200x horsepower gains still need parts needed

**bigtloc** · 10-06-2006, 09:05 PM

Has anyone here built a 200x with any big HP ,a few years ago I used 185 head on a 200x and it ran a little better till the head gasket let go.
Im going to try and build my project and squeeze as much as I can ,Ive got a nice pipe and a hot cam .if anyone has any good secrets let me know.Maybe some carb mods.Whats a the best sprocket number for the 200x? thanks for any help Big
Im still in need of the left front shock.I have a 200 cc pull start motor and looks like 185 frame good parts to trade thanks again BigT

**seadoo650** · 10-06-2006, 09:22 PM

My wifes racer200x is pretty fast. The problem is I don't know what all has been done to it. Well I'm gonna find out this winter. Fifth gear is shot and it'll have to be tore down and fixed. While I'm in there I'm gonna make note of all the mods done to it. Right now it'll beat the heck out of a 350x. The only mod I know of for sure besides a supertrapp pipe and K&N filter is a big ol' 38 mikuni carb.

**bigtloc** · 10-06-2006, 09:58 PM

It can beat a 350x ,thats saying something I was wondering about a carb what did your carb come off of or do you know. thanks bigT

**seadoo650** · 10-06-2006, 10:13 PM

Don't know what it is off of. Looks like a 250r but it's alittle different than my old 250. It's pretty trick. Ran the drags at tf with a top speed of 42 m.p.h. in 300 ft. Most 350x's did 38 m.p.h. and some stock 250 2-strokers were at 42.

**edog** · 10-06-2006, 10:33 PM

When mine is done I will let you know.

**seadoo650** · 10-06-2006, 10:45 PM

Originally Posted by edog

When mine is done I will let you know.

What all ya doin to your's edog???

I'll post up a detailed report of the motor mods when it's tore down. I figure since the bike we got the motor off had all the other cool stuf (calfab swinger, wp shock, etc.) then the motor has got to have some really sweet internals as well.

**jason 32** · 10-07-2006, 12:25 AM

well i just got mine started -it has a new bore and bigger piston, a web cam 89a in it -it jetted too big- but runs good, now the damn clutch is shot,but it will go!!

i need a rear brake system if any one has one?? i am tired of dikk'en with ebay

**edog** · 10-07-2006, 08:20 AM

What all ya doin to your's edog???

It's top secret.

**sandpuppi101** · 10-07-2006, 09:03 AM

Hey Seadoo when you do find out what's in your 200X ,you are gonna let me know,are'nt you?? And yes guys ,he ain't kiddin -his 200x beat not only my 350X but it beat alot of em' !!! In my defense,I had little 18.5x11x8 Rawhide tires on!!! I know Dawn got a kick out of it !!LOL

**vartiak15** · 10-07-2006, 09:37 AM

i had an x that would move pretty good. it had a 12.1 comp weisco pistion in it, a white bros cam, suppertrapp, and i had it oil cooled. i want to build up another x this time use the stroker kit and some other goodies. i just wish i didnt sell that whole oil cooler assy. with the old motor. o well i have to make a new one.

**bigtloc** · 10-07-2006, 10:47 AM

With your 12.1 piston kit did you use a copper head gasket or one of the paper gaskets with the steal ring. ive had bad luck with head gaskets and I just got a set off ebay with a paper head gasket.I think Ill round file it and go with copper

**scooterroo** · 10-07-2006, 11:06 AM

what kind of gas do you run with a 12:1 compression set up? regular pump gas or race fuel? for carbs my bro just got an 82 xr200 intake and went with a 28mm or 30mm, cant remember which, but it stomps seriously now. check out powroll, or webcams for performance goodies. i know when i get my x, soon, very very soon, i am going to try and set it up like an old flat track racer and go with powroll performance parts in the topend, a nice pipe, probably the bigger intake from the xr200 and bigger carb. will be sweet and bad ash.

**bigtloc** · 10-07-2006, 04:58 PM

So a xr 200 intake bolts up alright?

**Levithan** · 10-07-2006, 05:01 PM

Yea, im curious about this as well. I would like to setup a flattrack style 200x, and was wondering what the best perfomance parts you guys thought of. I have a supertrapp exaust. The engine that i got used to have what i think is a 12:1 piston which is sitting in a box of parts that it came with. It also has a racing cam, but the cam looks as if it might have taken a very small amount of damage somehow. So, right now the engine is all stock and waiting to be put back togeher. I Would really like to put those race parts back in though, I would love to have a flat track setup!

**Dammit!** · 10-07-2006, 05:05 PM

Engine mods have already been covered.

I used to run 14/37 gearing on my old X with 18 inch tires. It moved extremely well for a 200x.

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200x horsepower gains still need parts needed