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I like to party.. #217
Hey I've got a question I live about hmm like 1,100 feet above sea level. I'm running a 155 main and 42 pilot and 2.5 a/f for the winter and it ran great. What do you think I should run for the summer? 165? Or do I really even need to change it out with just full exhaust and air filter no lid? Sorry so many questions! Thanks Bro!
Honda 400ex, YELLOW!
*Sparks X-6 Exhaust
*Blingstar Iron Cross
*Tusk Nerf Bars
*Uni Air Filter, no Air box lid
*Semi-Professional driver
Y4R 2/2 starter!
Honda 500 Foreman
Kawafreakinsaki Brute Force 750
Can-Am Renegade 800 Xxc(It came, and it burned)
"A champion is someone who gets up, even when he can't"
Code Red Racing #23
you would want to go down for the summer usually. if i understand it correctly you are running no lid and a full exhaust now so i would recommend leaving the 155 in for the summer or going down to a 152. that seems a bit low for a summer jet with a full exhaust but running the stock filter will limit it about 2 jet sizes compared to usual with a full exhaust.
I hope i read it right,
also if possible, and no offense to you for posting here but if you could delete your post after i finish your question, I would appreciate it. I would like to keep this clean of posts.
Thanks,
steve
2019 Maverick X3 XDS Turbo R
2003 TRX 400EX
2016 HONDA RANCHER
I know wiring....
so glad you did this...have searched for a lot of these different posts...now its all in one!! thanks again Steve!!
'99 402ex
*Best way to get your question answered is SEARCHING for it*
faster than yhu..
i have a 170 main slip on with a airfilter
2005 400ex(red)
itp holeslot
pro amour nerfs
maier race cut plastic
k/n no lid
outerwears prefilter
170 main
hmf slip on
big gun rev box
itp hd holeslot rear
If its my bike dont ask to ride it
Yes my bike is faster no i will give you ahead start
stock front for now
The Canadian Redneck
Okay so I have a slip on, and a filter, and I already ordered a 158. I'm planning on getting a headpipe this winter for it but for now if I mod my airbox would that be alright? I'm also running in cold weather.
2007 400ex -
Pro Circuit T-4 Slip-On, Pro Armour Nerfs, UNI Air Filter, K&N PowerLid, PowerMadd Handguards, 155 Main, 42 Pilot, YFZ450 Front Shocks, Shock Pros CDN Flag Front Shock Covers, Shaved Front Fenders, Moose MXR Rear Brake Rotor, NGK Spark Plug, 20" ITP Holeshot XCR's in Rear, ODI Rogue Lock-On Grips, ROX Billet Handguard Mounts, Factory FX Glass Grip Donuts, DG Sport Bumper, Pro-Taper SE ATV High Bend Handlebars, ROX Dash, DP Brake Pads, DG Baja Series Swing Arm Skid Plate
2001 300ex-
FMF PowerCore 4, FMF Hi-Flow Headpipe, Kimpex 14T Front Sprocket, Kimpex 38T Rear Sprocket, All Balls Carrier Barrings , Kimpex Chain, Scott Grips, UNI Air Filter, Homemade Long/Wide Grab Bar, NHC Kevlar Rear Brake Pad, 22" Maxxis Razrs on Rear
'84 Suzuki lt125
'07 Daymak 125 -Paid 80, sold 450
'77 Kawisaki KM100 -Wiseco, JT, EK
'07 Baja DR90
'05 Ski-Doo GSX 600 HO SDI Lt.
Junior Member
that chart is wickid helpful man but it must be diff up here cuz i work at a honda dealer an the stock main for a ex here is a 138 lol so im wonderin how much my 440 is gona be diff from what uve got here in that chart but its a good startin point me thanks again
Registered User
are these keihin jets?Originally Posted by honda400ex2003
Just for reference for me, i am making a thread with this info on it. It shows where each part of the carb is in effect. now i can just search for my name and find this lol. steve
My jetting suggestions:
Jetting placement chart:
BBBRRRAAAPPP
Yes, I know this for a fact he doesnt use dynocrap jets
If it's stupid, and it works, it isn't stupid. - Murphy's Law
2000 426EX,sold
2004 450R WIP
-Longtime A.A.D.S. (Accessory Acquisition Disorder Syndrome) sufferer.
400EX Frequently Asked Questions, CHECK HERE FIRST!
Jedi Master
Not saying theres anything wrong with this thread, Im just saying that if your gonna jet you should follow the jetting procedure for tunning the main jet at www.jetsrus.com
Theres lots of stock bore 400exs running 200 size main jets, its best to find out the right way instead of guessing or assuming jet size.
400ex hybrid Finished!
http://www.youtube.com/watch?v=YMDIAw8UskQ
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