how much to down jett ? - what do any of you recommend as far as how far to down jett ? started by topgunformula
	September 17th 2009 at 2:31 PM Post #1
	topgunformula 96 skidoo formula 3 8 Posts Group: Members Member Since: June 17th 2009 Location: centerline, mi, USA Current Sled: 1996 skidoo formula 3
	[ HOW FAR ARE SOME OF YOU GUY'S DOWN JETTED ON YOUR SLEDS ? I AM ONLY 1 DOWN ON MAIN JETTS FROM STOCK "FACTORY" AND AGAIN ONLY 1 DOWN ON PILOT JETTS FROM STOCK "FACTORY" DONT WANNA LEAN TO HARD BUT WHAT ARE SOME OF YOU GUYS JETTED FROM ALL FACTORY ON MAIN/PILOTS ? THANX , JIM jimmy " topgun " Rating: 0 Quick Edit Edit Topic

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	September 17th 2009 at 5:02 PM  [ Modified September 17th 2009 at 5:03 PM ] Post #2
	RMK-KING The Fabricator Moderator 9125 Posts Group: Moderators Member Since: October 3rd 2002 Location: Center and Roseglen, ND, USA Current Sled: 09 RMK 700 & 06 IQr 600 2008-2009 Miles: 550
	Why in the world are you typing in caps? All sleds are different,the only way to tell if you are jetted correctly is by reading your plugs/piston wash or running EGT gauges. Some can be dropped anywheres from 1-5 sizes lower from the factory. Current Line Up -09 RMK Assault -06 IQ R 600HO -01 ProX 600 -95 XCR 600 Days get shorter,snow gets deeper,life gets better. Rating: 0 Quick Edit Full Edit

	September 17th 2009 at 5:17 PM  [ Modified September 17th 2009 at 5:17 PM ] Post #3
	arcticcatmatt Spleen Splitter arcticcatmatt leaving after work for 3 days of shotgun season back home! Updated Friday at 12:16 PM 14007 Posts Group: Moderators Member Since: November 25th 2001 Location: Berkshire, NY, USA Current Sled: 96/97 ZRT 600 2008-2009 Miles: 450
	^ Agreed. Heck I am running 360 mains in mine at the moment and a buddy with the same sled cannot run them here at this same elevation Rating: 0 Quick Edit Full Edit

	September 17th 2009 at 5:38 PM Post #4
	Zippi Average Member 537 Posts Group: Members Member Since: November 7th 2005 Location: Groton, NY, USA 2008-2009 Miles: 1300
	only go down one size at a time! all sleds are different. I had a 910 that ran the same size jets as i had in my 660, but had dif size carbs. i also had a sled that i had to jet down 80 from stock. Snowcheck: 2010 Polaris Rush 2009 Ski-Doo 600 ETEC www.hygearsuspension.com Rating: 0 Quick Edit Full Edit

	September 19th 2009 at 8:41 PM Post #5
	Student Driver Mountain Rider With 6 Month Season 4992 Posts Group: Moderators Member Since: April 16th 2004 Location: Kuna, Idaho, USA
	Look under your hood for the jetting chart, it will be different for your elevation and riding temp. Start with that and adjust from there as need be. Bring jets and spare plugs with you for the first ride in the fall. Colder air is more dense with oxegen so it burns leaner lower elevation is more dense with oxegen so it burns leaner. Too lean and you melt down, Too rich and you foul plugs and run like crap. These are the people who work to keep our riding areas open. It's free to join and it really does help www.snowmobile-alliance.org Rating: 0 Quick Edit Full Edit

	October 17th 2009 at 12:15 AM Post #6
	c4boom Junior Member 360 Posts Group: Members Member Since: February 20th 2005 Location: Pittsfield, NH, USA Current Sled: 98 Polaris Indy XC700 2008-2009 Miles: 180
	on my xc 700 i run 178s and its still a little rich but others with the same sled are all set at 182 Rating: 0 Quick Edit Full Edit