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My recent purchase RD250B

Started by grcamna3, April 19, 2025, 02:43:41 AM

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grcamna3

I just purchased my RD250B and drove from Davis,Ca. to Hurricane,UT.
I found it on Marketplace and drove through the night,out and back.
The last RD I had was 1987 and I jetted it too lean..
My vin is: 352-302064,is this an early one ?


I share my automobile parking space with my 3 bikes;I don't drive my car much.

Simmons1


m in sc

its a 75, so last year, but IMHO the most desired one w the disc brake and great paint scheme. great find

85RZwade

I post waayyy too much

Kawtriplefreak


RDnuTZ

#5
Nice find! I bought 1 used around 1979. Runner but needed work. Liked the paint scheme and went a little further inspired by RD400 Daytona. Cobbled together a Daytona style seat for it, added Red stripes down the fenders and added some early FPP pipes. Rode it everywhere including as main work transportation until sometime in 1980 when a friend offered me his 1977 RD400 basket case he took apart and lost interest in completing.

Sold the RD250 to a co-worker and warned him to replace swingarm bushings and showed him the play in there. He ignored it and ran the shit out of it until he crashed drunk on the hiway and almost died- but eventually fully recovered.  :omg:  Never saw the bike again or knew what happened to it.
1987 TZR250R Restricted Japan Domestic market bike (Project)
1977 RD400 (Project)
1974 RD350 (2) (Projects)
1973 RD250 (Project)
2022 Beta 300 X-Trainer, Yamaha Vintage MX, YZ (18)

SoCal250

Welcome :cheers: and congrats on the new ride! :whoop: Looks pretty nice and appears to be all original. I have one just like it sitting in my garage waiting for restoration attention.

The '75 model has frame/engine numbers ranging from 352-300101 to 352-311250 so yours is from the early part of the model year. (#1964)
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

grcamna3

Thanks,I'm glad to be a member here   :cool:
I had a nice set of Torque Engineering chambers on my RD350B;the one which seized-up in the AZ.desert in 87' because I jetted it too lean.

I would love to find another set of Toque Engineering chambers,been looking everywhere.

2steve

Quote from: grcamna3 on April 19, 2025, 04:24:08 PMI would love to find another set of Torque Engineering chambers,been looking everywhere.

And those of us who have experienced T.Eng chambers, fully understand. They sound marvelous.

RDryan

Wow, I got the same bike. The last six digits of the VIN read out as 310400 and mine isn't in quite as nice of shape as yours judging by the paint(particularly the fork ears and exhaust) and chrome. Mine also has a bit of 12,000 miles, I put on 6500 of those.

Nice find, I'm glad I live out in MA. otherwise I'd probably be broke...all those sweet bikes of the midwest.

RDryan

Quote from: SoCal250 on April 19, 2025, 11:41:56 AMWelcome :cheers: and congrats on the new ride! :whoop: Looks pretty nice and appears to be all original. I have one just like it sitting in my garage waiting for restoration attention.

The '75 model has frame/engine numbers ranging from 352-300101 to 352-311250 so yours is from the early part of the model year. (#1964)


So for the 75' model year there was 11,149 RD's produced? Now is that just the 75' RD250B or is that all inclusive of 250's and 350's made in the year 1975?

RDryan

Quote from: grcamna3 on April 19, 2025, 02:43:41 AMI just purchased my RD250B and drove from Davis,Ca. to Hurricane,UT.
I found it on Marketplace and drove through the night,out and back.
The last RD I had was 1987 and I jetted it too lean..
My vin is: 352-302064,is this an early one ?


I share my automobile parking space with my 3 bikes;I don't drive my car much.


I have 3 bikes and a scooter in my house. I used to have a shed but the floor was sagging and the walls were light construction with T11 plywood...it was old so I tore it down and replaced it with a tent but the wind howls thru it too much and one of the bikes got tipped by it over a month ago so now they all live with me. Lucky I'm single.

I noticed the chain lock you have on her. I hope you live in a thief-less  neighborhood. If there is such a thing. 

grcamna3

Quote from: RDnuTZ on April 19, 2025, 11:05:42 AMNice find! I bought 1 used around 1979. Runner but needed work. Liked the paint scheme and went a little further inspired by RD400 Daytona. Cobbled together a Daytona style seat for it, added Red stripes down the fenders and added some early FPP pipes. Rode it everywhere including as main work transportation until sometime in 1980 when a friend offered me his 1977 RD400 basket case he took apart and lost interest in completing.

Sold the RD250 to a co-worker and warned him to replace swingarm bushings and showed him the play in there. He ignored it and ran the shit out of it until he crashed drunk on the hiway and almost died- but eventually fully recovered.  :omg:  Never saw the bike again or knew what happened to it.

Point taken well about the swing-arm bushings:are they plastic ?

RDnuTZ

I don't know exactly what the composition is. They're used in a bunch of Yamahas from the era. They are black or grey and some kind of plastic far as I can tell- maybe graphite based or something as I think it was too early for nylon, Delron etc. in widespread use back then.

I'm sure Mark would know and probably chime in when he sees this thread.
1987 TZR250R Restricted Japan Domestic market bike (Project)
1977 RD400 (Project)
1974 RD350 (2) (Projects)
1973 RD250 (Project)
2022 Beta 300 X-Trainer, Yamaha Vintage MX, YZ (18)

grcamna3

Quote from: RDryan on April 19, 2025, 05:30:07 PM
Quote from: grcamna3 on April 19, 2025, 02:43:41 AMI just purchased my RD250B and drove from Davis,Ca. to Hurricane,UT.
I found it on Marketplace and drove through the night,out and back.
The last RD I had was 1987 and I jetted it too lean..
My vin is: 352-302064,is this an early one ?


I share my automobile parking space with my 3 bikes;I don't drive my car much.


I have 3 bikes and a scooter in my house. I used to have a shed but the floor was sagging and the walls were light construction with T11 plywood...it was old so I tore it down and replaced it with a tent but the wind howls thru it too much and one of the bikes got tipped by it over a month ago so now they all live with me. Lucky I'm single.

I noticed the chain lock you have on her. I hope you live in a thief-less  neighborhood. If there is such a thing. 

I need a thicker chain.
I'm waiting for a larger storage to open up(I only have a 10x10' now)and then I'll keep this bike inside.
I live in a bad area(comparatively)here in Davis and need to move.
I was considering moving back East,just haven't found the place I can enjoy yet.
I want to live in a more rural and quiet area where there's plenty of woods and friendly individuals;I live(6 years)right at a busy,noisy 4-way intersection where the red light is and the local police never seem to pull people over for too loud of exhaust cars and trucks.  :shocked:
I'm retired on SS and at 68 I want to enjoy peace and quiet.