86 atc200x carb

[deathman53]

I might be looking for a performance carb for my 1986 atc200x. It has a worked motor....12:1, shaved flywheel, megacycle cam, ported/polished and clutch to handle it. It now has 27mm DG Pd carb. I was told that 30mm Chinese carbs seam to work for people and others put a carb off a crf150r on it. What is everybody running??? I am using a twist throttle also, it might be an issue. I have a few things to do to it before I really ride it, race gas, tires, clean it good, probably try a 13t sprocket(has 14/36 on it), glue the grip on and a proper front master cylinder(400ex one is too touchy). It spins the wheels on my most anything as it is. It also has a cobra pipe w/supertrapp 350x exhaust open end cap, hydraulic clutch, 85 350x triples(steering stops cut down), 83/84 250r front end(rebuilt w/ terry kit), some kind of fox rear shock, rad carrier, 83/84 250r axle, LSR 400ex hubs, 86 trx/atc 250r rear brake made to work, 86 200x front brake, steering stabilzer and small things.

[350for350]

Without knowing any of the specs of it, I'd think that the CRF150R carb would be a good place to start. Especially since you have a twist throttle like the bike does. Personally, I stay away from the Chinese carbs and I always recommend that others do too.

[deathman53]

will a crf150r carb work? It looks too big. I was looking at a fcr-mx 32 carb, it looks like it will work, but I can't find how tall it is. I have an adapter piece also, I got it many years ago and it sat on a box.

[x-rider]

I’ve had a twist throttle and thumb throttle on my oem carb, so that shouldn’t be an issue. As far as size I do not know with the modifications you have. Christph (spelling?) sent me a link to performance carbs if you look at his post in the Mukini vs Keihin thread.

[Tri-Z 250]

will a crf150r carb work? It looks too big. I was looking at a fcr-mx 32 carb, it looks like it will work, but I can't find how tall it is. I have an adapter piece also, I got it many years ago and it sat on a box.

More than 1guy runs this setup in TT at the NattyBula. Please understand these are Built Engines, never noticed air box or intake mods. I was walking the pits and ended chatting it up with fast Freddy...so he did say it was a stock CRF150R carb.

[deathman53]

does the xr200 carb boot work on a 86/87??? It looks like a 83-85 200x type motor.