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mattio
09-25-2008, 05:43 PM
i have a ex/426 hybrid with a FCR mx carb and it will not fit in the frame unless its cocked sideways. Then it runs like s**t if i run it that way. I was told to use a 400ex carb boot but not really sure. What is the best setup for my application? :confused:

mattio
09-25-2008, 05:43 PM
sorry not cocked but tilted sideways

2muchquad
09-26-2008, 12:21 PM
I think a lot of people were notching the frame for carb clearance.Do a search,it has been done many times:)

hskers82
09-26-2008, 09:19 PM
get ahold of ss440ex(Al), he should have pics of how he notched and re-enforced the 400 frame.

rob-u/21
09-29-2008, 12:00 PM
Yes, I just got my ex chassis back from my welder and that is what we did. We notched a pretty big chunk out of the frame. I have a pics that ss440ex sent me. I could email them to you. I'm sure he wont mind.

woodsracer144
10-01-2008, 07:14 PM
i have that same problem! i dont get it! what the heck... the guy i got it from choped the factory piece in the lft corner out and its weak as hell how so i welded a little thing in there but i was hopin to find a different chassie and get a hose and bend it up and a around.... i have a really thin rubber piece in the front now and theres just enough for the boof from the box to fix... but my line for gas is gettin cut off...


HEAD ACKE

250x_kyle
10-05-2008, 10:55 AM
i notched my frame. i think its about an inch in from the frame u start. i put a brand new cut off wheel on and just ground it down then bend a hunk of 1/8th inch flat bar to the correct contour. layed a weld around it. buffed it a little. the carb slid on then i took a hunkof radiator hose. and slipped it over the carb cut it off about 5 inches long and i slid it into the 400ex boot wich i cut down about two inches. i put some blue rtv cealent around the radiator hose slid it into the 400ex boot, clamped it and it ran like a champ.

woodsracer144
10-05-2008, 06:39 PM
got any pics?

250x_kyle
10-05-2008, 07:52 PM
i can get a picture of the notch. but im parting th quad out and its in pieces ill try to get a pic though.