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post #1 of 10 (permalink) Old 02-09-2010, 07:47 PM Thread Starter
 
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Jetting?

Hey guys and maybe gals .I'm new at this teryx thing. I just bought a used 08
with 41 hours on it and I've done a few mods but would like some experienced advice. Dynatek cdi,big gun mufflers with race cores, afe non oil filter. Is jetting recomended?
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post #2 of 10 (permalink) Old 02-09-2010, 10:22 PM
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absolutely...with those mods, jetting is a must...you are going to have to flow more air / fuel to support the cdi/exhaust/intake... check out hunterworks' carb kit...

08 LE, DASA 840, Muzzys, CDI, Open Filter Carb setup, VFJ Stage 3, XMF LT w / WER shocks, XMF 2 seat radius cage, XMF bed delete kit and bumpers, Lowrance Baja 540c GPS, HID's, 14" MSA MCX tires on black MSA Diesels, Twisted Stitch Agressors w / XMF seat bases, and a whole bunch of other shit!
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post #3 of 10 (permalink) Old 02-10-2010, 05:33 AM Thread Starter
 
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Thanks! What do you recomend for jet sizes ? And I hear guys talking about drilling holes in their airboxes. Does that make a difference?
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post #4 of 10 (permalink) Old 02-10-2010, 10:53 AM
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Jetting depends on your altitude. HW carb kit is a good start, also invest in an A/F gauge to insure your getting it right.
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post #5 of 10 (permalink) Old 02-10-2010, 10:09 PM Thread Starter
 
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Thanks. I'll go ahead and jet it for glamis since that's where I do most of my riding. The carbs probably aren't much different then my yfz450 so I don't think I'll have a problem. If I run into trouble I'll be in touch. Thanks for the info guys
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post #6 of 10 (permalink) Old 02-11-2010, 06:35 AM
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Originally Posted by CFFnutcase View Post
Thanks. I'll go ahead and jet it for glamis since that's where I do most of my riding. The carbs probably aren't much different then my yfz450 so I don't think I'll have a problem. If I run into trouble I'll be in touch. Thanks for the info guys
The jet kit we have is not the same one you buy off shelf, the main difference is the springs and the addition of two two TPI valves. The kit adds 6hp between 15 and 25 mph.

Todd



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post #7 of 10 (permalink) Old 02-11-2010, 10:33 AM
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FYI...on my machine (CDI, no lid, high flow filter, BUT stock exhaust) the best needle was the stocker. The HW and a custom Weller needle had a supper rich condition between 1/2 to 3/4. Both of these needles were shorter than the stocker and the taper was different. I found that using the longer needle pinched off the rich condition until the slide was fully open (WOT). Just an FYI and without an A/F gauge, you'll never know.
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post #8 of 10 (permalink) Old 02-11-2010, 08:26 PM
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Originally Posted by az_amsoil View Post
FYI...on my machine (CDI, no lid, high flow filter, BUT stock exhaust) the best needle was the stocker. The HW and a custom Weller needle had a supper rich condition between 1/2 to 3/4. Both of these needles were shorter than the stocker and the taper was different. I found that using the longer needle pinched off the rich condition until the slide was fully open (WOT). Just an FYI and without an A/F gauge, you'll never know.
The no lid was causing you the issues



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post #9 of 10 (permalink) Old 02-11-2010, 08:30 PM
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The no lid was causing you the issues
Yeah...my thought was the slides are not opening as fast as with the lid on (and TPI valves)...right?
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post #10 of 10 (permalink) Old 02-11-2010, 08:49 PM
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Something like that



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