350x the way I like it, with a wide ass

**The Goat** · 01-16-2008, 10:49 PM

yeah...i think it was 300...don't quote me on that, but it was a retardedly high number. wait...268 maybe. and machining of the head if you go with the oversized bearings i think?

**honda250sx** · 01-16-2008, 10:50 PM

Goat thanks for the info on megacycles. Everyone always says. Im going to run a cam and high comp piston and blah blah blah, but never puts it in writing about there experiences with any companies. I doesnt sound like they wanted to sell you on all of there most expensive parts or machine work. Good deal and cant wait to see your motor report. I thought someone did a 430 powroll kit a bit ago back on there 350x. I would search the site for that.

**hrc200x** · 01-16-2008, 11:42 PM

Sounds like they make a bearing to fit in the journals of a stock head, and they can also bore out the journals for a larger bearing?

**SWIGIN** · 01-17-2008, 12:48 AM

stock 350x hp is 26. something you could get into the 30s

megacycle is the best to deal with......they live there jobs it seems. not just selling what they are told to.

**SWIGIN** · 01-17-2008, 12:50 AM

Originally Posted by hrc200x

Sounds like they make a bearing to fit in the journals of a stock head, and they can also bore out the journals for a larger bearing?

yes, if your journals are tore up they can save your head by boring the journals larger for bigger needle bearings....along with the stock size needle bearing cam

**The Goat** · 01-23-2008, 02:07 PM

is there any particular year 400ex carb needed for the 350x?

**oldskool83** · 01-23-2008, 02:13 PM

400ex's are all the same from 99-08 so year wouldnt be an issue i dont think

**scrawny** · 01-23-2008, 02:47 PM

nope not an issue, newer is always better long run wise.

after only having my ex carb on my racing frame (that was modified for a bigger carb) i couldnt believe how tight of a fit it is in the stock frame. be prepared for some airbox snorkle mods

**jason85atc250r** · 01-23-2008, 10:31 PM

Originally Posted by The Goat

is there any particular year 400ex carb needed for the 350x?

get a 38mm aftermarket carb will run way better the 400ex ones are not muchh bigger then stock

**scrawny** · 01-23-2008, 10:41 PM

a 400ex carb is a 38 with the advantage of an accelerator pump.

**jason85atc250r** · 01-23-2008, 10:44 PM

Originally Posted by scrawny

a 400ex carb is a 38 with the advantage of an accelerator pump.

your mistaken they are only a 35 or 36 mm carb.

**Black86tri-z** · 01-23-2008, 10:44 PM

Originally Posted by The Goat

is there any particular year 400ex carb needed for the 350x?

05 and up are better,i forget y but all will do the same thing i think the newer 1's make it easyer to start

**The Goat** · 01-25-2008, 01:29 PM

okay here is a question...400ex riders are upgrading their carbs to the newer 450r model. it's a 40mm. now my question is simple. if the 450r's carb is the better, why not purchase it instead?

has anyone done this mod?

**SYKO** · 01-25-2008, 01:32 PM

yea I think some guy on org has done it, but you loose all the duct work for the air box as that carb is alot bigger then the 400ex carb even, you coming next weekend with your homie?

**SWIGIN** · 01-25-2008, 01:32 PM

they are huge and if it fits my frame im going to run a 450 carb on my monster motor when its done.

the newer 450 carbs are 41mm but that might be the dirt bike carb

ether way i would not wast the time on a 400ex carb on this motor...you need at least a 38mm. i do know the early ( 04-05) 450r had 39mm carbs if that helps......after 05 honda jumped up to the 41mm or so

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