Basket Cases

Need help finding information or parts for that old machine in your shed? Someone in here will know!

Moderator: Moderators

David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: YAMAHAYAMAHAYAMAHAYAMAHA

Postby David Lahey » Tue Mar 30, 2021 10:30 am

Greg Harding wrote:YES David, I suffer from it and lots of other things too!

Wow! That top photo sure set off my uncanny valley thingo.
It looks like someone added frame tubes under the motor to a :yamaha TY250 frame. I know it's possible to do stuff like that but why would you?
Looks like it's got DT wheels. That might be a clue


relax, nothing is under control

Mark K
Expert participant
Expert participant
Posts: 231
Joined: Fri May 19, 2006 4:14 am
Bike: TY175, OSSA MAR
Club: WDTC
Location: Brisbane

Re: YAMAHAYAMAHAYAMAHAYAMAHA

Postby Mark K » Thu Apr 01, 2021 1:21 am

David Lahey wrote: ..... It looks like someone added frame tubes under the motor to a :yamaha TY250 frame. I know it's possible to do stuff like that but why would you? .....
Is "why would you?" the right question? Why wouldn't you?
Why wouldn't you go to a lot of trouble and effort to make a modification which adds extra weight and presumably reduces ground clearance for no perceivable advantage? And my guess is - somebody said "Because I can."



David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Barn Finds

Postby David Lahey » Wed Apr 07, 2021 7:19 pm

Following on from Greg's amazing showcase of Basket Cases and Barn Finds, my Barn Find TY250A, that came out of its hiding spot on Boyne Island just before COVID, was thrust into the limelight last weekend at the Gladstone All Bike Classic bike show.
Very sensibly the Barn Finds were on display at the opposite end of the show to the glistening old and new Italian and Japanese superbikes and megabuck Indians and Harleys.
20210407_191652.jpg
20210407_191652.jpg (1.27 MiB) Viewed 757 times


Here are the entrants in Barn Find:
20210403_121710.jpg
20210403_121710.jpg (1.35 MiB) Viewed 757 times

20210403_121659.jpg
20210403_121659.jpg (1.11 MiB) Viewed 757 times

20210403_121648.jpg
20210403_121648.jpg (1.22 MiB) Viewed 757 times


and the judges chose the trials bike!
20210406_203246.jpg
20210406_203246.jpg (1.12 MiB) Viewed 757 times


relax, nothing is under control

User avatar
Greg Harding
Golden Basket of Smiles
Golden Basket of Smiles
Posts: 790
Joined: Tue Mar 03, 2009 7:33 pm
Bike: NUMEROUS
Club: LRMTC & SQTA

Re: YAMAHAYAMAHAYAMAHAYAMABAHA

Postby Greg Harding » Sun Apr 11, 2021 7:05 pm

Hi Everyone,

David Lahey wrote:Following on from Greg's amazing showcase of Basket Cases and Barn Finds, my Barn Find TY250A, that came out of its hiding spot on Boyne Island just before COVID, was thrust into the limelight last weekend at the Gladstone All Bike Classic bike show.

and the judges chose the trials bike!


Well done David, not surprising really as none of "Utilitarian ride to work bikes" have a story like "Mick Andrews" blazing his way around the world riding the :yamaha !

Mark K wrote:
David Lahey wrote: ..... It looks like someone added frame tubes under the motor to a :yamaha TY250 frame. I know it's possible to do stuff like that but why would you? .....
Is "why would you?" the right question? Why wouldn't you?
Why wouldn't you go to a lot of trouble and effort to make a modification which adds extra weight and presumably reduces ground clearance for no perceivable advantage? And my guess is - somebody said "Because I can."


Here are some more photos of that :yamaha "A" model, I am not sure why either as it seems to be :
"What the hell were they thinking?"
1618129969707.jpg
1618129969707.jpg (34.09 KiB) Viewed 637 times

On closer inspection, there are holes through the tubes presumably to mount a new bashplate and there is the age old argument that there should be frame tubes under the motor, what poppycock! Maybe the plastic/sheet metal bashplate failed and they wanted to start fresh?
1618129633142.jpg
1618129633142.jpg (58.27 KiB) Viewed 637 times

You are right Mark, it has added weight and reduced the ground clearance by at least 20 mm......
1618129946007.jpg
1618129946007.jpg (105.98 KiB) Viewed 637 times

1618131540670.jpg
1618131540670.jpg (74.72 KiB) Viewed 637 times

1574451317963.jpg
1574451317963.jpg (61.73 KiB) Viewed 637 times


2017 Newsflash: RUST IS THE NEW BLING !
Team Hardwood, the only licenced trials riders in Coffs Harbour!
Miles of Smiles
Greg Harding

David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: Basket Cases

Postby David Lahey » Mon Apr 12, 2021 9:17 am

Greg I agree with your logic about why they fitted tubes under the engine after the original bashplate falls apart.
You mention the metal-clad fibreglass bashplate being fragile. What about the first version that was just fibreglass which would have had an even shorter service life?
Attachments
20210412_091257.jpg
20210412_091257.jpg (2.32 MiB) Viewed 603 times
20210412_091314.jpg
20210412_091314.jpg (2.04 MiB) Viewed 603 times


relax, nothing is under control

David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: Basket Cases

Postby David Lahey » Mon Apr 12, 2021 9:36 am

This :yamaha TY250 bashplate is a home-made copy of the original made of super thick fibreglass and has survived pretty well.
It came fitted to a :yamaha TY250B I bought in the late 1990s that also had a lot of other home-made things so I'm thinking the owner was fairly creative.
One other home-made thing I remember from that :yamaha TY250B was the swingarm pivot inner bush didn't have the normal setup with a hole through it for the bolt. The home-made inner bush had a threaded hole in each end and was held into the frame by a hex headed bolt at each end.
Another thing was the rear brake backing plate axle hole had been re-bushed and they made the axle hole with much less clearance to the axle than the standard hole had. I'm thinking this was an attempt to improve the brakes but am open to other possibilities
Attachments
20210412_091400.jpg
20210412_091400.jpg (2.53 MiB) Viewed 602 times
20210412_091409.jpg
20210412_091409.jpg (2.49 MiB) Viewed 602 times


relax, nothing is under control

David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Kawasaki KT250 recommissioning

Postby David Lahey » Sun Apr 18, 2021 6:40 pm

This :kawasaki was a basket case about 20 years ago. Well not exactly a basket case, more of a scattered around two chook sheds, a cane farm workshop and the previous owners place of employment where he had accidentally left the carby in the ultrasonic cleaner.
A few months later it was rideable and this marked the beginning of 20 years of experimentation and restoration. Still not fancy all over but nice enough to look at and very nice to ride.
I've just put it together after rebuilding the motor, modifying the frame, modifying the forks, relocating the footpegs, painting the frame, making the rear wheel look fabulous and fitting new tyres. It sat completely disassembled (including the motor) for about 1.5 years so it was a bit of a challenge to reassemble it.
I took the photo to show the name board to the friend who made the lettering for me but might as well put it up here to add some :kawasaki flavour to the forum
Attachments
20210417_115605_HDR.jpg
20210417_115605_HDR.jpg (1.38 MiB) Viewed 470 times


relax, nothing is under control

David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

another Yamaha trivia post

Postby David Lahey » Mon Apr 19, 2021 10:24 am

Here are two sets of :yamaha TY250 twinshock engine mounting bolts.
Today I am doing an engine swap between two twinshock TY250s and noticed the difference in the bolts. One set has hollowed heads and waisted middles. Both of these things are standard weight reduction methods found on many bikes.
My question is (and I don't know the answer) which model TY250 had the lightened engine mount bolts as standard?
I've done way too much swapping around of TY250 frames and motors to remember which bolts originally came with which bike but I seem to remember that my TY250A which came to me in a very original state had hollowed head bolts here and there (on the handlebar clamps and the upper fork tube clamp bolts) so I'm leaning towards the lightened bolts being from an A model TY250.
Can anyone confirm this theory or provide an alternative answer?
Attachments
20210419_095209.jpg
20210419_095209.jpg (1.3 MiB) Viewed 437 times


relax, nothing is under control

tat ty
Expert participant
Expert participant
Posts: 209
Joined: Sat May 07, 2005 6:12 pm

Re: Basket Cases

Postby tat ty » Mon Apr 19, 2021 4:20 pm

I can check for you, though not until this weekend David. I have a few A models that have never had the engine out.

Alastair



David Lahey
Champion
Champion
Posts: 3771
Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: Basket Cases

Postby David Lahey » Mon Apr 19, 2021 7:28 pm

tat ty wrote:I can check for you, though not until this weekend David. I have a few A models that have never had the engine out.

Alastair

Thanks Alastair

I had today off work and did a motor swap in that :yamaha . The A model motor that was in it started making a funny noise so I pulled the cylinder off and had a good look at things. It needs a rebore and a new conrod kit and I'll probably post up some photos later of the interesting things that I found inside.
I also fitted the blue Peter Paice Replica tank, seat and side covers, which better match the look of the B model engine.
The :kawasaki is now run-in and ready to ride trials on.
This coming weekend is a local trial and I'm still deciding which bike to ride.
Attachments
20210419_170625.jpg
20210419_170625.jpg (1.65 MiB) Viewed 401 times


relax, nothing is under control


Return to “Twinshock & Classic Trials”

Who is online

Users browsing this forum: No registered users and 4 guests