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dannyboy20
10-14-2003, 07:11 PM
does white brother pipes come with jets ?
JOEX
10-14-2003, 07:17 PM
I don't think any pipe comes with jets. I belive most come with jetting suggestions though.

Joe
AtvMxRider
10-14-2003, 07:20 PM
Nope.
dannyboy20
10-14-2003, 07:23 PM
ok. i think i might have the dealer do it so i dont F*** it up
JOEX
10-14-2003, 07:34 PM
Originally posted by dannyboy20
ok. i think i might have the dealer do it so i dont F*** it up
It is very simple to change the main jet but if you have the money to pay someone, go for it.

Joe
dannyboy20
10-14-2003, 07:36 PM
i really dont but i know if i take the carb out and mess with it i will screw something up.
JOEX
10-14-2003, 07:48 PM
I understand not wanting to F' things up, i've done enough of that!

If you some mechanical ability i.e. know how to operate a ratchet and socket, you can change the main jet.

The carb does not need to be removed.

Turn off the gas.
Use a 17mm socket to remove the drain plug on the bottom of the carb.
Use a 6mm socket to remove the actual jet.
Use the same 6mm socket to install the new jet. Start screwing it in with just the socket and your fingers. No ratchet.
Once it to hard to turn with your fingers attach the ratchet and just 'snug' it up a bit.
Replace the drain plug using the same manner.
Turn on the gas.
Wait a minute then fire it up.

If you aren't comfortable doing this, by all means pay a mechanic to do it.

Joe
dannyboy20
10-14-2003, 07:55 PM
Oh wow that sounds easy. So i will only have to change the main jet ?
JOEX
10-14-2003, 08:02 PM
Originally posted by dannyboy20
Oh wow that sounds easy. So i will only have to change the main jet ?
Most likely. If you want easier starting change the pilot jet to a 40 or 42. It's a little more involved than the main but still very simple.

I highly suggest getting a repair manual and reading it.:) Well worth the money. It will pay for itself when you do your first mod'/repair.

Joe
dannyboy20
10-14-2003, 08:04 PM
ok tkanks for the info
AtvMxRider
10-15-2003, 02:57 PM
Joex explained it pretty well :) .
zephead400ex
10-15-2003, 05:47 PM
Hey JOEX, what is the stock main jet? 38? I think I am needing to replace mine...I will probably start with a 40 and go to 42 if needed. Thanks man!

peace
JOEX
10-15-2003, 08:56 PM
Originally posted by zephead400ex
Hey JOEX, what is the stock main jet? 38? I think I am needing to replace mine...I will probably start with a 40 and go to 42 if needed. Thanks man!

peace
The stock main is 148.
The stock pilot is 38.

Joe
Sportrax10
10-15-2003, 09:23 PM
This helped me out a lot the first time I jetted a 400ex.
http://www.exriders.com/vbb/showthread.php?s=&threadid=19832
hondarider2006
10-15-2003, 11:36 PM
Originally posted by Sportrax10
This helped me out a lot the first time I jetted a 400ex.
http://www.exriders.com/vbb/showthread.php?s=&threadid=19832


This also was a very big help to me. After having the carb. apart a few times, its very simple to work with. I am thinking about going with a 40 or 42 piolet jet.....Also winter is coming, and the 170 main jet is calling....:blah:
dannyboy20
10-16-2003, 10:23 PM
ok well i talked to two places today about having the carb rejetted. I went to the honda dealer were i bought it and the guy was like well we normally dont do that and it would take a few hours. The othr place said I dont have to even touch the carb unless im doing a header pipe.
cals400ex
10-17-2003, 07:59 PM
i would not take it to either place because:
1. it doesn't take a few hours
2. it is highly recommended that you rejet even with a slip on. is it a must? no!! will you gain power without rejetting? very little if your lucky. jetting is easy. don't worry about messing something up as someone on here will be able to help you out. i was scared the first time i did it. after that, i didn't have a problem changing main, pilot, and needle jets. after you do it once, you will say to yourself that you can't even imagine taking it in to a shop for them to do it. good luck
dannyboy20
10-17-2003, 10:29 PM
were can i get the jsts individually because the guy at the honda dealer said you need a whole kit so the would most likely try to sell me the kit.
JOEX
10-17-2003, 11:08 PM
C&D Racing sells individual jets.

Joe
cals400ex
10-17-2003, 11:50 PM
yes, c&d sell the jets. you should be able to get the individual jets from the dealer. i get all of mine there since it is close and convenient. i personally wouldn't buy the whole dynojet kit if it was me. i would buy the individual keihin jets.
dannyboy20
10-18-2003, 07:28 PM
How much $$
JOEX
10-18-2003, 08:17 PM
Originally posted by dannyboy20
How much $$
$3.50 each.
dannyboy20
10-19-2003, 02:29 PM
:macho
dannyboy20
10-20-2003, 07:45 PM
ok i got the pipe today and threw it on. It had six disks on it. Started no problem. I let it warm up and then rode it. It ran great and i could fell a huge difference in power. I read the directions and they said to try the pipe with the stock jetting before you make any adjustments and that it will possibly work with the stock jetting. Well ill find out when i take it for a long rife.