cr 250 carb

[badass400ex]

i heard that a cr250 carb will give tremendous power gains on a 400ex is this true has anyone tried it? and what setup did you try it on? thanks

[EXevan91]

sorry for replying to olfd post but i need to know this and what size/bore is the cr250 carb ? i might a have a really good deal on one would i need a new cable ? will it fit at all ?

[2muchquad]

Its possible but the cr carb doesnt have a accel pump.Im not saying it wont work because the mikuni tmx which was used on some cr and yz 2 strokes was a good hop up carb for the honda xr 600 4 stroke.Its a 38mm carb by the way.You will need a different throttle cable too.A 250r cable will work.As far as jetting goes your on your own.Let me know if it works out;)

[EXevan91]

does anybody think it would be an upgrade/power enhancer?

over a stock 400 carb ?

iam talking about the newer crs they have a flat slide right ./?

[2muchquad]

If you can get it dialed in it will DEFINATELY pull harder on the top end,you may have a slight off idle hesitation without a accel pump but it may not be too bad.

[86 Quad R]

it'll make it rip from the mid to upper RPM's but it'll cause hesitation om bottom. if there were accelerator pumps on the carb it'd be awesum.

[Toadz400]

Why not just go with an FCR39? It's bigger and it's made for a 4-stroke.

[2muchquad]

Why not just go with an FCR39?

for the price of a used fcr,one could buy 2 or 3 carbs from a late model mx bike.;)

[EXevan91]

so it would be a good deal/good idea if i could get an awsome deal on one?

[2muchquad]

Certainly.I have picked up carbs for like 30 bucks or so off ebay.It just depends;)