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Old 01-15-2013, 08:13 AM   #72871
blackcap
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Location: Wollongong aka stink-town, Australia
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Quote:
Originally Posted by Adv Grifter View Post
Very well done Video!
Is that your work? Or from another source? And of course I have to ask ...
do you know what Camera was used? Great image quality throughout!
Some Hellish mud there mate and some knarly tracks for the DR650.
Good going.
yeah all original from me in the past 12 months or so. still learning a lot about movies. the on bike camer is a VIO POV HD, the roadside is mostly a Canon EOS 5D and then there is a couple of shots from some point and shoot cameras (theres been a couple now after a sacrifice had to be made to the gods of soul capturing devices). all the tracks so far in the movie have been pretty easy with a couple of tough sections. the good mud will be in the next installment if i ever get round to finishing it.
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Old 01-15-2013, 09:19 AM   #72872
motolab
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Quote:
Originally Posted by Anklyne View Post
Previously the bike seemed to labour when giving it throttle while cruising, which I had just put down to the BST carb.
It is likely to either be dirty, have worn out/damaged parts, or was/is just not jetted correctly.

Regards,

Derek
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Old 01-15-2013, 09:21 AM   #72873
motolab
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Quote:
Originally Posted by Rusty Rocket View Post
Try laying the bike on it's side for 10 seconds, pick it up and see if it starts. If so, I suspect it is the float assy o-rings. That was my trouble twice in 7 years of owning mine. (so far)

parts 15 & 16:

http://www.ronayers.com/Fiche/TypeID...oup/CARBURETOR
Do you still have the vacuum operated petcock in place?

Regards,

Derek
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Old 01-15-2013, 09:40 AM   #72874
Rusty Rocket
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Quote:
Originally Posted by motolab View Post
Do you still have the vacuum operated petcock in place?

Regards,

Derek
Raptor Petcock on my bike
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Old 01-15-2013, 10:02 AM   #72875
motolab
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Originally Posted by Rusty Rocket View Post
Raptor Petcock on my bike
During the laying the bike on its side procedure, do you turn the petcock off?

Regards,

Derek
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Old 01-15-2013, 10:59 AM   #72876
neo1piv014
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Searching this thread for "clip position" didn't seem to yield anything on the first several pages, so I thought I'd ask.
I just got the non-USA OEM needle and clip for my carb after having a bent needle from the PO, and I'm not sure what clip position to use. So here's the basic run down of my bike:
- Lives around 5000 ft above sea level
- Airbox mod
- Stock exhaust
- K&N air filter
- 12000 miles (for whatever that matters).

Anyone else running a similar setup that can tell me what clip position and possibly jet size that I should be using? I'm not a tuner in any way, and I don't have access to a professionally setup DR650, so I'm not sure what all I should be looking for.
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Old 01-15-2013, 11:22 AM   #72877
motolab
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Quote:
Originally Posted by neo1piv014 View Post
Searching this thread for "clip position" didn't seem to yield anything on the first several pages, so I thought I'd ask.
I just got the non-USA OEM needle and clip for my carb after having a bent needle from the PO, and I'm not sure what clip position to use. So here's the basic run down of my bike:
- Lives around 5000 ft above sea level
- Airbox mod
- Stock exhaust
- K&N air filter
- 12000 miles (for whatever that matters).

Anyone else running a similar setup that can tell me what clip position and possibly jet size that I should be using? I'm not a tuner in any way, and I don't have access to a professionally setup DR650, so I'm not sure what all I should be looking for.
The standard clip position is in the 3rd groove.

Correspondences on CV carbs:

Low rpm all throttle positions: float height, needle base diameter, emulsion tube outlet size
WOT operation overall: main jet
WOT operation between HP peak and red line: main air corrector
WOT operation below red line: jet needle shape
1/4 throttle opening: jet needle clip position
1/8 throttle opening: pilot jet size
1/16 throttle opening: pilot jet size
idle: mixture screw adjustment

Put some tape on the throttle housing and the edge of the grip. Mark zero throttle with a sharpie. This is best done with the engine idling, so you can tell when the slack in the cable has just been taken up. Turn off the engine and mark wide open. Now take a tape measure (metric works best in my opinion) and measure the length of the arc. Put a mark at the mid point. Duplicate this procedure to mark the mid-point between here and zero throttle opening to get 1/4 open. Repeat for 1/8 and 1/16 openings. Don't have an accident trying to look at the marks while riding. If you do, I'm not responsible!

Tune from the top down, i.e. get the right main jet in it for proper wide open throttle operation, then set the needle clip position for correct operation at 1/4 opening, then install the correct pilot jet for proper operation at 1/16-1/8 opening. Readjust the idle mixture after every jetting change. Without the ability to dyno with 5-gas analysis, I would go progressively leaner until there was just the very beginning of a discernible misbehavior. On the main jet, I would then go 2-3 sizes richer. On the needle clip, I would then adjust 1-2 positions richer. On the pilot jet, I would install 1-2 sizes larger. Please do bear in mind that if you have high compression, poor exhaust flow, low octane fuel, and/or ignition timing that is either correct or overadvanced for the correct mixture, tuning via this method could cause detonation and therefore engine damage.

Regards,

Derek
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Old 01-15-2013, 12:11 PM   #72878
dopra
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Hello DR riders, I bought DR650SE, and I will do some changes, if You like You can see what I do :)

http://www.advrider.com/forums/showthread.php?t=855584
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Old 01-15-2013, 01:37 PM   #72879
ER70S-2
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Hi Dopra:
Welcome from USA and I'll be following along on your rebuild thread.
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Old 01-15-2013, 01:58 PM   #72880
Rusty Rocket
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Quote:
Originally Posted by motolab View Post
During the laying the bike on its side procedure, do you turn the petcock off?

Regards,

Derek
Yes
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Old 01-15-2013, 02:18 PM   #72881
motolab
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Quote:
Originally Posted by Rusty Rocket View Post
Yes
Good to point out. Otherwise, if the petcock is in the pri position (for a stock petcock), or in the on position (for the Raptor petcock), laying the bike on its side will simply mean a bunch of fuel on the ground (the float valve won't close very well with the bike on its side).

Regards,

Derek
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Old 01-15-2013, 04:45 PM   #72882
procycle
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Quote:
Originally Posted by neo1piv014 View Post
Searching this thread for "clip position" didn't seem to yield anything on the first several pages, so I thought I'd ask.
I just got the non-USA OEM needle and clip for my carb...

- Airbox mod...

Anyone else running a similar setup that can tell me what clip position and possibly jet size that I should be using? I'm not a tuner in any way, and I don't have access to a professionally setup DR650, so I'm not sure what all I should be looking for.
I don't think anyone has successfully used an OEM needle (USA or otherwise) with a fully modified airbox (top cut out).
A de-snorkeled airbox - yes, an airbox with the top cut out - no.
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Old 01-16-2013, 03:14 AM   #72883
Anklyne
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Quote:
Originally Posted by motolab View Post
It is likely to either be dirty, have worn out/damaged parts, or was/is just not jetted correctly.

Regards,

Derek
Thanks for the tip.
It has a Procycle extended idle mixture screw, but apart from that, I don't believe the carby has been messed with (as I said, the airbox is unmodifed). That said, I'll pull it apart and give it a clean, inspect all the bits for wear and take note of the jetting.

Cheers.
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Old 01-16-2013, 07:25 AM   #72884
sin3kal
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Not sure if this is the right place for this question but wasn't getting too much love on the DDR site since my bike is a pre 96. Anywho, I have a 93 dr650 that broke the knuckle that attaches to the kickstart shaft (yup it's one of those bikes). Not much in the way of kickstart levers for this bike specifically related to the dr650 that don't cost an arm, a leg, and a wallet. Was wondering if anyone knew if any of the kickstart levers from a dr250 or 200 have the same spline count and diameter on their mounting knuckles.
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Old 01-16-2013, 07:27 AM   #72885
Rob.G
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Quote:
Originally Posted by sin3kal View Post
Not sure if this is the right place for this question but wasn't getting too much love on the DDR site since my bike is a pre 96. Anywho, I have a 93 dr650 that broke the knuckle that attaches to the kickstart shaft (yup it's one of those bikes). Not much in the way of kickstart levers for this bike specifically related to the dr650 that don't cost an arm, a leg, and a wallet. Was wondering if anyone knew if any of the kickstart levers from a dr250 or 200 have the same spline count and diameter on their mounting knuckles.
Go here: http://www.advrider.com/forums/showthread.php?t=61568

It's the pre-96 DR650S thread.

Rob
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