Wonder why Yamaha skipped the '71 RT1-B lower chain guard? Maybe they tried to save a buck (Yen) in '71 but the 360 really needed it so they put it back on the RT3?

「ウケる、見て。チェーンガードつけてあげたのに、あいつテニスシューズの紐だるんだるんで歩いてるよ」

That is interesting..  

Both schematics im looking at show it 70/71 yet 71 lacks the breakout, in the parts list.. hmm.

Curious,  Is the 71 trailing arm setup (mounting area)  for one? 

Drac





 

I'm pretty sure the RT1-B had the lower chain guard.  

My guess is there is a "glitch" in whatever cross reference was used? Happens quite a bit both ways.  Sometimes there are parts listed by a cross reference that do not fit that model and sometimes parts that do cross over skip a model.  

Those model cross references are a great guide, but they aren't 100% reliable and accurate in my experience.  

My parts book from that era covering RT1 and RT1 B , shows the lower chain guard as being fitted to both .

would a lower guard from a 70 ct175 work on the 69 dt1b?

i can only fine one in uk and shippings 30 plus they want 55 so after tax it would be 90 something. then theres the ct175 for 33 bucks tax and ship? could i just make it work? i bought a dt1 360 one but it doesnt quite fit. maybe i could make it work. its a holey model one and i know im looking for a solid one now since the solid are the earlier models

Hum...well my '71 RT-1B was new out the box when I purchased in '71 from AlFegoda's Motorcycles in San Francicso,  it did not have the lower guard. Picture of it when I brought it home. Could have just been left off, who knows. Would the dealer install it presale or did it come from the factory installed? When I restored my current RT-1B I installed a lower guard and when doing so I thought " never remember my first RT-1B having this guard".  Lousy picture, Polaroid from 55 years ago. Sorry can't get the picture to load? Not quite sure size is small ? 

My picture is 100 KB. Can anyone direct me how to post such a picture? Thanks

mark i think it said pics are broken. you have to upload threw third party. someone like imgur.