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1981 GS450E Rebuild

  • Thread starter Thread starter Guest
  • Start date Start date
Duc Thumper rebuild thread! Surely good for at least five years! (Derived using the formula= 2 cylinders= 10 years.) :)
 
oldrookie said:
Duc Thumper rebuild thread! Surely good for at least five years! (Derived using the formula= 2 cylinders= 10 years.) :)
Click to expand...

Hahahahahahahahaha

Glad you didn't use capacity for the equation, that'd have me doing it in a year! :eek:

I'm quite keen to get my hands on it now, but I'm trying not to get too interested or excited in case it's a hunk of junk and/or it distracts me from getting my 450 done...
 
Wheel bearings arrived today:



Notice anything missing?

Yeah... parts fiche shows 3 bearings for the rear wheel, only two in that package... I've emailed the seller to find out if I ordered the wrong set or if there is indeed one bearing missing...

Front ones look ok though...
 
Last edited:
Took a few minutes today to call a tyre shop here in Brissie and hear what he had to say about dual sports for the 450.

The best suggestion he could think of is some universal block trials tyres, and apparently Googling should give me info on them, but I'm struggling to come up with anything useful.

He said they're fine on the road and he would be able to get them in front and rear sizes for the 450 rims, approximately $250 - 270 fitted plus tubes if necessary.

The only thing I can find so far is that they were *the* tyre to run back in the day and are currently used on modern trials bikes, but as far as finding actual sizing info and pic's and stuff I'm not having much luck...
 
Pete, if you're looking for a new project I'll sell you my fleetline for $1000. But you have to cover shipping :D
 
mlc216 said:
Pete,

I think these are probably what he was talking about... They were used a ton on the dual sport bikes back in the day.

http://www.tiresunlimited.com/ALL TIRES/Shinko/shinko_sr241_trials.htm

This is what I was going to run on my tracker... you know before I started stealing parts from it haha
Click to expand...

Yeah that looks like what he described, in line blocks is what he said, but not knobbies, and he said they handle fine on the road and are definitely road biased.

And yes, I know about the parts stealing ;)

Adler said:
Here's a bunch of pictures of what I assume the guy meant.

[URL]http://motorcycle.motorcycle-superstore.com/motorcycle/Trials%20Tire[/URL]
Click to expand...

Yes! And I seem to recall him mentioning MT43 now that you remind me... thanks guys :)

Leigh said:
Nobody, and I mean NOBODY, offer Pete a CB-X, ok!?!
Click to expand...

Awww but Leigh! Hahaha

Actually I was contemplating the Drysdale V8... ;)

mlc216 said:
Pete, if you're looking for a new project I'll sell you my fleetline for $1000. But you have to cover shipping :D
Click to expand...

Hahahahaha awesome! How many cylinders? Hahaha
 
Next build should be a traditional bmx with matching pads and skyway mags. Oh yeah
 
Ooooh, If only I can live my fantasy through you... I'm thinking Board Track Racer!!!


Before:

Ducati_mc_1954_ID209987497_400.jpg



After:

sportsman1.jpeg


f4l0qp.jpg
 
mlc216 said:
Next build should be a traditional bmx with matching pads and skyway mags. Oh yeah
Click to expand...

Hahaha... I dunno sounds like too much exercise for this little black duck ;)

Leigh said:
Hehehe..
Drysdale.. There's a blast from the past.

Did you know he's involved with that Carberry-Enfield v-twin jobbie?

http://www.carberryenfield.com.au/

I want one..
Click to expand...

Yes and yes :D

AMCN had an article on him not so long ago and covered the Carberry Enfield then... very tasty :D

Hoosier Daddy said:
Ooooh, If only I can live my fantasy through you... I'm thinking Board Track Racer!!!

Before:

Ducati_mc_1954_ID209987497_400.jpg


After:

sportsman1.jpeg


f4l0qp.jpg
Click to expand...

Awwww man... stop it! You're distracting me! :p

But yes, if that little Ducati works out then a vintage board tracker would be something very interesting to recreate...

The big question would be where to acquire a vintage bike for a reasonable price, but that's not a question I'm asking yet, everything is full speed ahead to get the 450 done first :D
 
Well of course... and here I am across the pond with a big old '80s Concord mountain bike with a chrome-moly frame that I've been looking for an engine to make one myself.
 
Hoosier Daddy said:
Well of course... and here I am across the pond with a big old '80s Concord mountain bike with a chrome-moly frame that I've been looking for an engine to make one myself.
Click to expand...

Haha that'll make a nice project one day ;)

My brief 30 second thought on it is to get something older though... '60's at least preferably older... make it the real deal... of course that would make it steel and I'll probably have some rust to take care of, but that's all part of the fun right :)
 
Well, no idea what I'm going to do with it right now and I'm not going to spend any more time on it until after the 450 is done... well maybe not much time anyway :rolleyes:

Tank has surface rust on the outside but I couldn't budge the filler cap to see what it's like inside. It feels solid though. Also appears to be straight and just needs cosmetic work outside.



The rest...



No idea what this is but it's a Ducati part...



You can see it has teeth on the back like a sprocket runs around inside it or something... ain't got a clue right now.

What a beast:



World's smallest carb?

 
Awesome score Pete, you lucky bugger. :dancing:
I will of course be expecting to see the restoration thread........................after you are done with the 450. :-\\\
 
What I assume to be one of the first desmo setups?



Fuel line?



Another bit like the other bit... two halves of a whole? I think these actually attach to the pedals given some YouTube video's I've seen...



Various odds and ends like brackets and spark plugs which leads me to believe that everything should be here to mount it:



And I suspect the box it came in is as old as the engine itself...



So there we go... as to what to do... board tracker? Not really an authentic use as board track racing was over by then, so maybe just a vintage pushie with the motor mounted? Maybe a Cucciolo racer?

http://photos.ducati.net/Museum-Duc...ucciolos/Cucciolo-and-Cucciolo/7961711_VZwBhK
 
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