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Message started by dasch on 10/07/09 at 08:50:05

Title: Dial a Jet on stock with K&N cone???
Post by dasch on 10/07/09 at 08:50:05

Just received the DIJ. How the heck do I install it with cone filter?? Anybody?

Title: Re: Dial a Jet on stock with K&N cone???
Post by Boule’tard on 10/07/09 at 09:17:46

The conventional way to install one is to just punch a hole in the rubber boot behind the carb, which I assume you don't have because of the cone setup.

In that case it will be slightly more trouble, but you will end up with a better install.  I have the stock airbox w/upstream boot, but still put the DAJ straight into the carb body.  The DAJ is said to function better the closer the emulsion tube is to the slide.  So all you have to do is VERY CAREFULLY drill a hole just upstream of the slide such that the emulsion tube will be perpendicular to the airflow and point right at the center of the carb throat.  Also be careful to place the hole so that you have clearance for the DAJ box and snorkel boot if you choose to run it.

Select a bit size the same or slightly smaller than the outer thread diameter at the top of the emulsion tube.  Since the tube's brass is harder than the aluminum, it will thread right in.  Thread it in there and put a dab of red RTV or other sealant so it squeezes down as you finish screwing it down.  It should be very snug, and you may not even need the zip-tie to hold it down.  

Title: Re: Dial a Jet on stock with K&N cone???
Post by LANCER on 10/07/09 at 09:55:08

I install the DAJ into the carb body as B/T described doing to his.
I drill and tap the threads for quick and easy mounting.

Photo from Thunder Products website.

http://www.thunderproducts.com/images/photos/closeup.gif

http://www.thunderproducts.com/images/photos/dialajet2.jpg

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/07/09 at 10:41:44

clear enough. Next question: I understand the 5-position dial, but what is the +/- brass screw for then???

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/07/09 at 10:50:43

and one more: can it be mounted upside down? Left side? right side? does it matter??

Title: Re: Dial a Jet on stock with K&N cone???
Post by LANCER on 10/07/09 at 16:22:00


7A7F6D7D761E0 wrote:
and one more: can it be mounted upside down? Left side? right side? does it matter??



Do not go upside down.  The best positions are between 1 & 2 o'clock, or between 10 & 11 o'clock.  You can go down to 3 or 9 o'clock but only if you have to.

Title: Re: Dial a Jet on stock with K&N cone???
Post by Boule’tard on 10/07/09 at 17:11:51


313426363D550 wrote:
clear enough. Next question: I understand the 5-position dial, but what is the +/- brass screw for then???

I believe the +/- marks refer to the dial, which would be turned toward the + side for a richer mixture.

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/08/09 at 04:20:34

Besides the white plastic 5-position dial, there's also a brass screw, with +/i signs are right around it. Baaaaa, nevermind, I'll figure it out.

Title: Re: Dial a Jet on stock with K&N cone???
Post by LANCER on 10/08/09 at 07:33:02

The brass screw is the "lock-down" device.  Loosen it before turning the plastic numbered  adjustment dial to lean or richen the mixture, then tighten the brass screw again to lock the adjustment dial in place.
Turning the plastic numbered adjustment dial without loosening the brass screw could possibly damage the plastic dial.
The intructions that come with the DAJ explain the process.

Title: Re: Dial a Jet on stock with K&N cone???
Post by justin_o_guy2 on 10/08/09 at 07:39:40

The intructions that come with the DAJ explain the process.


* Note: In an effort to pay proper homage to all the Tim the Toolman types out there, refer to the instructions ONLY after it doesnt work doing it "Your Way".. or, read the danged things before you do anything, I wont tell,,

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/08/09 at 12:14:58

Instructions?? Me no need no stinkin' instructions!!

Thank you all. One more: can I drill the stock carb flesh in the place like on lancer's picture:

http://www.thunderproducts.com/images/photos/closeup.gif

I mean, there's no little air passages there? If YES than - I'm good.

Title: Re: Dial a Jet on stock with K&N cone???
Post by Reelthing on 10/08/09 at 15:49:31

I'm very interested in your impression of the device after you get it install on the savage.

How lean are you going to setup the savage carb so the device can fill it back in?  

Title: Re: Dial a Jet on stock with K&N cone???
Post by justin_o_guy2 on 10/08/09 at 16:20:16

Just make sure you get all the crap that falls, dont want to be sucking any junk into the engine...

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/09/09 at 00:00:56

Thanks again. I will post impressions, for sure.

Reelthing: I run a K&N and a large ID straight-through glasspack pipe. Jets are 50 idle, mix screw 3 turns out, 150 main, needle one recess up (I have a carb with little clip), white washer in place as stock. Surprisingly enough, but I'm just slightly lean, and it got worse after it got colder.
I don't think I will have to do anything to make it even leaner, believing I am just about within the desired 10% "leanness" for DIJ to work.

We will see.

Title: Re: Dial a Jet on stock with K&N cone???
Post by bill67 on 10/09/09 at 03:46:37

 That dial a jet is a waste of time and money,unless every hour as the temperature rises you want to dial in a new setting.

Title: Re: Dial a Jet on stock with K&N cone???
Post by Oldnewguy on 10/09/09 at 04:49:18

I was just about to jump on one of these, but... What's the real deal? There seems to be a couple of opinions.

Title: Re: Dial a Jet on stock with K&N cone???
Post by LANCER on 10/09/09 at 05:35:51


4B4045451F1E290 wrote:
 That dial a jet is a waste of time and money,unless every hour as the temperature rises you want to dial in a new setting.



No need to make continual adjustments.  The DAJ is made for that very purpose; to make the adjustments automatically based upon the needs of the engine at any given time.   The original inventor of the device used it to fine tune his engines to maximize their performance ... and ended up setting several land speed records on the salt flats.   So does it work ? ?  I think having some world records under your belt gives you just a BIT OF CREDIBILITY.

Keep in mind that the DAJ works from 1/4 to W/O throttle. The UFO controls idle to 1/2 throttle.

Title: Re: Dial a Jet on stock with K&N cone???
Post by dasch on 10/09/09 at 08:45:12

Cool. Thanks Lancer and all. I guess I'll find out soon. I'll also post here what I realistically got.


Title: Re: Dial a Jet on stock with K&N cone???
Post by Oldnewguy on 10/09/09 at 10:45:17

Can this DAJ be used for exhaust mods or is actual jet replacement necessary?

Title: Re: Dial a Jet on stock with K&N cone???
Post by LANCER on 10/10/09 at 07:24:37


04130213130157630 wrote:
Can this DAJ be used for exhaust mods or is actual jet replacement necessary?


Go to www.thunderproducts.com and check out the info on how it works.  There is a short product discription and there is also a more detailed explanation on another page.  At the bottom of the page with the short discrilption, there is a link to the bigger one.

They will tell you everything you want to know about how it functions.

You can call Lonn (owner of company) during the week and talk to him if you have specific questions, and he would probably send you a product brochure if you asked him.  It explains about the installation, setup, and tuning of the device.

Title: Re: Dial a Jet on stock with K&N cone???
Post by Oldnewguy on 10/10/09 at 11:23:11

Lancer,

thanks for the info. I checked it out, but am not sure what I want to do for just a Hartman muffler mod. I heard that you are the go to guy for carb stuff?

Fred

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