fcr 39mm

[kmftxl400]

does this carb fit right up to a kfx or is thair any kind of modifications u have to make to it

[cataway]

it will fit ''but'' you do have to do some things to it .

you can take the TPS off but you dont have to .
you need a different cable and maybe a different thumb throttle,
and a idle adjustment mod if the tps is removed

has to be jetted

carb to head boot (C2HB)does not fit correctly ,easy fix with a short piece of hose made to carry gas. NAPA has it .

most guy's also go with a different air intake boot ,some even loose the air box at that point ,and add a bigger air filter ,its all good for 2 HP any way

a boot thats used offten is a boot from a trx400ex

[dylandrew1]

I've read that some guys use a DRZ carb-to-head boot with the FCR carb. If you are looking for one, I have an extra. I ended up using my stock boot. $10 shipped.

[cataway]

the stock c2hb can be made to stretch onto the fcr carb if you get the boot hot , hot like boiled in water kind of hot. even so the fit is not that great to the carb, or i should say not as good as it should be.
with a boot shorter than the stocker the carb hits hard against the head stay......................get a modified head stay