JD jetting on a DRZ - Chicagoland Sportbikes
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post #1 of 19 (permalink) Old 05-13-2011, 11:03 PM Thread Starter
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JD jetting on a DRZ

How many turns , + - a little , should the mixture screw be out ?
Stock carb , 3x3 , full system .

I have it at about two turns out, but it seems to have a little surge in the middle .
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post #2 of 19 (permalink) Old 05-13-2011, 11:52 PM

 
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surge in mid range would have me raising the slide needle.
You may need a very thin washer under the clip or needle top adjustable clips are a thing of the past on OEM carbs

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post #3 of 19 (permalink) Old 05-14-2011, 12:56 PM Thread Starter
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Quote:
Originally Posted by resurrection View Post
surge in mid range would have me raising the slide needle.
You may need a very thin washer under the clip or needle top adjustable clips are a thing of the past on OEM carbs
I thought I did this , but not sure.
The JD kit came with all the goodies and I called to double check on a couple of things.
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post #4 of 19 (permalink) Old 05-14-2011, 01:24 PM
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Is the mixture screw on the air or fuel side?

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post #5 of 19 (permalink) Old 05-14-2011, 02:08 PM Thread Starter
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Is the mixture screw on the air or fuel side?
underside of the carb.
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post #6 of 19 (permalink) Old 05-14-2011, 05:56 PM
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mixture screw is on the fuel side.
thumpertalk is the best resource for best DRZ jet/needle/screw settings.
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post #7 of 19 (permalink) Old 05-14-2011, 06:13 PM
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Describe this surging a little more, and when does it happen




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post #8 of 19 (permalink) Old 05-14-2011, 07:24 PM
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post #9 of 19 (permalink) Old 05-14-2011, 08:21 PM
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Typical forum snob. Try his settings and see how it runs




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post #10 of 19 (permalink) Old 05-14-2011, 09:07 PM
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someone starts a new DRZ jetting thread on thumpertalk every day, so I'm sure Eddie gets sick of seeing the same questions over and over, and can tend to come across a little harsh. dude knows his shit though when it comes to the DRZ.
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post #11 of 19 (permalink) Old 05-14-2011, 11:26 PM Thread Starter
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I will have to recheck my settings . I have all the same mods , but used a 160 main .
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post #12 of 19 (permalink) Old 05-15-2011, 02:02 PM
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Quote:
Originally Posted by BH View Post
someone starts a new DRZ jetting thread on thumpertalk every day, so I'm sure Eddie gets sick of seeing the same questions over and over, and can tend to come across a little harsh. dude knows his shit though when it comes to the DRZ.
If BH gives this guy props on DRZ stuff, that is saying a ton - Bill built my DRZ from the ground up and knows more about them then most people know about their own jobs - He knew every bolt on that bike and is 100% the reason I was comfortable with buying a 10 year old Track Bike to learn on from him

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post #13 of 19 (permalink) Old 05-15-2011, 03:17 PM

 
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Hmm is that clip slot 3 or 4??

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GOOD - CHEAP - FAST
You can pick any two
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post #14 of 19 (permalink) Old 05-15-2011, 03:23 PM
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yeah, i followed his instruction and its werks really good. (eddy from tt)
hope this helps

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post #15 of 19 (permalink) Old 05-18-2011, 11:39 PM Thread Starter
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Quote:
Originally Posted by resurrection View Post
Hmm is that clip slot 3 or 4??
I am going to check on this . I called JD and talked to them to double check everything during the install.
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post #16 of 19 (permalink) Old 05-18-2011, 11:49 PM

 
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These clip slots are funny do you count up or down? Do count the first one as top and the second as one down or is the first slot #1????

anything past about 1/8 throttle falls into the slide needle range.

As soon as the slide opens an easier path for fuel the smaller path ways become a moot point.

The pilot screw helps the idle jet fine tune while the slide is down.That's all, once the slide opens the main fuel takes that path.

Good luck.
And always try to relate your carb issue to a spot in the rotation of the throttle while carb tuning.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #17 of 19 (permalink) Old 05-19-2011, 06:52 AM
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Quote:
Originally Posted by resurrection View Post
These clip slots are funny do you count up or down? Do count the first one as top and the second as one down or is the first slot #1????

anything past about 1/8 throttle falls into the slide needle range.

As soon as the slide opens an easier path for fuel the smaller path ways become a moot point.

The pilot screw helps the idle jet fine tune while the slide is down.That's all, once the slide opens the main fuel takes that path.

Good luck.
And always try to relate your carb issue to a spot in the rotation of the throttle while carb tuning.

Spot on! Good post




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Government's view of the economy could be summed up in a few short phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.

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post #18 of 19 (permalink) Old 05-23-2011, 11:00 PM Thread Starter
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Turned the fuel mixture screw out a little more , things got better . I will still go through the carb to double check everything .
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post #19 of 19 (permalink) Old 05-23-2011, 11:02 PM

 
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that crazy screw will change every day.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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