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Old 12-19-2012, 09:51 AM   #1186
motolab
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Quote:
Originally Posted by blackcap View Post
hi all, just posted this ove in the DR650 thread but someone reminded me this is probably a good place to get some exposure too. ive got a unifilter installed on the vent hose that goes to the top of the carb but it looks like a few hundred kms of the talcum powder that makes up the logging road surfaces in borneo just went straight through the unifilter and into the carb. does anyone run anything other than the unifilter on their carb vent? as far as im concerned its useless for anything other than stopping sand.
I completely disagree with your assessment of the UNI, but here is an alternative strategy: http://advrider.com/forums/showpost....postcount=1087.

Regards,

Derek
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Old 12-20-2012, 03:52 AM   #1187
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Quote:
Originally Posted by motolab View Post
I completely disagree with your assessment of the UNI, but here is an alternative strategy: http://advrider.com/forums/showpost....postcount=1087.

Regards,

Derek
that looks like it could work in tandem with my intake filter strategy. nice and simple and easily repaired with stuff i can find here. just a though, what might the consequences be of using a tee piece to connect the carb vent line to the other small hose that terminates at the airbox behind the primary intake filter? good idea or is that asking for trouble by essentially linking the two air circuits and messing up all the required pressure differentials?
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Old 12-20-2012, 01:32 PM   #1188
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Quote:
Originally Posted by blackcap View Post
that looks like it could work in tandem with my intake filter strategy. nice and simple and easily repaired with stuff i can find here. just a though, what might the consequences be of using a tee piece to connect the carb vent line to the other small hose that terminates at the airbox behind the primary intake filter? good idea or is that asking for trouble by essentially linking the two air circuits and messing up all the required pressure differentials?
I would not link the underside of the diaphragm to the bowl vent (if I'm understanding which hoses you're referring to correctly).

Regards,

Derek
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Old 12-20-2012, 01:46 PM   #1189
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I believe he is talking about what on a DR650 is the breather tube from the engine case that enters the back of the airbox "inside" the filter. No, this would NOT be a good idea to connect these two hoses!
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Old 12-21-2012, 12:07 AM   #1190
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Quote:
Originally Posted by motolab View Post
I would not link the underside of the diaphragm to the bowl vent (if I'm understanding which hoses you're referring to correctly).

Regards,

Derek
had a feeling it wouldnt end well, just thought id check with the pros. would be nice to eliminate one more filter.
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Old 12-24-2012, 04:05 PM   #1191
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Hi there,

this thread was very interesting for me to dismount a clean my carb.
But I lost on O-Ring and another one need to be change. My KTM garage told me they can't order me these. can anybody give me the sizes?

It's the needle valve O-Ring (probably Di=7 and d=1.5) and the Fuel/air mixture O.Ring (maybe Di=3 d=1)???

Thanks really apreciate your help
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Old 12-24-2012, 06:15 PM   #1192
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Originally Posted by zimi View Post
Hi there,

this thread was very interesting for me to dismount a clean my carb.
But I lost on O-Ring and another one need to be change. My KTM garage told me they can't order me these. can anybody give me the sizes?

It's the needle valve O-Ring (probably Di=7 and d=1.5) and the Fuel/air mixture O.Ring (maybe Di=3 d=1)???

Thanks really apreciate your help
You can use these Suzuki part numbers:

13374-35C00 needle seat o-ring
13295-29900 fuel screw o-ring

Are you sure the fuel screw o-ring is not stuck to the floor of the fuel screw well?

Regards,

Derek
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Old 12-25-2012, 02:07 AM   #1193
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Thanks Derek for your very fast answer!!!

No the O-ring is not in the carb anymore
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Old 12-25-2012, 10:49 AM   #1194
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Quote:
Originally Posted by zimi View Post
Thanks Derek for your very fast answer!!!
You're welcome.
Quote:
No the O-ring is not in the carb anymore
Did you find the washer?

Regards,

Derek
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Old 12-27-2012, 03:22 AM   #1195
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yes I have the washer. no problem on this side, thanks!
I couldn't get the O-ring yet, everthing is closed for the christmas holidays..
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Old 01-05-2013, 05:56 PM   #1196
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cleaning Day

just finished up cleaning my 2009 Dr 650 Carb. 26XXX miles of mixed use. Lots of dirt under the diaphram. After a healthy cleaning, new o rings and float needle from procycle, she is purring like new. I will be adding some additional filtering to the vents. Thanks for the great (How To) write up.
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Old 01-05-2013, 06:02 PM   #1197
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Originally Posted by toondebt11 View Post
just finished up cleaning my 2009 Dr 650 Carb. 26XXX miles of mixed use. Lots of dirt under the diaphram. After a healthy cleaning, new o rings and float needle from procycle, she is purring like new. I will be adding some additional filtering to the vents. Thanks for the great (How To) write up.
Did you inspect the slide guide and emulsion tube for wear?

Regards,

Derek
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Old 01-05-2013, 06:26 PM   #1198
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I cleaned everything very well and just did a visual inspection. I did not do any measurements. The needle had very minimal wear beginning. other than that, everything looked good.
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Old 01-05-2013, 07:50 PM   #1199
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Originally Posted by toondebt11 View Post
I cleaned everything very well and just did a visual inspection. I did not do any measurements. The needle had very minimal wear beginning. other than that, everything looked good.
If you had to guess, how deep do you think the depressions in the bottom corners of the slide guide/concentric to the bore are? (See http://www.moto-lab.com/gallery/view?itemid=298, http://www.moto-lab.com/gallery/view?itemid=299, http://www.moto-lab.com/gallery/view?itemid=300, and http://www.moto-lab.com/gallery/view?itemid=301 {click images for a high-res view}).

What color were the deposits under the diaphragm?

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Derek
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Old 01-05-2013, 08:34 PM   #1200
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well if I had known then what I know now, I could tell you more. At least I know what to look for the next time I have it apart. For now, it's running smooth and strong. Thanks for the education.
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