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250R chassis setup
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Posted by: mikeboone

I just bought a 88' frame. I also have a 86 swingarm on the way that was stretched to plus 5". Just wanted to confirm all years swingarm bolt up to all year frames?

Can I run rear shock straight from frame to swingarm and elimnate the linkage on the R?

Are the 400ex and R rear hubs the same?

(I am setting it up for asphalt drags and wont need any suspension travel)

Posted by: zedicus00

no, no. and no. when im in a better mood i might type sum more details out. hopefully sumopne will beet me to it.

Posted by: HiZ

NO fuggin way!

First to have a noLink rear end you need a Nolink frame
Call Mike Walsh, let me know if you need the #
Production Frames will not work unless you call us and we can convert it

Hubs from a 400ex won't fit nor will A-arms Mo matter how many times Joe races Pro said they will. He's wrong, that's why his name is Joe racer guy.

Also 86-87 swingers are different than the 88-89 bolt/motor in the way. You're going to figure it out soon!

Is this a Joke post?

Posted by: HiZ

Actually if suspension isn't an issue just send us all of the stuff and we can weld you the perfect Hard tail up!

Posted by: devilwitoutacaz

I just bolted an 86 swinger to an 88 frame last night!!

Posted by: mikeboone

quote:
Originally posted by HiZ
NO fuggin way!

First to have a noLink rear end you need a Nolink frame
Call Mike Walsh, let me know if you need the #
Production Frames will not work unless you call us and we can convert it

Hubs from a 400ex won't fit nor will A-arms Mo matter how many times Joe races Pro said they will. He's wrong, that's why his name is Joe racer guy.

Also 86-87 swingers are different than the 88-89 bolt/motor in the way. You're going to figure it out soon!

Is this a Joke post?

Is this a joke? WTF? Anyway, this is real ****. I had a Drag 440 and eliminated the rear linkage as I want to do with the R. I am brand new to the R and dont even have the frame in my hands yet. I am piecing the quad together and it seems like a PITA trying to find out what parts work with what other year parts.

Ok, so I will need either 88 or 89 R swingarm, pivot bearings, and pivot bolt. I have a RPM -2 axle. Are all R carrier years the same? Thanks-Mike

Posted by: seven

There are a few difrences in the years
The rod on a 87-89 are longer so the top ends dont interchange from a 86 without changing the crank and such
The 400ex a arms will bolt up to a 250R but you need spacers to make this work.
A 400ex axle will work but you need 400ex hubs and the axle locking nut.
Swing arms are difrent but you can make them work with modifications.
The 86-87 swing arm length is I think (1 3/4 longer??) then the 88-89 ones. Plus its not a direct bolt on.
I cant remeber all the details becouse its been a while since I had my R. But The basics are there

Posted by: HiZ

Sorry about is this a joke thing, I was on two froums and I was thinking that this was part of the other one at the time of the post! Sorry about that smarty comment.

Your carrier size is the same, I also believe that you can utilize the 400 and 450r as well.

Posted by: beerock

the 86 swinger will work you just have to cut the ears off the 86-87 motor mount that goes through the swinger bolt and it will work.

You can bolt the shock the way you want but you might need to have a custom short length shock shaft like maybe a marvin shaw shock.

I think you need a rear shock regardless, it will help the bike hook up . i think without a shock at all the bike will bounce alot and not hook up as well

Posted by: 2k2-300exnj

what if u used an 86 motor and swing and motor mount on a 88-89 frame with all 86 motor mounts?i have a 86 motor in a 04 arens frame with 88 swing just eliminated the 86 style rear mount

Posted by: devilwitoutacaz

all I did was cut the ears off the motor mount like beerock said and everything worked fine. why does everyone make this so complicated?

Posted by: 2k2-300exnj

thats not the hard part the hard part is trying to make a 88 swing work on a 86 frame and understanding the differences in the frames and motors

Posted by: red33quad

empty your mail im sending you pm's

CR250 intake reeds clutch covers

red 33 quad

Posted by: JTRtrx250r

quote:
Originally posted by 2k2-300exnj
thats not the hard part the hard part is trying to make a 88 swing work on a 86 frame and understanding the differences in the frames and motors

2 ways to do it,

either weld in a crossbard w/ the motormounts for 88 swinger on 86, or just use a spacer to run the 86 swinger on the 88, or...like stated...cut off the ears, weld lower/upper motormounts to the crossbar

my project is an 86 but its getting a crossbar welded in so I can run any yr swinger on it, just not sure if I wanna make it so the extra mounts utilize spacers or not, will post pics when its done...1 of these days