What Carb for 426 kit

[HondaRacing23]

I have a 426 kit on my bike with an HMF full system. What carb and what support would anyone recomend. I want something that is going to make my bike run better then it does now with a stock carb. thanks

[panteramatt]

fcr 39mm definitely.

[HondaRacing23]

do i need to do anything else to the bike to get it set up or is it already come pre jeted just bolt on and FLY...:D

[HondaRacing23]

also where can i by one at. what site i search all over for a site and cant find any.

[Airik79mx]

Check with Baldwin Motorsports or Sparks Racing they offer FCR carbs ready to bolt on and rip. But I'm not sure if they sale the 39mm. Give em a call.

[j753301]

what about a 450r carb.there cheap and they work

[HondaRacing23]

is fcr the model name does edlebrock make it?

[HondaRacing23]

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4527081764&category=43979&sspagename=WDVW

[khen]

Originally posted by HondaRacing23
is fcr the model name does edlebrock make it? No, the Elelbrock is a different carb. The FCR is made by Keihn and they are quite pricey. There are a few of us that are experimenting with the 450R carb on our built EX's. This could be a much more economical solution and the power gains are proving to be very impressive.

Here (http://www.exriders.com/vbb/showthread.php?s=&threadid=143853) is a thread about them.

[khen]

The installation of a 450R carb does take a bit of work, but so does the FCR from what I hear. Here (http://www.exriders.com/vbb/showthread.php?s=&threadid=142331&highlight=450r+carb+400ex) is another link with some more info and a link to some dyno runs with this carb.

[HondaRacing23]

i think i might go with the edlebrock its not as much $$$$$ and the 450R carb sounds like it has some bugs still yet. the edlebrock should do something different then stock for sure. I just dont want to take my air box lid off because i ride in a bunch of mud and water her in ohio where it seems to never stop snowing and raining. here is a link to the carb that i want tell me what you think. it says with air box lid off but let me know.
here is a screen shot of the carb i want let me know. thanks

[HondaRacing23]

the pic wont work for some reason guve me your email and ill email it to u if u dont mind

[HondaRacing23]

is there anything i can do to my stock carb that would give me more power and better throttle responce

[khen]

I don't know to much about the edelbrock carb, but from what I hear they are about the easiest to mount up(assuming you get the one specific for the EX). There are 2 different versions, one for the 440EX and one for the 400EX. I don't know which of these would be better for a 426EX.

You can also send your carb out to be bored a couple of mm bigger or remove your choke for a little gain. I don't have any experience with either of these mods either though.. perhaps someone who's done them will chime in, if not you can do a search and there is a little bit of info on here about them.

[HondaRacing23]

okay thanks for all yuor advice man. Ill give some of those a try. is the edlebrock just as good as the FCR or is it worse or is it about the same.

[TC426EX]

Alot of people dont like the Edelbrock carb for some reason... The FCR is a proven winner and the 39mm has pretty much proven itself to be the best carb out for the 400ex...

And just for the record, the carb you get has nothing to do with whether you run an airbox lid or not... I also live in this slop hole called OH and I know what you mean about the wetness... You can run any carb you want to, you just have to JET it different for running an airbox lid than you would for none...

[HondaRacing23]

TC426EX......Where can I get an FCR for the price. I work at Hardings Park Cycle I dont know if you heard of them or not but I can get one for $513.00 new. the retail it for $699.99 is that a good price? I just took my choke off mine about 20min ago and it seems to be running ok. it still backfires a lot and blows flames out sometimes too what would cause that? if I could get it from back fireing I would be happy....:) :) :) I am running right now a 160main 42pilot and 3 turns out on the air screw with the air lid on and K&N filter. thats what Cals400ex(i think thats his name) told me to do. let me know.

[K_Fulk]

I have the is edelbrock for sale. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4527233850&ssPageName=STRK:MESE:IT

As far as the edelbrock versus the fcr, ive used both and like the fcr's better.

[cals400ex]

Originally posted by HondaRacing23
TC426EX......Where can I get an FCR for the price. I work at Hardings Park Cycle I dont know if you heard of them or not but I can get one for $513.00 new. the retail it for $699.99 is that a good price? I just took my choke off mine about 20min ago and it seems to be running ok. it still backfires a lot and blows flames out sometimes too what would cause that? if I could get it from back fireing I would be happy....:) :) :) I am running right now a 160main 42pilot and 3 turns out on the air screw with the air lid on and K&N filter. thats what Cals400ex(i think thats his name) told me to do. let me know.

you will want the needle clip in the 4th position too. when does it blow flames out? accelerating or decelerating? when your on a the gas a bit or when your totally off the gas?

i would check with C&D on the prices for the fcr carbs. they may be able to beat that price but i really don't know.

[HondaRacing23]

i have the needle on the 4th position and a 160 main in with a 42 pilot and no choke. it back fires when it is decelerating mostly. I dont know what to do i have tried everything.

[K_Fulk]

Try a 40 pilot.

[HondaRacing23]

will that make any difference and will that make it any harder to start being that I dont have a choke

[K_Fulk]

It will take a little bit to start in the winter, pump it a few times run a lil then stalls , gotta repeat the process a few times. In the summer it starts up easy. A 40 is all the bigger you need in ohio.

[HondaRacing23]

and that should stop the backfireing?

[K_Fulk]

Most likely.

Also have you adjusted your air fuel screw on the bottom of the carb? Try adjusting that also.

[HondaRacing23]

i was told 3 turns out and thats where it is should i go more or less.

[K_Fulk]

You have to adjust it to where it works maybe more maybe more maybe less. Nothing is set in stone. It takes a lot of trial and error to get what your looking for.

I jetted a carb last week for a kid and started with a 40 pilot and 155 main. It ran good until you got to top end. Put a 160 main in and it was good to go. He will probly need to go back down come summer though. He just had a ct pipe and a k&n.

On my 440 i ran a 155main and 40 pilot all the time when i used a stock carb.

[cals400ex]

are you a full 3 turns out on the fuel screw or only half that? remember one turn is a full 360 degrees. i see many people only go 180 and think that is a full turn, but it is only half a turn. i am going to go against kfulk and say try turning the mixture screw out a bit more to richen up the mixture at idle. i would go to a 45 before a 40 but he is right though, it is different for every bike. let us know how it works.

[HondaRacing23]

Well I picked up a 42 Pilot at work today before i went home and it doesnt ride any better or start any worse or anything. It seems to be running pretty good on mid and top but bottom end sucks. It still backfires a little not as much as it did with the 42 pilot other than that i think im almost there. I may need a new clutch but it doesnt seem like it is slippng or anything. It kinda seems like it is getting to much gas on bottom to tell u the truth. what and I try to fix that.:confused: :( :confused:

[K_Fulk]

Have you tried riding it with the lid off? IF you do and it runs better, try the stock pilot, or lowering the needle 1 clip. Also try going in quarter turn increments on the fuel screw untill you find what works the best.

If you get the jetting right the 3rd 4th or 5th time your still doing pretty good. Tere is a lot of trial and error.

[cals400ex]

i bet if you went from a 40 to a 42 pilot jet and the back firing got better, you just need to turn the fuel screw out a tad more to help the problem out even more.

what do you mean it is running bad on low end? is it missing or just seem low on power? what gearing and tire sizes you running?

[HondaRacing23]

i didnt go from a 40 to a 42 i went from a 42 to a 40. it just bogs down like its sucking in to much gas..

[cals400ex]

mine doesn't backfire when i totally let off the gas when i am really rich on the pilot jet. it does do it when i am lean though. this is just what has worked for me.