DR750 & DR800 owners thread - Page 830

Resi · 02-23-2012, 01:58 PM

ReaperX, dripping gas when the bike on the side stand: Malfunction on needle valve, blocked oder worn, or o-seal defect. Did you ultrasonic clean the carbs? Sounds that one of the tiny pilot holes or so is blocked.
I disassemble the carbs, clean them with degraser, lay 'em about one day or two in denaturaded alcohol.
After that I'll blow them dry with compressed air and check each hole gently with a broach.
I use new seals, and change the worn parts...

On some carbs I had the engine stalling when decelerationing, caused by heavy worn nozzle needle...

Bluesman, I do remember, for sure
I left the compression at stock (for the moment... hrrhrr), maybe the next pistons get slightly higher compression ratio.
I want to get the engine running... for the next step

Cheers,
Lars

bluesman · 02-23-2012, 02:06 PM

Thank you!
I am looking for raising compression because I had chance to run my DR on 92 (I found place, where owners of collectable old cars have special place to fill up) and I was amazed how better it ran.

What's worse...my VTR1000F runs on 92 better and use less petrol than 95.

Do not know why. I guessed it is low compression rate of both motors.

Resi · 02-23-2012, 02:29 PM

Mait, I didn't found them UK-guys..
I met some guys on the 2010 Intermot in Cologne,Germany.
We built a couple of pistons at my spec, I reamed one barrel last week (I mentioned allready, I think),
and get the whole bunch assembled...

Cheers,
Lars

ReaperX · 02-23-2012, 02:58 PM

Quote:

Originally Posted by Resi

ReaperX, dripping gas when the bike on the side stand: Malfunction on needle valve, blocked oder worn, or o-seal defect. Did you ultrasonic clean the carbs? Sounds that one of the tiny pilot holes or so is blocked.
I disassemble the carbs, clean them with degraser, lay 'em about one day or two in denaturaded alcohol.
After that I'll blow them dry with compressed air and check each hole gently with a broach.
I use new seals, and change the worn parts...

On some carbs I had the engine stalling when decelerationing, caused by heavy worn nozzle needle...

Bluesman, I do remember, for sure
I left the compression at stock (for the moment... hrrhrr), maybe the next pistons get slightly higher compression ratio.
I want to get the engine running... for the next step

Cheers,
Lars

Thx Resi I will give that a go, do you buy the parts from wemoto oh from where?
Many Thx

MCmad · 02-23-2012, 10:54 PM

Hi Guys have begun to update owner registra on front page, any other takers ?

KTM has broken down but DR still going, just thought you guys might enjoy knowing that

bluesman · 02-23-2012, 11:44 PM

I don't want to gloat because it is your KTM but....

What happened?

Resi · 02-24-2012, 12:15 AM

Quote:

Originally Posted by ReaperX

Thx Resi I will give that a go, do you buy the parts from wemoto oh from where?
Many Thx

Mate, no, we've got in germany some suppliers, too.
But I think wemoto makes good prices for this stuff.
When you buy these tiny o-seals at Suzuki, you'll pay a lot of bucks...
If you find out that the needles and/or nozzles are worn, drop me a PN ;)

Cheers,
Lars

MCmad · 02-24-2012, 02:14 AM

Quote:

Originally Posted by bluesman

I don't want to gloat because it is your KTM but....

What happened?

Don't really think its a KTM issue as such, ran fuel low about 20Km into low fuel light (sometimes I go up to 60Km) bike started to miss as if running out of gas when heavy throttle was used so I presume it was low fuel, refuel expecting problem to go away but it only got worse, bike will run on light throttles but completely dies on heavier usage, which was fun on the way home as at about 105kph on the motorway it would die and slow to about 50kph before regaining fuel and taking off again (a bit dangerous in traffic)

I'm thinking its water in the Carb after running low fuel?

Haven't been bothered as after my shoulder injury, have found KTM hard on me were as DR gives me an easier time of things (especially off road)

So no biggy that KTM is down for now

and One up for the DR

robmoto · 02-24-2012, 02:31 AM

Mark maybe just a blocked filter .

MCmad · 02-24-2012, 02:36 AM

Quote:

Originally Posted by robmoto

Mark maybe just a blocked filter .

Could be Rob

As I say I don't care at the mo, polished the girl up and left in garage as am happy to Ride DR for a while

PS, its a major job to get to all that stuff and since I'm one armed will leave for now, will probable send to shop before next big road ride

bluesman · 02-24-2012, 03:10 AM

800rider,
What you describes looks like problem one of 990 owners I know had.
It was something to do with filter and pressure regulator. Cleaning mainly.
He developed solution to make it easier by (if memory serves me right) moving pressure regulator to outside of tank or something like it.

Here is photos

disregarding Russian text

http://kickstarter.org/forum/index.p...7392#msg107392

http://kickstarter.org/forum/index.p...7393#msg107393

http://kickstarter.org/forum/index.p...7395#msg107395

http://kickstarter.org/forum/index.p...7396#msg107396

And filter from Chrysler Voyager 3 liter (mitsubishi motor)

http://kickstarter.org/forum/index.p...99681#msg99681

He says that if engine get's really hot and petrol is let say not perfect the flow rate of original filters combo kinda s...s and bike start to behave as you described. So he made this mod.

robmoto · 02-24-2012, 03:49 AM

Running low on fuel allows a lot of fuel sloshing and moving arround and stirs up all the crud, and allso refueling with a low tank stirs it all up again, its amazing some times when you clean the tanks out and wonder where did all this crap come from .
I thought I bought clean fuel

.

kuba_astr · 02-24-2012, 06:55 AM

Hello!

I'm Kuba and I'm from Poland, I couldn't find any "Hello" thread on this forum. I was always a reader, now I wish to join this very interesting 'population'

I've got the biggest thumper in the world as I might say all in this thread :)

Here's my BIG, actually this forum was the reason to build my own DR BIG....

A lot of work but it runs great!!!!!!!!!

AJ.. · 02-24-2012, 07:18 AM

here's ny bike at presant with the upper crashbar just installed

Ladder106 · 02-24-2012, 08:47 AM

Kuba astr

Welcome...what a great first post and nicely done BIG. If there were more than a handful in the US, I'd want one just like that to compliment the one I have.

Please give us list of what you've done. The side panels/rear fender/silencer all fit together very well.

02-23-2012, 01:58 PM	#12436
Resi Gnarly Adventurer Joined: Jul 2011 Location: Nassau Area Oddometer: 198	ReaperX, dripping gas when the bike on the side stand: Malfunction on needle valve, blocked oder worn, or o-seal defect. Did you ultrasonic clean the carbs? Sounds that one of the tiny pilot holes or so is blocked. I disassemble the carbs, clean them with degraser, lay 'em about one day or two in denaturaded alcohol. After that I'll blow them dry with compressed air and check each hole gently with a broach. I use new seals, and change the worn parts... On some carbs I had the engine stalling when decelerationing, caused by heavy worn nozzle needle... Bluesman, I do remember, for sure I left the compression at stock (for the moment... hrrhrr), maybe the next pistons get slightly higher compression ratio. I want to get the engine running... for the next step Cheers, Lars Resi screwed with this post 02-23-2012 at 02:04 PM

02-24-2012, 02:31 AM	#12444
robmoto Beastly Adventurer Joined: Feb 2009 Location: Bathurst Australia Oddometer: 3,331	Mark maybe just a blocked filter . __________________ I ride alone and not a KTM in sight .

02-24-2012, 03:49 AM	#12447
robmoto Beastly Adventurer Joined: Feb 2009 Location: Bathurst Australia Oddometer: 3,331	Running low on fuel allows a lot of fuel sloshing and moving arround and stirs up all the crud, and allso refueling with a low tank stirs it all up again, its amazing some times when you clean the tanks out and wonder where did all this crap come from . I thought I bought clean fuel . __________________ I ride alone and not a KTM in sight .

02-24-2012, 06:55 AM	#12448
kuba_astr n00b Joined: Feb 2012 Oddometer: 8	Hello! I'm Kuba and I'm from Poland, I couldn't find any "Hello" thread on this forum. I was always a reader, now I wish to join this very interesting 'population' I've got the biggest thumper in the world as I might say all in this thread :) Here's my BIG, actually this forum was the reason to build my own DR BIG.... A lot of work but it runs great!!!!!!!!! __________________ SuzukiDR 800 SE kuba_astr screwed with this post 02-29-2012 at 04:02 AM

02-24-2012, 07:18 AM	#12449
AJ.. Beastly Adventurer Joined: Jan 2007 Location: Singapore Oddometer: 1,321	here's ny bike at presant with the upper crashbar just installed __________________ HONDA XRV750-02(woot-woot)BMW R1100GS-'98() KTM LC400SM '97()XR650R-02(For Dirt) (Hyundai Tucson-(For Family) http://www.facebook.com/pages/AJs-fr...7491373?v=wall

02-23-2012, 02:06 PM	#12437
bluesman Beastly Adventurer Joined: Feb 2007 Location: Hoegaarden, Belgium Oddometer: 3,029	Thank you! I am looking for raising compression because I had chance to run my DR on 92 (I found place, where owners of collectable old cars have special place to fill up) and I was amazed how better it ran. What's worse...my VTR1000F runs on 92 better and use less petrol than 95. Do not know why. I guessed it is low compression rate of both motors.

02-23-2012, 02:29 PM	#12438
Resi Gnarly Adventurer Joined: Jul 2011 Location: Nassau Area Oddometer: 198	Mait, I didn't found them UK-guys.. I met some guys on the 2010 Intermot in Cologne,Germany. We built a couple of pistons at my spec, I reamed one barrel last week (I mentioned allready, I think), and get the whole bunch assembled... Cheers, Lars

02-23-2012, 10:54 PM	#12440
MCmad ^OP Banned Joined: Jun 2008 Oddometer: 7,842	Hi Guys have begun to update owner registra on front page, any other takers ? KTM has broken down but DR still going, just thought you guys might enjoy knowing that

02-23-2012, 11:44 PM	#12441
bluesman Beastly Adventurer Joined: Feb 2007 Location: Hoegaarden, Belgium Oddometer: 3,029	I don't want to gloat because it is your KTM but.... What happened?

02-24-2012, 03:10 AM	#12446
bluesman Beastly Adventurer Joined: Feb 2007 Location: Hoegaarden, Belgium Oddometer: 3,029	800rider, What you describes looks like problem one of 990 owners I know had. It was something to do with filter and pressure regulator. Cleaning mainly. He developed solution to make it easier by (if memory serves me right) moving pressure regulator to outside of tank or something like it. Here is photos disregarding Russian text http://kickstarter.org/forum/index.p...7392#msg107392 http://kickstarter.org/forum/index.p...7393#msg107393 http://kickstarter.org/forum/index.p...7395#msg107395 http://kickstarter.org/forum/index.p...7396#msg107396 And filter from Chrysler Voyager 3 liter (mitsubishi motor) http://kickstarter.org/forum/index.p...99681#msg99681 He says that if engine get's really hot and petrol is let say not perfect the flow rate of original filters combo kinda s...s and bike start to behave as you described. So he made this mod.

02-24-2012, 08:47 AM	#12450
Ladder106 It's a short cut, really Joined: Jan 2005 Location: Davis, CA Oddometer: 4,302	Nicely done Kuba astr Welcome...what a great first post and nicely done BIG. If there were more than a handful in the US, I'd want one just like that to compliment the one I have. Please give us list of what you've done. The side panels/rear fender/silencer all fit together very well.

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