's course


http://www.youtube.com/user/spudhead/videos?view=0 my youtube channel
PPCLI-Jim is offline   Reply With Quote
Old 01-08-2013, 07:09 PM   #72630
Mambo Dave
Backyard Adventurer
 
Mambo Dave's Avatar
 
Joined: Oct 2011
Location: 11 ft. AMSL
Oddometer: 4,985
Quote:
Originally Posted by PPCLI-Jim View Post
I run Shinko's and I agree that the main difference between the DR riders and the GS riders is we tend to go slower with less weight. Either one will make a huge difference in the tires life combining the 2 makes for an extended life. Before i get jumped on by the nay sayers how many times has a DR really been run flat out on a highway the same way a GS has been with or without saddle bags and top box?.
Probably put 4,000 or more miles of 75 to 90 MPH (true, not indicated) on my DR650 and the Shinko 705's I have on there now before I resigned from the job that required that commute.

I have a 705 on the rear of my home-built adventure bike (Ninja 500) and that's been to 100 MPH a few times, and did the +1000 trips of highway miles (mostly, with some dirt) just fine.

Now that's not 100 MPH, but I don't think I've ever seen a GS tooling along at 100... ever... either.
Mambo Dave 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 01:00 AM.


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