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Old 01-16-2013, 11:16 AM   #72901
motolab
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Quote:
Originally Posted by procycle View Post
I'm pretty sure I said show us not tell us.

.
I'm not sure what you mean. Are you saying that someone owes you a CV carburetor tuning how-to video?

Regards,

Derek
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Old 01-16-2013, 11:50 AM   #72902
LucasLeader
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Chain Guide

My chain guide disappeared this morning on the way to work. I haven't thrashed the DR off road for a while so I'm not sure what happened. Does anyone that has upgraded theirs have a stock piece in decent condition they would like to sell?
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Old 01-16-2013, 12:28 PM   #72903
Rob.G
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Intiminators

Shameless Plug: I just posted a set of Intiminators for sale in the Flea Market. Nothing wrong, just switching to Gold Valves as my riding skills have changed.

Rob
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Old 01-16-2013, 12:30 PM   #72904
TinkerinWstuff
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so much humor in this thread today
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Old 01-16-2013, 01:51 PM   #72905
procycle
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Quote:
Originally Posted by motolab View Post
I'm not sure what you mean. Are you saying that someone owes you a CV carburetor tuning how-to video?
No, I was trying to (in a polite way) say "put up or shut up"
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Old 01-16-2013, 01:52 PM   #72906
motolab
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Quote:
Originally Posted by procycle View Post
No, I was trying to (in a polite way) say "put up or shut up"
I don't follow.

Regards,

Derek
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Old 01-16-2013, 02:33 PM   #72907
TinkerinWstuff
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Quote:
Originally Posted by motolab View Post
I don't follow.

Regards,

Derek

He's saying theory is all well and good but none of us are aware of anyone who's used the stock needle IN CV carb WITH modified airbox AND achieved optimum results.

let's see where it's been done successfully. Many of us here are well familiar with the practice of how to tune - especially procycle.
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Old 01-16-2013, 03:14 PM   #72908
procycle
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Quote:
Originally Posted by motolab View Post
I don't follow.
You keep saying how much better the OEM needle will work with an open airbox than the DynoJet needle. But you have no hands on experience tuning a DR650 with an open airbox.

The problem with the OEM needle and open airbox is that the needle will have to be raised about 4-6mm to have any hope of running well enough to make the bike rideable in the mid-range. Raising the needle that much causes the beginning of the taper to rise out of the needle jet way too early causing a low end bog.

In the real world the only viable solution available is the DynoJet needle.

I'd like to see you show that there are other options and I've even offered to foot the bill to give you that chance.
I'd also like to stop hearing about how much better OEM needle is until there is some proof to back it up.
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Old 01-16-2013, 03:20 PM   #72909
motolab
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Quote:
Originally Posted by TinkerinWstuff View Post
He's saying theory is all well and good but none of us are aware of anyone who's used the stock needle IN CV carb WITH modified airbox AND achieved optimum results.
He can speak for himself.

If, however, you yourself are saying that none of you (who?) are aware of anyone who has used the stock needle with a modified airbox and achieved optimum results, I agree that with the USA needle, the possibility is slim (no need to shout BTW). If you are asserting that no one has used the non-USA stock needle with a modified airbox and achieved optimum results, then that's either because no one has tried, because whoever did try doesn't know how to tune, or because there is a better needle profile yet.
Quote:
let's see where it's been done successfully.
Sure, let's!

The point I have been trying to make is that, based on the chart I have posted several times now, the results when using the DJ needle can hardly be called optimal, and that experience with many different needle profiles (including many of my own) on many different motorcycles has shown me that a profile such as the DJ needle has is likely to produce a wonky CO trace such as the DJ needle does in fact in practice produce. The same experience has shown me that a shape more like the non-USA adjustable needle has will in fact flatten the CO trace vs. what a needle with a shape like the DJ produces. I suppose there is always the possibility of an anomaly, but I can't see how the non-USA adjustable needle would not be an improvement over the DJ.
Quote:
Many of us here are well familiar with the practice of how to tune - especially procycle.
I think that depends on the definition of the phrase "familiar with the practice of how to tune". I'm not saying that to be rude. It's just that there are different levels of experience and different levels of tuning (some of which are equipment-dependent). Unfortunately there's no way around that.

Regards,

Derek
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Old 01-16-2013, 03:25 PM   #72910
barko1
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Quote:
Originally Posted by motolab View Post
I'm not sure what you mean. Are you saying that someone owes you a CV carburetor tuning how-to video?

Regards,

Derek
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Old 01-16-2013, 03:31 PM   #72911
TinkerinWstuff
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New topic anyone?

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Old 01-16-2013, 03:41 PM   #72912
Carl Childers
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Header Grind

My GSXR can showed up today so I pulled the stock exhaust off to get ready for the install and one of the first things I did was dremel out some of the weld out of the header pipe. I've gone from a trapazoidal opening to a round hole now that looks pretty good in comparison. I want to get the optimal opening without taking too much out so I was wondering if anyone could post a nice close up picture of the right amount of metal removal on this pipe?
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Old 01-16-2013, 03:45 PM   #72913
JTB488
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Mmmm, more power!!
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Old 01-16-2013, 03:51 PM   #72914
TinkerinWstuff
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Quote:
Originally Posted by Carl Childers View Post
My GSXR can showed up today so I pulled the stock exhaust off to get ready for the install and one of the first things I did was dremel out some of the weld out of the header pipe. I've gone from a trapazoidal opening to a round hole now that looks pretty good in comparison. I want to get the optimal opening without taking too much out so I was wondering if anyone could post a nice close up picture of the right amount of metal removal on this pipe?
here's mine



before - mine wasn't as ugly as some I've seen

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Old 01-16-2013, 04:10 PM   #72915
godaddygo
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Head light off-on switch

I would like to put a on-off switch for the headlight. Would still like it to work on high beam for flashing.
I think the drawing says the white is for low beam...other two are yellow(high) and black/white I am thinking is the ground? I am thinking the switch on the white? But I am a electrical moron...
Chris
NorthernI daho
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