Anybody here know anything about these old turds? I got one...re-discovered it in one of my buildings over the weekend, and am kinda throwing around the idea of maybe trying to get it running. I'm really trying to find out what MODEL it is....I haven't found one on the net yet that was the same. All I know is it is a '72, 250 street bike, and the side panel says "Torque Induction". Anyone got any ideers?



More pics here, if it helps...

http://www.classicgoldwings.com/forum/gallery/album.php?album_id=1721

tia


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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

http://www.scribd.com/doc/10854068/Yamaha-RD250350-19721973-Service-Manual  Hope this might help...

|UPDATED|12/17/2012 6:06:23 PM (AZT)|/UPDATED|


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I think one of my college roommates might have had on of those.  Is it 2 cycle or 4 cycle?

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Twin cylinder, oil injection, 2 smoker...just what ya need to give the enviro police the shakes!  
I don't know iffin it's an RD, a DS7, or what. I haven't seen one like it anywhere that I've searched yet. The DS7 seems to be common, but this ain't one of those, best I can tell. The RD is different, too. I'll check Larry's link and see if it helps.


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Joel Adams
C3VR Lifetime Member #56    
My Link


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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

 Most likely a RD-250.  They used to change them to fire on BOTH cylinders at the same time and run them in Hill Climbs. Called them a "TWINGLE"  They had awsome torque at low end for a small bore and the "Rs" will keep up the power band. 2nd gear wide open, dump the cluch, keep your head on the handlebars and point it up hill for a few seconds, trip the light at the top and go back down for another try.    Restore it, it's worth keepin.  Looks great in the picture.

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Tanks Mark! It do appear to be an RD250, now that I searched that, and found pics that match what I have. The link Larry provides above says that the RD was a 1973 model only, tho...I need to check the dang numbers on the bike....I'm going by the paperwork I have, and it shows it to be a '72.
btw, Larry..that manual is great, but I can't d-load it...dadgummit!
I did do a screen cap and at least got the wiring diagram!

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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Kind of neat to be able to help you..........even a little bit......

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Kind of neat to be able to help you..........even a little bit...... Some how there seams to be a studder with my reply...sorry!

|UPDATED|12/18/2012 1:26:56 PM (AZT)|/UPDATED|


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Very cool, I've had a few of these, even the Kawi 2 stroke triple "the triple with the ripple" cuz it handled like sh!t, bust was fast as F>>>!! 




|UPDATED|12/18/2012 7:27:11 PM (AZT)|/UPDATED|


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1975 Corvette Coupe 

I think this weekend I'll go rummage around "in one of my buildings" and see if I can find a motorcycle in there.  Yeah right!

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Well Joel, if'n you get it running, best hold on to your whiskers,  a whopping 23 horsepower is about to emerge from that thing ;)   (remember not to smile tooo much while going down the road....  )

|UPDATED|12/19/2012 8:26:38 PM (AZT)|/UPDATED|


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StingrayJim
NCM Lifetime Member #1936

Stingray's '76���������������������������� StingrayJr's '78���������������������������Lil Red '94

(click each one to see a bigger version)

Jimmy, I already figured I'd need a neck brace to keep from snapping my neck off from the overwhelming power on this thing....  The specs I have found show it to be closer to a ground pounding, asphalt melting 30 hp...

And, just for yer info-maychun, I also ride a Goldwing, weather permitting, every day. So, going from the 'Wing to this Yamama would be like going from the Cad-lack to a Vega....

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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

 Ya already have the Kaddy, now ya need a 76' C-3 witt a Vega Steering weel. Yull have the best of boat worls!

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