220R conversion, what is best?

[Ed Grimly]

Ok, soooo the 200R conversion thread has gotten some interests up. Even Jenn has expressed interest in owning one.

I can see possabilities both ways but since I have never done an ATV conversion I wanted to see what people thought would be the best way. Hmmm Maybe this should be in tech but all the previous threads I read on it were here.

Ok sooooo what woul be considered the best combination?

250R chassis and motor with a sleeved down or reduced size piston and cyl?

250R chassis with a 200cc engine from something else?

200X chassis with a 200cc dirt bike motor? (with a thicker head gasket to prevent over heating of course ;) )

Would you then need to upgrade the 200X suspension to handle the extra power?

Has anyone done this kind of thing (MR ATC ???)?

Wonder if a nice 84 250R with an air cooled 200cc dirt bike engine in it would be any good... (nudge nudge wink wink, I got a project 84 250R for sale heheh)

[Ed Grimly]

Sorry about the thread header...
Should be 200R...

Long monday.

[Mr. Richard]

hey ed, i had a 84 250r with an 84 cr125 in it, it was as fast as a 250r on a flat track , they have always built more hp. in moto-x engines it was a kick to ride too,,, she was no trail rider but on the track it was a holy terror!!!!!

[jenndnn3]

Yeah I am interested in what I could get away with in a 200x roller....What would give me power(speed) but still be able to control the bike. OK So what... I want to ride a trike that isn't bigger then me. I was trying to do some research on some of the 2-stroke engines out there but I have been unsuccessfull so far. But I learned how and why they work and are faster. I Only want engine spec's There's gotta be something that gives every honda, yamaha, or whatever lineup ever produced as far engines go.

[Mr. Richard]

jenn the way i see it you need to keep your eyes peeled for a 83-84 250r and save your self alot of headaches,, conversions are alot more costly and time consuming, the early year 250r's would be perfect for you they start easy run good and will totally kill a 200x !!!:headbang: :headbang: :headbang: :headbang: :headbang:

[jenndnn3]

your prob very correct...right now Brian wants an 250r anyway so we prob pick one of them up first. And I can already see it ill get on it and say no way you aint gonna beat me....:lmao: In fact HE proposed I sell mine for a 250r......I am not so sure about that one...I really love my x. :iluvu:

[Mr. Richard]

you really love the X till you ride an R !!!!!!!!! then you will park the X,,,,,,,,,,,,, LOL YOU WILL ALWAYS FIND A WAY TO RIDE THE R,,,,, HE HE HE:chuckle: :chuckle: :chuckle: :chuckle: :chuckle:

[jenndnn3]

:lmao: Your starting to sound like Brian......Sheesh........ You know What I really really want.......That 3 wheeled witch.......IF I had the money :lmao: Yeah right I 'm dreamin there But I'd sell the whole fleet plus the hubby for that........Sorry honey I know you read this I am just kidding:D :D :D

[250sx]

Originally posted by kasey
you really love the X till you ride an R !!!!!!!!! then you will park the X,,,,,,,,,,,,, LOL YOU WILL ALWAYS FIND A WAY TO RIDE THE R,,,,, HE HE HE:chuckle: :chuckle: :chuckle: :chuckle: :chuckle:

when you can keep it running that is.

:lmao: :lmao: :lmao: :lala: :lala: :lala:

[atc330r]

jenn; go to ebay. 250r search completed items. there was a guy in salem about a week or so age that had a 83/84 250r 300? it didn,t sell. theres one on there now 400 1 bid in portland. these guys are right ride a 250r you,ll park the x. i still say there do do. i just put around 900 in to one. the r handles 10 x better rides 500 x better. there all junk waiting to die again

[jenndnn3]

There is one in salem I didn't catch it ?? Ouch I am loosin my touch. Did he have reserve....going to do search now. Watchin the one in portland

[atc330r]

idont think there was a reserve. i tried to find it last night, but ebay now only lets you go back a few days.i think in the last few weeks there was a guy on there that was looking also ( from salem ) and someone told him about that one also. so if you could go back and find those post ?? if you do end up with a air cooled. i hear there is a bike shop in harrisburg that has a few in there junk yard for parts. i dont know the name of it, but there cant be many right? be awear that the only case pistons you can get are art ( sudco ) they only go up to .030. @ 65.00 wiesco
goes to.100 @ 118.00. i can ask around here if you really want one. i would be looking for a watercooled. theres more after market stuff ( hot rod ) they will last more longer

[jenndnn3]

ok now you have my attention where is the junkyard in harrisburg ??? adress if you have it??? the hubby wants liquid cool anyway. I have a ton of time before I buy an R lookin into about 6 mths. If I sell the x I need to fix her up a little. There is a junkyard in salem ....Mikes is the name. Only one i knew of.

[atc330r]

iam not sure. i tan into some people that live up your way over the 4th. they were telling me about it. i,am thinking of chasing it down someday. guess look in phone book for bike shops there. there cant be very many. i know thats a harely town. so maybe just call and ask if they know. it does seem like it was a first name. they said he is fair priced ?????. i,am thinking hubby drives a truck ? if so and he goes to reno. tell him to get the add papers there. it,s great town for deals on off road stuff. i,ve bought alot of good parts there. used to go there 3 x a week. alot of race people in that city.

[jenndnn3]

Ok I will track this place down shouldnt be too hard. No my hubby does sales for electro test. So no outta state but he goes all over the state.

[ATCRYDER]

I am planning a 200R building using a 200X Chassis (83-85) but Im still unsure of the engine. Right now my idea is a blaster engine-itd be perfect (199cc 6 speed 2 stroke) but I could change my mind by the time I start the project (NEXT summer most likely).


Rob

[atc330r]

now what adout the ( if honda wanted a blaster engine in a 200x they would have made on??? ). you guys are missing the idea. a 200r dosn,t have valves.you know? the frame has more than 2" of travel

[jenndnn3]

ok so what engines could you get away with in a 200x? Yes it definatly have to be the older x's

[$"|"I|\|G|2@?]

yah what kind of engine would u be able to stick into an x chassis
?

[atc330r]

some one removed a post here? anyway i think you can put any engine in any frame as long as you have the tool needed. as for what engine the hot ticket used to be a cb 500 to a 350x. that was a 2cyl 500 not the 500/4, this thread wa about a 200r. which was a 2 cycle 250r pushed down to a 200. honda makes a 4 cycle 200r single. in a dirt bike frame. it looks very much the same as a 200x engine. we have a shop near here that brings new bikes in from canada. thats the only place i,ve seen that. put a 2375 vw motor in there

[Ed Grimly]

There was a guy not from from my place who put a Suzuki 550 triple cyl two stroke into a Suzuki Quad Sport frame. There was also a guy at the dirt drags who had a CB1000 4 cyl in a Fourtrax 250R frame.
Now these are extreme cases but proof anything can fit if you take the time. It takes a little more planning to make something that actually functions better than original though. A 2 stroke engine in a 200x frame would be cool. Especially if it were like a CR engine. Maybe a CR 125 engine would be sweet. Then you would have all the horsepower you want AND the light weight.
To keep it simple maybe an older engine so it is air cooled.
Like an old KDX 200 engine or something.

Then it is just a matter of lining up the parts so they fit right and hopefully balance out right.

[atc330r]

ed you got it a cr 125in a 200x. thats the ticket. anyone live rememder. the kaw mach 3 3 cylinder 2 cycle 500 cc. it was there production race bike. in i think 70/71. seems like they were a 5 speed in the day when a 4 speed was new. you could not keep the front end down. very fast and light. use that motor. ( trx/banshee ?).

[200x_Basket]

i have a 85 250r parts bike, 84 200x parts bike, a 83 250r parts bike and the parts to build a water cooled 250r. i may have to see about a 200 sleeve, 200x frame, 85 250r forks and rear suspension. i will nick name it frankenstien

[jenndnn3]

Did honda produce no engine in 2stroke between 125 and the 250. If so what is it?? What about the other manufacturers.

[Mr. Richard]

yeah they biult a MR 175 WHICH WAS COOL CAUSE IT USED THE SAME TRANS AS A CR125 I HAD ONE WITH A 125 TOPEND ON IT TOO........

[86waterpumper]

Here you go right here!!!! can't beat 50 bucks :cool:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1846895876

[200x_Basket]

http://cgi.ebay.com/ebaymotors/ws/ebayISAPI.dll?ViewItem&item=1848875079&r=0&t=0

[Mr. Richard]

hey basket i forgot about street bike engines!!! sept its a four stroker why put another four stroke in thoooo

[86waterpumper]

yeah...put in a built cr125 motor or something...back in the day they used to have 125 two stroke classes that raced all the time...I don't understand why they didn't make a 125 two stroke trike from the factory???

[atc330r]

come on people he said hes thinking he cant redo the bottemend him self. here we are spending all his money. on exotic toys by the time you put any of those motors in the frame. wire it, reroute the ex, reroute the intake,air pick up. the clutch,aline the chain. get a fuel tank to fit. he could have bought 350x brand new still in a box. just put a 185s/200s or get another 200x motor. you know the s motor are alot cheaper than a x on ebay. then you can have it going in a few days. bottom line is unless you can get a s motor real cheap, rebuild yours. as long as your trans is good. coruse you could go with a sl 80 or a 1200 kawie or a 490 yamy

[da_catt]

If you look at a 200x frame the top bar splits into two bars too late. most engines have a carb that goes almost straight back. the 200x carb is at a angle to the right side. If you put a different motor in you might have a hard time with the carb. I had to cut the frame just to put a bigger carb on the 200x motor. I was going to put a bigger motor in my 85 200x but the frame is small. If you want a air cooled 250r motor in in the 200x frame the chain is on the wrong side. The 200x suspension is no good. I ended up putting 350x forks and rear shock on my 200x.

[atc330r]

do you have a 250r motor to sell

[jenndnn3]

For those that don't know I suggested to stingray a bigger engine, in his rollin chassis. Especially since this thread came up. And frankly I wanted to see it done:D
I can See it now as you know teenagers love speed, he gets another 200whatever......he bores so thin and blow another engine. He in it for long haul of about the same amount of money. Next I agree puttin another 4stroke in this chassis is a mute point. Why bother then you can refer to what I always hear people say..."buy a bigger bike/trike/quad." As far as some of the arguments that have come up. I don't see the chain as an issue just flip the axle.
Carb now on mine it is not an angle, with a ton of room to grow. So I would like to know, is the earlier model chassis(83-85) a smaller frame then the 86-87?

[86waterpumper]

Stingray has said on here in the past that he does alot of road riding, therefore he doesn't need much suspension, if alot of jumping were invloved, alot more weight from a bigger motor would be a concern. If what he does mainly is race on the road, then I say put a big two stoke or whatever in it...

[Black Sheep]

jendnn. you can't just flip the axel you have to consider al the brake mounts many of which will not work "reversed" then you have chain sliders most likly the master cylinder will have to be relocated this is just the basics,some frames have subframe support rails shaped differantly on each side. the chain side is usually sticks out wider to accomodate the chain. the pipe side is usually sticks in narrower to make room for width of exhaust silencer. now you just made a motor swap a bigger project by reversing "just" the axel

[atc330r]

aman mr atc. take a 75$ motor send 1000 to put it in get it going end pu with a 300 $ bike that dont ride for sh$t. been thee

[jenndnn3]

I see completly what you are saying.......Just flipping without work, will not work. I understand that and prob should have clarified better. Caliper issues were not even a worry. The biggest concern I had Was the exhaust...I am havin hard picturing how it works or fits, I admit it but who cares I give up.

[Mr. Richard]

axle flip on a 84 250r is a piece of cake ,,,,, i put a 125 in a 84 frame and just flipped the carrier everything else was easy!!!! so it can be done!!

[$"|"I|\|G|2@?]

i do not do much jumping ..my most often type of riding is hiway:nono: ..and high speed drags across farm fields and ppls grave driveways so i dont really care much about the wieight of the engine or frontheviness fro that matter...what im looking for is a huge displacement air cooled 2 stroke motor...so i can have carzy torque fro wuick acceleration and a 2 stroke powerband fo hi speed ..as a matter of fact i was bidding on a 465 dirt bike yamaha motor whic i lost because some guy bid like 350 bucks on and i cant afford that!:bash: ..anyway..jenn you are right because that exactly what i will do if i get another 200x motor..bore it paper thin and blow it...

---thax for all the help...i really hope i can gather up some money and do this i want to see an ultralight chassis with a big bore 2 stroke as much as the next rider..lol!

[da_catt]

A friend of mine put a cr480 motor in to a 84 250r. It was fast. the engine fit good, not a hard swap at all. the cr480 motor was a 84 i think. can't remember for sure. the 84 is a 5 speed and the older ones are only a 4 speed. in 85 the cr480 was replaced with the cr500.