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Senior Member
i am running a 300ex with a fmf megamax pipe and header with a k&n filter-i have the 128 main jet installed according to their website and they say the stock pilot jet but what if i have the k&n-it changes for the 400ex but they list nothing for the 300ex with the k&n. what do you think i should use?
i have been running this setup for over a year and a half but i was wondering if i could gain a little more?
2000 416ex
burgard +2 a arms
big gun exhaust
ac pro pegs
maxxis razors up front and maxxis razor 2 in back
ac swing arm skid
lonestar adjustable axle and lonestar carrier
1998 honda 300ex-
fmf powercore 4 pipe
ac racing nerfs
400ex a arms and shocks
maxxis razors front tires and maxxis surtrax rear tires
ac racing front bumper and skid plate
lonestar axle-renthal sprockets and chain
raptor rear shock
renthal bars
Moderator
did you just recently go to K&N? were you runnin closed air box before and are wanting to modify?Originally posted by SnotMe80
i am running a 300ex with a fmf megamax pipe and header with a k&n filter-i have the 128 main jet installed according to their website and they say the stock pilot jet but what if i have the k&n-it changes for the 400ex but they list nothing for the 300ex with the k&n. what do you think i should use?
i have been running this setup for over a year and a half but i was wondering if i could gain a little more?
http://qjsimaging.com/
-2002 Duncan 440ex-
Yoshimura full system,JE piston(12:1),Stage 2 Hot Cam,Port,polish, +3 Chrome Burgards AArms ,Elka Suspension -Triple rate front and Rear,GT Thunder Rev Box,,Pro Armour Nerfs,Burgard beadlock rears,Orange Fullbore,Chrome Tank cover,Candy Purple PC,Blingstar Dana Creech Bumper
2007 Suzuki LTR450
FOX Shocks, JB Racing A-Arms, Silver Maier plastic, Quad Tech Seat Cover, BRM Offroad race numbers
2008 Raptor 250 BUILD IN PROGRESS!
Thank you 2010 Sponsors
and Contributers!!
Teixeira Tech,DWT, Fasstco Co., Maxima oils, Scott USA, Renthal, ODI, FLY Racing,Western Powersports, Promoto Billet, FOX Shocks,Maier Plastics,ODI,Rath Racing,ATV4-play
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Senior Member
no i have been running the k&n since i put the pipe and header on-i also run a closed air box with lid on because i do alot of water crossings. like i said it rus fine but i did not know if could get a little more out of it?
thanks
Rob
2000 416ex
burgard +2 a arms
big gun exhaust
ac pro pegs
maxxis razors up front and maxxis razor 2 in back
ac swing arm skid
lonestar adjustable axle and lonestar carrier
1998 honda 300ex-
fmf powercore 4 pipe
ac racing nerfs
400ex a arms and shocks
maxxis razors front tires and maxxis surtrax rear tires
ac racing front bumper and skid plate
lonestar axle-renthal sprockets and chain
raptor rear shock
renthal bars
Moderator
WEll I think if your running a full system, then this will be about all your gonna get Im afraid..Originally posted by SnotMe80
no i have been running the k&n since i put the pipe and header on-i also run a closed air box with lid on because i do alot of water crossings. like i said it rus fine but i did not know if could get a little more out of it?
thanks
Rob
http://qjsimaging.com/
-2002 Duncan 440ex-
Yoshimura full system,JE piston(12:1),Stage 2 Hot Cam,Port,polish, +3 Chrome Burgards AArms ,Elka Suspension -Triple rate front and Rear,GT Thunder Rev Box,,Pro Armour Nerfs,Burgard beadlock rears,Orange Fullbore,Chrome Tank cover,Candy Purple PC,Blingstar Dana Creech Bumper
2007 Suzuki LTR450
FOX Shocks, JB Racing A-Arms, Silver Maier plastic, Quad Tech Seat Cover, BRM Offroad race numbers
2008 Raptor 250 BUILD IN PROGRESS!
Thank you 2010 Sponsors
and Contributers!!
Teixeira Tech,DWT, Fasstco Co., Maxima oils, Scott USA, Renthal, ODI, FLY Racing,Western Powersports, Promoto Billet, FOX Shocks,Maier Plastics,ODI,Rath Racing,ATV4-play
ASV,Motoworks,QuadTech,Streamline,
RockyMountain ATV,Powermadd,Les Schwab,QJ's Imaging
C&D Racing
I have never had to change the pilot on a 300ex they run pretty good with the stock size.
C&D Racing, the official sponsor of ATVriders.com and your #1 aftermarket and OEM parts shop! 402-614-2508
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Senior Member
Colby,
Quick question, I will be installing a PRo Circuit T 4 Pipe and uni filter on my 300ex with uni pre filter,
I bought some jets to give me a start. I have installed a mani Khien Jet #125 and the needle to groove 4, Is this a good starting point for me to have, I understand the pilot will be good where it's at now. So my main concern is the main jet.
The 125 is that to low for a starting point or whould I start higher and go from there.
Any help would be greatful.
Everything goes on this saturday.
Thanks in advance
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