Nastiest motor i can cram into a 200x frame?

[yamasaki760]

So i have this "extra" 200x rolling chassis at the house.. :p

It has tecate rims and a 350x front end on it..

Just wondering.. what's a dirty/nasty/wild/crazy motor i can stuff in there and build a little bad boy out of it?

[yamasaki760]

i dont mind a little cutting/welding

[6spdls1z28]

I'd do a cr 80/85 motor or 125

[Jmoozy27]

2-stroker comes to mind. 1st gen frames aren't the most sturdy. Reinforcing it would be a must.

[oldskool83]

1st gen frames suck. I am doing a KX112 right now in mine. Most 125 pipes are going to come out right in the middle of the frame. Mine is being cut apart over at HRE as I type. @nd gen 200x frames make a better platform but I had a 1st gen laying around I basically got for nothing.

4 main problems with 1st gen.

1: frame design
2: chain adjust design affect motor placement
3: foot pedal
4: rear master cylinder relocation is needed for kickers to clear depending on what it used.

[hawaiirider]

itd flat out be alot cheaper just to buy a air cooled r and smoke the x.
i disagree with 1st gen frames sucking, ive jumped mine for years with no problems at all, the 2nd gen x frames crack easier, i would know, ive done it. the first gen frame chain adj does suck as does the kickstart brake pedal config like oldskool83 said.

[yamasaki760]

there are two 350x's in our crew that the 200x posse in our crew is looking to ridicule, terminate, exterminate, eradicate, then defecate on.

[yamasaki760]

we're at the point where we're willing to wield torches, welders, buy motors on ebay, whatever it takes.

Money is no object.

except, well, we're all broke. but you know what i mean. :-)

we're also willing to consider sabotage if building a franken200x is out of the question

[yamasaki760]

I'd do a cr 80/85 motor or 125

would a 125 motor push it well? I sure do miss the F*** out of my yz125

[oldskool83]

CR80 motors were put in these long ago....the 200x motor has no HP...12 or 14...kinda a joke. the KX100 motor I am using has 25hp with out the bigbore kit I will do. I am only using it for a trail machine when I do not want to run my banshee.

[yamasaki760]

I was looking at crf450 motors on ebay this morning but didnt get past the first 5 minutes.. people are NUTS.. $2000+ for 10 year old crf450 motors.. holy jesus..

we can get whole running bikes for that much down here.. then id have to figure out radiator mounts, etc.... but just closed the browser when i started seeing those prices lol.

[yamasaki760]

CR80 motors were put in these long ago....the 200x motor has no HP...12 or 14...kinda a joke. the KX100 motor I am using has 25hp with out the bigbore kit I will do. I am only using it for a trail machine when I do not want to run my banshee.

you kinda got me all giddy now.. I can just smell the high compression top ends, vp110 and castor 927!!! BBBBrrrraaaaaaaaaaaaaaaaaaaaaap!!!

[oldskool83]

Motors are always worth more then whole bikes. 450R motor won't fit in a 200x. They are too tall. Plus if your going to do all that work in a crappy chassis with a great motor your not thinking correctly.

What is your goal here? Like I said I am building a trail riding bikes to ride with my girlfriends raptor 250r...the object is not tons of power just a light little machine I can throw around easy and climb coal hills with her.

Remember your size also...I'm 135-140lbs in gear and 5ft 6. At some point spending all kind of money to have the fastest toy means nothing if your not going to use it correctly. Spend 2 grand on a motor might as well go out and buy a good running atc250r and call it a day.

I had spare parts left over and 2 machines were not enough for me after I left a 125 mx bike go.

[yamasaki760]

it's a pride thing in our crew.. we just need a 200x that will put an end to the mouth-running fools with 350x's in our group of guys.

keep in mind, my crew are all high school friends and we're all in our 40s now. Its just about talking smack, drinking beers, and playing in the mud with the 3 wheelers.. its nothing more serious than that. :-)

[83ATC185]

I vote air cooled wr500 motor.

[yamasaki760]

I vote air cooled wr500 motor.

anything with the numbers 500 in it sounds awesome lol

is that even remotely possible? lol

[83ATC185]

is that even remotely possible? lol

I doubt it lol i dont know how youd make the pipe clear everything.

[John_Neary]

81 YZ250 engine has a side exhaust port and a left hand side countershaft sprocket so would be one choice to consider.

[yamasaki760]

been looking at 1980 and older cr125 motors. They're air cooled, 2 stroke, and make 22HP in stock form.. lots of potential there?

[John_Neary]

@yamasaski760 - I had a 79 CR125 powered three wheeler and it ran awesome, fun fact you could just angle the kickstarter forward and pull start it with your hand using the kickstart lever. The trouble is the counter shaft sprocket is on the right side and your 200x is setup for a left side counter shaft so your brakes and rear sprocket would have to be flipped. It could be done but you are making a lot of extra work for yourself.

And any 125 you pick will not blow the doors off even a stock 350x, so either pick a 250cc or pump up your 200x motor if beating 350x's is your goal.

[oldskool83]

KDX200 air cooled bikes 83-88. I would'nt bother with any old CR motors

[John_Neary]

trouble with KDX200 is again not gonna beat a 350x, i raced against Paul Woods who had his ported and stuff and my 200x could keep up with him np

1979-81 YZ250 would drop right in, just need to make a pipe and sort out the engine mounts plus they are popular so ease of finding spare part should not be an issue. My older brother had a 78 YZ250 and it hauled butt.

Was good enough for a unknown Marty Hart to beat the "unbeatable" Dean Sundahl :)

220647

[oldskool83]

he has not said if this is a highly done up 350x or just a well beat up machine.

[John_Neary]

yeah but we dont want his friends only a service and a pipe away from being faster again :P

[yamasaki760]

yeah but we dont want his friends only a service and a pipe away from being faster again :P

i think youre just the kind of guy we like drinking an irresponsible amount of beers with.

The two 350's in our crew are stock internals, just bolt-ons like pipes and one guy has a flat slide carb and a pipe.

[yamasaki760]

1979-81 YZ250 would drop right in, just need to make a pipe and sort out the engine mounts

I like the sound of that.. i bled blue for lots of years....

[John_Neary]

The front, top and lower motor mounts are fairly flexible on their location but you wanna make sure the rear pivot bolt/motor mount is in the ball part as to width of your swing arm and the height of the engines rear motor mount hole vs the location of the 200x's rear engine mount.

[yamasaki760]

The front, top and lower motor mounts are fairly flexible on their location but you wanna make sure the rear pivot bolt/motor mount is in the ball part as to width of your swing arm and the height of the engines rear motor mount hole vs the location of the 200x's rear engine mount.

cool.. i have a buddy that owns a marine exhaust fabrication shop with lots of expensive tools, welding equipment, etc... im sure we can mcGuyver something up in there.

[John_Neary]

since its hard to find just engines with the carb, electrics and everything all in working order you might consider buying a complete dirt bike, taking the motor and stuff out that you need and either reselling it as a roller or just setting it aside while you use the engine and then rebuild the dirt bike to sell once you had your fun and move on to some other project

this was our common practice back when i used to race and we hand built most of our bikes this way

[knappyfeet]

it's a pride thing in our crew..

I feel ya. The only thing you could do with minimal frame stuff is some little pinger. That's easy but weak. Do it clean and right.

I went to the garage when someone said 450 and thought hhmmmmm. I looked at my ltz400 and my 1 gen x and thought..........I can do that. You would need some modification to the frame but its doable. Plus while those bustas are kicking to bring their 350s to life.... You just hit "push to start"....... That's whats up.

[barnett468]

.

anything with the numbers 500 in it sounds awesome lol is that even remotely possible? lol


.................................................. .............................................. Yes it is.


..............................http://img.photobucket.com/albums/v418/sk8rcaleb/3%20wheeler/3wheel1.jpg

[hawaiirider]

imo, if you have a 200x with a 250motor in it, its a 250 not a 200x, 500 motor its a 500 not a 200x anymore.

i have a highly built 200 motor that WILL flat out outrun my buds stock cherry 350x, then again with the $ i put in the motor i could have bought myself a 350x in the first place.
converting a dirtbike to trike is much easier than modding a old x frame anyways.

[jb2wheels]

Maybe a Banshee engine?

[oscarmayer]

i'm building up a 200MX with a CR125R motor with a 144BB kit. will put down close to 46-48HP when done and scream like mad!the CR250R is the same dimension as the 125. imagine that with a BB setup. you would need to mod the hell outta the X frame as well as better rear setup.

[fieldy]

Rotax??????

[John_Neary]

@fieldy - if you mean a Can Am style two stroke Rotax the trouble is the countershaft sprocket is the wrong side and it has a center exhaust port so for a 200x it would be quite a lot of work to make one fit.

[onformula1]

81 YZ250 engine has a side exhaust port and a left hand side countershaft sprocket so would be one choice to consider.

John is correct, many years ago we played around with putting YZ 400/465/490 motors in one, the old school rear case design mounting allows you to keep the front adjustable swingarm. Those engines along with the YZ 250 are very fast!

[Ol Deuce]

I did the MR175 2stroke in my 200x frame !! workwd out great ! No cut & hack !LoL

[yamasaki760]

This thread officially kicks trailprotrailprotrailprotrailprotrailpro

[yamasaki760]

John is correct, many years ago we played around with putting YZ 400/465/490 motors in one, the old school rear case design mounting allows you to keep the front adjustable swingarm. Those engines along with the YZ 250 are very fast!

So.. what was the verdict with the YZ4xxx motors? Success?


I did the MR175 2stroke in my 200x frame !! workwd out great ! No cut & hack !LoL

YES!!!!!

[onformula1]

^ We had them in the frame and the only trouble I remember was getting the exhaust to fit correctly, it would have needed a few cut and turns.

We ended up saving the 200X and making it a MX Trike and converted the YZ to a trike.

[Jmoozy27]

I'm not one for blending brands but no one has brought up the blaster yet. Very simple motor to deal with and it would still be a 200cc motor. With an aftermarket pipe, solid carb/jetting, and proper gearing it would be a head turner for sure.

[John_Neary]

But he needs to beat his friends who ride 350x and a Blaster is just a detuned IT200, a bonus of having a 250cc power plant is the extra power allows the bike will move along at a good clip with less chance of overheating while something like a 125 or a enduro style 200 is gonna struggle dealing with the extra weight and traction of a ATC.

If staying with a 200 is the goal how about a KTM200? Its a small engine and the pipe looks like it could be made to fit. Countershaft is on the correct side but he would have to make a split down tube frame cradle for the center exhaust.

A mid 2000's used one cant be super expensive.
220753

[onformula1]

I'm not one for blending brands but no one has brought up the blaster yet. Very simple motor to deal with and it would still be a 200cc motor. With an aftermarket pipe, solid carb/jetting, and proper gearing it would be a head turner for sure.

Don't forget many Blaster guys use a 240cc BB kit.

[knappyfeet]

I'm not one for blending brands but no one has brought up the blaster yet. Very simple motor to deal with and it would still be a 200cc motor. With an aftermarket pipe, solid carb/jetting, and proper gearing it would be a head turner for sure.

A blaster will beat my LTZ400 out of the hole nearly everytime. It pushes 4 wheels all the time. I think I'm feeling it. Especially if one could source those cheaper.

[Jmoozy27]

But he needs to beat his friends who ride 350x and a Blaster is just a detuned IT200, a bonus of having a 250cc power plant is the extra power allows the bike will move along at a good clip with less chance of overheating while something like a 125 or a enduro style 200 is gonna struggle dealing with the extra weight and traction of a ATC.

If staying with a 200 is the goal how about a KTM200? Its a small engine and the pipe looks like it could be made to fit. Countershaft is on the correct side but he would have to make a split down tube frame cradle for the center exhaust.

A mid 2000's used one cant be super expensive.
220753

Ooh I like the sound of that conversion!!!! There was an '02 model for sale near me the other day for $2000. It was in awesome shape. That may be the best option so far IMO.

[Jmoozy27]

A blaster will beat my LTZ400 out of the hole nearly everytime. It pushes 4 wheels all the time. I think I'm feeling it. Especially if one could source those cheaper.

In my experience, there is nothing special about a blaster, but no one can say that they aren't quick, and a little scary!!!! A lot of good opinions in this thread. Hopefully we get a good build out of these ideas.

[RubberSalt]

The blaster that me and my brother built easily outruns 250r. It's a stock stroke stock bore 200cc blaster with extensive work done. Until seen or ridden, people don't believe it.

My favorite race was when I took down my best friends 700 raptor. And I've got 80lb more fat on me that he does! He's got a pipe, programmer, and air box opened up, nothing huge down.

If it's was me building a machine, I'd grab a 84-85 tecate motor. The exhaust port comes out at an angle to get around the frame.

[RubberSalt]

The blaster that me and my brother built easily outruns 250r. It's a stock stroke stock bore 200cc blaster with extensive work done. Until seen or ridden, people don't believe it.

My favorite race was when I took down my best friends 700 raptor. And I've got 80lb more fat on me that he does! He's got a pipe, programmer, and air box opened up, nothing huge down.

If it's was me building a machine, I'd grab a 84-85 tecate motor. The exhaust port comes out at an angle to get around the frame.

[83ATC185]

^ We had them in the frame and the only trouble I remember was getting the exhaust to fit correctly, it would have needed a few cut and turns.

We ended up saving the 200X and making it a MX Trike and converted the YZ to a trike.

Are there any differences between the YZ490 and WR500 motor other than bore size? seems like they were about the same but i could be wrong. I think it's awesome that they will fit! That thing would be violent on the pipe. I probably shouldn't think too hard on it or ill be in the shop rounding up parts tonight :naughty:

Putting my 220 pound trailprotrailprotrailpro on a 200x with a 500 motor is asking for a broke frame and/or neck.

[oldskool83]

YZ490 and WR500 are about the same...they have horrible head designs and will detonate quickly with stock porting. You will need to send the head out and get it machined before every kicking the motor over. Then add a decompression valve in the head so it kicks like a 125.

[knappyfeet]

YZ490 and WR500 are about the same...they have horrible head designs and will detonate quickly with stock porting.

My WR500 was completely stock.....no problemo. The WR would be a better choice than the YZ because of its gearing.....you'll have a 100mph trike. But over all not a feasible choice only because the WR500 is a collectible bike now so finding a donor motor....much harder. Even if you did after 30 minutes of riding you could easily amputate your fingers from the numbness. All these years of riding everything.......nothing is more numbing than the old yamaha big singles.

[John_Neary]

No need to chop anything up, you simply remove the engine with the carb and electrics and push the bike chassis into a corner while you use its engine. When you wanna resell the bike you bolt the running gear back and and it looks the same as the day you bought it. We did this for years.

[onformula1]

Are there any differences between the YZ490 and WR500 motor other than bore size? seems like they were about the same but i could be wrong. I think it's awesome that they will fit! That thing would be violent on the pipe. I probably shouldn't think too hard on it or ill be in the shop rounding up parts tonight :naughty:

Putting my 220 pound trailprotrailprotrailpro on a 200x with a 500 motor is asking for a broke frame and/or neck.
It's been many years, but If I remember correctly the WR500 had the same bore and stroke and was just called a 500, it also had a more modern carb and reeds, wide ratio transmission, head tweaks and ignition upgrades, silver engine instead of black the head design is still bad, but Eric Gorr has the fix for cheap and has a section talking about it on his website.

Sent from my SM-G386T1 using Tapatalk

[YTZ drew]

The WR500 is not the one to have. The 500/490/465's are all the same, with the swingarm through the crankcase like a modern bike (they bolt into Tri-Z's though :naughty:). The IT425, and the '79 IT/YZ 400's are the ones that have the cases with lots of clearance near the swinger location. The '78 and older engines have a much bigger set of cases and would not fit well.

For what its worth, my IT425 pulls like a tractor and will spank a '99 KTM 250SX, as I found out 2 days ago! Mr. KTM and I even swapped bikes for a few laps, and the result was the same, only the spanking was worse (he's a better rider than I am :lol:)

[knappyfeet]

LTZ400 motor...........no keys..push to start

[greenhuman]

CRF230F engine. Bolt in. Bore and stroke to 250cc. It will still almost look like a stock 200X but give them 350X smart arses a big fright.

[yaegerb]

Out of all of these I am going with green humans idea or you call terry at Powroll and make a 240 out of the 200x motor. He has kits in stock.

[Jmoozy27]

Out of all of these I am going with green humans idea or you call terry at Powroll and make a 240 out of the 200x motor. He has kits in stock.

I rarely disagree with yaegerb, but in this case the only way I see him taking out his competition is with a 2-stroke. Lighter, cheaper, faster out of the box. The entire powroll setup will put him back at least 1500 bucks. This will make his trike very fast. But I'm afraid that the 350x guys are only 1-2 mods away from being faster. Then he will be back at square 1 with empty pockets. I like the idea of the ktm200, but I still think the cr125 is the way to go. There is still not much hard evidence on three wheels. The proper mods would determine where the proof lies.

[yaegerb]

I rarely disagree with yaegerb, but in this case the only way I see him taking out his competition is with a 2-stroke. Lighter, cheaper, faster out of the box. The entire powroll setup will put him back at least 1500 bucks. This will make his trike very fast. But I'm afraid that the 350x guys are only 1-2 mods away from being faster. Then he will be back at square 1 with empty pockets. I like the idea of the ktm200, but I still think the cr125 is the way to go. There is still not much hard evidence on three wheels. The proper mods would determine where the proof lies.

Call me a purist. I like 200x motors to stay in 200x's. If you want to beat a 350x, go buy a 250R, quadzilla, banshee, or something else.

[fabiodriven]

When it really comes down to it, a beefed up or modified 200X frame with a bigger engine or more horsepower is basically an inferior 250R. All these big bores being tossed around are great power plants, but in my eyes to take so much power and throw it at such an inferior frame just doesn't make sense. I know, it's been posted; For the 200X guys, yeah! In the end the only thing you'll have is too much power in a frame that can't handle it with inferior suspension. Sure you can upgrade the suspension as well, but you're still stuck with a frame that was designed for 12 horsepower and people that were half as fat. You want to make people upset go get a Tecate.

[Jmoozy27]

I completely agree with both of you. But in this case what he wants to do is surprise people. I can feel his pain, for the most part. He wants people to say, "wtf was that thing that just smoked me". It's very feasible to do.

So let's see it Yamasaki, you gonna build one? :acr

[oldskool83]

I'd buy a used KDX200 or a 125cc. Anything much more is going to cost $1500 alone. plus all the fab work, plus the issues I know he will run into, plus the extra added cost of things that are messed up (which you will find) at the end of the day the guys is gonna blow $2500+ and have shitty suspension. $500 more he can have 250R suspension....now he is at $3000. Then he has to play with gearing from a cycle motor to a atv frame...then play with tires....

Buy a 250R and save yourself so much drama. Screw the bored 200x idea...Only people who need them worked motors are people racing them. This thread got 6 pages and the dood does not even have a motor yet. I'd post when you have a power plant and do what you want to do..not what a bunch of guys on the internet he is never gonna meet think he should do.

[RIDE-RED 250r]

I completely agree with both of you. But in this case what he wants to do is surprise people. I can feel his pain, for the most part. He wants people to say, "wtf was that thing that just smoked me". It's very feasible to do.

So let's see it Yamasaki, you gonna build one? :acr

No offense Jmoozy, but nobody is going to be fooled by a 200x sporting an expansion chamber or a street bike engine... ;)

It's fun to talk about shoe-horning this or that into a 200x.. But a sleeper it won't be. Anyone who knows how many wheels a trike has will know it's not a 200x mill. Nobody will be taken by surprise.

[Ol Deuce]

No offense Jmoozy, but nobody is going to be fooled by a 200x sporting an expansion chamber or a street bike engine... ;)

It's fun to talk about shoe-horning this or that into a 200x.. But a sleeper it won't be. Anyone who knows how many wheels a trike has will know it's not a 200x mill. Nobody will be taken by surprise.

My deal was the Sound, Smoke, & thrill of less than 200cc in a ATC frame to maybe race a Class!!! than the skill of the tune to make this a winner !! I looked at the chassis and the 200x was the answer but not for a Gorilla engine! the frame won't do it!!!
but a less than 200cc ape engine Hell yes!!! Each Group should be a considered Class! youcan run big bore 200 in the same class as others ! The skill level of the rider will make the event !!!! I still feel ya dont want the Mods to go beyond a riders level or some one / thing will get Damaged ...we sure don't want that !!! I for one love the Mods Great sport & tons of Fun!!!!...... Ol Deuce

[RIDE-RED 250r]

Love your 175 conversion Randy! :beer Superbly done.

[Dirtcrasher]

Don't forget many Blaster guys use a 240cc BB kit.

Yes, I have always felt a Blaster with a kit would do well....

[effort=results]

What about a blaster motor. I cant find it but theres that vid of some kid gooning with a 200x with one on it seemed nice and snappy.

[onformula1]

Yes, I have always felt a Blaster with a kit would do well....
I have seen a lot of BB kited Blasters at the Cinders and Glamis there is a pretty big aftermarket, they are pretty small, fairly light weight, air cooled and can make good power, the engine is reliable too.

Sent from my SM-G386T1 using Tapatalk

[RIDE-RED 250r]

OK, so Vitos-ify a Blaster motor and you're still not quite to stock 250 power... http://www.vitosperformance.com/atv_parts/product.php?productid=11522&

However, I think a pumped up Blaster mill could be pretty fun in a 200x chassis, and certainly seems a better fit. Also should make stock-ish 350x's blush just going on the advertised numbers. Plus it would kind of retain some sleeper element. How many 350x's respect a Blaster? Exhaust is still going to be a trick though. Been awhile since I've laid eyes on a Blaster pipe, but I'm thinking it would take some work to get it to fit.

If I were looking to build a Franken-200x, I would be looking at this.

[onformula1]

The Blaster motor modded would be more than enough power to beat a 350X with minor bolt ons, but the Blaster up and over exhaust would be tough, I would try to modify a IT200 pipe before I would mess with the Blaster pipe, a custom exhaust would be better.

[Jmoozy27]

No offense Jmoozy, but nobody is going to be fooled by a 200x sporting an expansion chamber or a street bike engine... ;)

It's fun to talk about shoe-horning this or that into a 200x.. But a sleeper it won't be. Anyone who knows how many wheels a trike has will know it's not a 200x mill. Nobody will be taken by surprise.

I didn't mean to fool in that way. That would mean that he would be racing some 5th graders, and that would just be wrong. :lol:I'm just a fan of having machines that are one of a kind. And fast!!! It's just nice to say " I built that, and there is not another one in the world just like it." That's all I meant, I guess I'm just partial to that kind of stuff. Whether the machine he builds beats the rivaled 350x, you just hope that the guys say "damn that thing is fast.":beer

[Bren_downe]

Here ya go E=R.…
https://m.youtube.com/watch?v=5Eu4J3x0Y6U

[MRBIGWHEELZ]

I have a Yamaha it 465 two stroke fit into a 200x with a little modification .. I wasn't the builder but got it for a chain saw and a hundred bucks....this is a fast machine and would def give the 350 a run for its money I can't seem to post a pic of it but I will keep trying ....

[RIDE-RED 250r]

Here ya go E=R.…
https://m.youtube.com/watch?v=5Eu4J3x0Y6U

Looks like a fun trike! Dude can ride too :D

But WTF WAS HE DOING WITH A RATTLE CAN NEAR THAT 2ND GEN AT THE END OF THE VID????!!!! ARRRRGGGGG! :(

[Dirtcrasher]

Second Gen, Works shock, progressive fronts and a 160lb rider would do pretty well I imagine. (just got my Progressives today : D )

The reason I want to see a Blaster motor in one is there are so many of them made; Tough to find one a kid didn't destroy may be difficult.

And I have enough parts to build 2 more 86/87 200X based frames. I've seen 85 frames brake, but not an 86/87.

His gearing seems off in the video

[onformula1]

Yeah.......and i wonder why he rolls his head around like a faackin jerk ? ......do ya tink he smooke da leafer ?

Man, I miss Mitch Hedberg, very funny guy.

[Red Rider]

But WTF WAS HE DOING WITH A RATTLE CAN NEAR THAT 2ND GEN AT THE END OF THE VID????!!!!That's the same bike he was riding in the video, after he made a trip to Walmart to git some spray paint to perty it up some.