Largest Motor In 200x frame

[Dastepher]

Whats the largest motor someone has stuckin a 200x frame with or without modding it? What challenges did you face? Does it offically run? Was it worth the trouble? Ive heard from a friend of a friend of a friend etc.... That someone stuck a motorcycle engine on one. Interesting.

[oscarmayer]

if willing to mod, then nearly anything. I've seen 250r motors in there and 500r started, but the guy ran outta $. (200x frame lighter than 250r)

what are you trying to do?

[Micahdogg]

This was posted in another thread.

http://i251.photobucket.com/albums/gg308/ditchmud/DSC00679.jpg

If it's true, then it's pretty darn cool! Oops, just realized, that's probably not a 200x frame.

[freaksfix]

Thats Sandpuppies 600X.. I believe its a mix between a 350X and XR600 frames..

[oldskool83]

not much fits in a 200x frame. if you hack it up anything can be made to fit. but prob you sprockets wont line up in the end cuz those motors were not as wide as other bikes.

[Dirtcrasher]

You'd be surprised what fits in an 86/87 style frame :)

But, I always tell people, how many good conversions do you see?? We know the people that have the tools and abilities... Otherwise, any meatball can stuff any motor in any frame, and it never works well and gets sold for peanuts.

Want more power?? Build the motor!! Performance engine changes don't add any weight to speak of...................

[Dastepher]

Thanx for the info guys. i Guess its best to work from the ground up instead of stuffin it. And i didn't know that the 200x frame is lighter. Is it the LIGHTEST 3 wheeler frame?

[lndy650]

isnt bigbores 500x a 200x chassis?

[hondahaulic]

xr200 and 230f dirtbike engines will bolt in for the most part, and give a pretty healthy power gain. I put a tlr200 dirtbike engine in a 200s of mine, and the only major problem is the kicker. I have a parts 200x engine, and the plan was to mix and match parts to end up with a 6 speed manual clutch 200s with a forward kicker and 200x head/valves/and camshaft. I haven't gotten around to finish it, but I did take it for a few rides with the 6 speed tlr engine.

[SYKO]

isnt bigbores 500x a 200x chassis?



I believe thats a nicholsons frame wich used 200x parts like tank/plastics

[4cfed]

yamahaman on here stock a 450??? 500??? street bike motor into one.. i think it ran?? but didnt stop.. i cant reember

[oldskool83]

xr 200 motors do not bold in 84+ i tried, an RFVC motor is nearly as big as a 86/87 200x motor. 83-02 xr200 motor fits but no mounting points mount up really, i know because i trided. if you mod the framw it fits in there fine.

[greenhuman]

xr 200 motors do not bold in 84+ i tried, an RFVC motor is nearly as big as a 86/87 200x motor. 83-02 xr200 motor fits but no mounting points mount up really, i know because i trided. if you mod the framw it fits in there fine.
???? 83-02 XR200 and 83-85 200X have the same center cases so they do fit including the head. All the bolts line up perfectly. The RFVC engines don't fit but they are crappy anyway.

[Tri king]

In my local classifieds about a month ago someone was selling an 85 200x with cr500 motor in it for $500. it was a little rough around the edges but still looked bad A .
I called him up and the guys brother ended up in the hospital for 2 weeks :) and wanted to get rid of it.
I tried to call him back to work out a deal and I could not get a hold of him.:(

[this guy]

I measured it out at one point and a blaster engine will go in, and a 490 engine isn't much bigger.

[oldskool83]

i meant 86-02. the mounting points are differnt them 81-83 xr200. alot of parts will swap but the mounts are different but can be made to work.

none of the front mounts mount up on the 86-02 motors. i put one in my 85 200x frame. i didnt do the swap then.

[oscarmayer]

the 200x is the lightest full suspension frame honda made. the 200s frames are lighter but are hard tailed. the x is a much better frame in my opinion.

The 200XR is not that much better than the 200x (engine wise) in my books. has about .5 compression ratio higher and a slightly better cam and bigger carb. I'd take my 200x (and yes i'm doing that anyway) redo the top end really nice, redo the clutch setup and go from there. once you get the power up if you want more lower end, you can change gearing and same goes for higher top end. change gearing.

[MagicJames]

My suggestion would be to throw some money at it, instead of trying to shoe-horn a motor into it. Some Mods:
Megacycle mid range cam (Best that i've heard of, Just my opinion)
Heavy duty springs
Oversize Valves (Better breathing and performance)
30mm Carb
Port and Polish the Head
DG Exhaust (or other performance exhaust)

You can also do a xr200 6 speed tranny, not that it helps performance, but hey, ever hear anyone complain about an extra gear?!?!?

[oscarmayer]

you can really get into some coin to hope it up and get a ton of extra power and torque out of it. what it boils down to now days is how much money you have to spend will determine how fast it will go.

[Micahdogg]

"Fast, Reliable, Cheap. Choose two." - this has always been the case.

[AutoXer]

the way things are going you can buy a r for the $ you will put into hop up parts if you buy new ones

[oscarmayer]

R's are good for some things but not others. every thing has it's place. they are greate for making a stupdi fast bike, but they have no bottom end. if your a avif trail rider that doesn;t spend much time in the upper midde to top end of the pwoer band, the R won't feel or be as powerful from my expirences. That's where the 4 strokers have an advantage. low to mid ranges. so it's depenedant on riding styles.

[MagicJames]

R's are good for some things but not others. every thing has it's place. they are greate for making a stupdi fast bike, but they have no bottom end. if your a avif trail rider that doesn;t spend much time in the upper midde to top end of the pwoer band, the R won't feel or be as powerful from my expirences. That's where the 4 strokers have an advantage. low to mid ranges. so it's depenedant on riding styles.

I had a 250r with no porting, and rad valve, 38 pwk, and a PT woods pipe (pt-5 i think) and that thing had lots of low end power but the top end was equal to stock.

It's just dependent on what you're looking for.
I know i suggested things before but honestly if you're looking for cheap performance upgrades, do a bigger carb, and a aftermarket exhaust and that should bump you up for the least amount of money. You might get lucky and find someone selling a used aftermarket cam, those 3 would be my first upgrades. Buy a used carb and clean it all up, get a new exhaust (not really pricey as compared to other machines) and find a cam ( new is not too bad price wise either)

[Micahdogg]

I disagree Oscar. "No bottom end" is too subjective. For instance, I think 125's have no bottom end, but that didn't stop someone from winning the infamous "Blackwater 100" on a 125. IMO the 250R provides every bit as much bottom end, granted with a little more rpm and clutch at times, but snaps to the top end with more power than a 350X. To me, that is an advantage in the woods.

The only time that I think a 350X would have an advantage is if you are luggin up a never ending hill. It would be more forgiving in that case. And this is no offense to the 350X's cause I think they kick azz.