Early air-cooled Yams
#1
Posted 16 March 2010 - 20:17
I have a couple of YR3 motors to play with so we might get a passable replica though I don't think the RD56 frame is worth replicating. Anyone know much about the early aircooled ones?
David
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#2
Posted 17 March 2010 - 18:53
#3
Posted 17 March 2010 - 19:09
Weren't the old air cooled yams vertically split?! I had a TD2B and I'm sure this was vertical split crankcases. I remember it being a bit awkward to work on when I broke the crankshaft and had to take the thing apart. I was never any good at mechanics and it just wasn't the same after that.
...and the TR2 wasn't, or was it the other way around.
#4
Posted 17 March 2010 - 19:17
David
#5
Posted 17 March 2010 - 22:48
#6
Posted 18 March 2010 - 19:51
I think Yamanatic (Warren) has one up in Wisconsin He's got a TZ750 too!!!
David
#7
Posted 19 March 2010 - 03:07
http://www.youtube.c...emp-real_rev-rn
and another
David
Edited by Coupe Kawasaki, 19 March 2010 - 03:11.
#8
Posted 19 March 2010 - 03:13
Can't use the link's at workHere's an interesting one starting up!
http://www.youtube.c...emp-real_rev-rn
and another
David
hi all ... all in bed tut tut !!!!!
Edited by SADBATCCM, 19 March 2010 - 03:17.
#9
Posted 19 March 2010 - 07:45
Can't use the link's at work
hi all ... all in bed tut tut !!!!!
This is pure music to my ears
music to wake up too.
Maybe thats why I have Tinnitus
Edited by mba21, 19 March 2010 - 07:53.
#10
Posted 19 March 2010 - 18:22
David
#11
Posted 31 March 2010 - 08:44
Bought this from a guy in Markyate, near St. Albans for £215. Quite a shock to ride after the Honda and I had no idea what I was letting myself in for.
It was ultra peaky not only due to the barrell porting but also I think due to the huge carbs and the central matchbox type remote float. The crankshaft mounted clutch worked like an on/off switch and was impossible to slip, so getting under way was a case of paddling along as fast as you could and giving it a huge amount of throttle.
It was not too reliable as it broke crankpins on three occasions and the frame was always cracking. Luckily I could fix it myself, forever brazing the frame and rebuilding the engine. The vertically split cases would come apart and go back quite easily by heating them in the oven and when rebuilding, putting the crank in the freezer.
After half a season of constant struggle with the reliability, a bought a YDS3 road engine from Jack Paddock breakers in Walthamstow and fitted that. Kept the magneto and expansion chambers so it still made all the right sounds but at least was tractable and reliable at last but a bit slow.
It was eventually replaced with a TD2.
#12
Posted 31 March 2010 - 17:19
#13
Posted 31 March 2010 - 20:07
Is that a CB77 based racer Peter?
yes if you have a bump now they don't let you wear it again Phil:rolleyes:
David
#14
Posted 01 April 2010 - 07:50
Honda was standard road bike 1964 model with super race seat and ace bars bought very cheaply from Jim Wells motorcycle empoium in Romford Road. Was fast enough for me and electric start guaranteed a swift getaway, even in open races, he he!
#15
Posted 01 April 2010 - 07:59
Graham, the USA flag was put on by a mate when the helemt was new. I wasn't too pleased about it but it wouldn't come off.
David, yes Honda is CB77 305cc. Beautifully made, reliable and nice to ride.
Best wishes, Peter.
#16
Posted 07 April 2010 - 00:02
Addendum
Graham, the USA flag was put on by a mate when the helemt was new. I wasn't too pleased about it but it wouldn't come off.
David, yes Honda is CB77 305cc. Beautifully made, reliable and nice to ride.
Best wishes, Peter.
Hi Peter Sorry I missed this...the old bonce doesn't work properly all of the time
I rather liked my friends CB72 (as a road bike) I seem to remember someone taking the 305 out to a full 350 and I quite like the US flag Graham (well I would wouldn't I living out here )
David
#17
Posted 30 April 2010 - 22:11
I rather liked my friends CB72 (as a road bike) I seem to remember someone taking the 305 out to a full 350
Read's in London did a 350 kit (Read Titan)
#18
Posted 30 April 2010 - 22:15
David
#19
Posted 30 April 2010 - 22:22
I had a kit from them that was 325 for the CB and that went well with the 250 head and the '68 cams. Went on the train to pick up the kit from them in Stratford (London) I think
David
Leytonstone , actually , Dawn
#21
Posted 01 May 2010 - 04:52
Edited by lukebaby, 01 May 2010 - 04:53.
#22
Posted 01 May 2010 - 05:57
David
Edited by Coupe Kawasaki, 01 May 2010 - 05:58.