Suzuki2Strokes.com

Sundial Moto Sports

Suzuki Two-Stroke Message Board
Suzuki2Strokes.com
It is currently Tue Oct 23, 2018 1:29 pm

All times are UTC - 6 hours




Post new topic Reply to topic  [ 42 posts ]  Go to page 1, 2, 3  Next
Author Message
PostPosted: Sat Jul 08, 2017 2:46 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Trying out a replacement topic because the Photobucket policy changes trashed my old topic.

My 1973 GT250 had bad crank seals & has moved on to a new owner. Also pulled my 1972 GT550 project bike out of storage.
We are doing cafe builds of both bikes. The GT250 is up first & here are the pics.

1973 GT250 before the crank seals went bad.
Image

Working on the motor.
Image

Painting the crankcase.
Image

Test fitting a Hotwing Glass RR1 seat. Will use a 1972 T250 painted a nice blue.
Image

Fun with cutting tools.
Removed the center stand brackets, detabbed the frame & made cuts for a future frame loop.
Image

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:23 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Making some headway with the rebuild.
ImageCafe-GT250-6 by jabcb, on Flickr

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:25 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Found an interesting forum post of a GT250 cafe build in Australia.
http://canberrariders.org.au/forum/index.php?threads/1973-suzuki-gt250-robyn-cafe-racing-commuter.84053/page-15
He made rearset mounts that used two existing frame attachments.
Image

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:28 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Making headway slower that I was expecting.

Motor will be all black except for carbs & polished case covers.
Ordered the Higgspeed chambers.
Have the K&N tapered pod filters with rubber end cap. (# R-1070 + the filter wrap)

Stock main jets are 112.5 & we are going up 10 to 122.5
Let me know if you experts think this isn’t enough.

Motor is mostly assembled & we are now polishing the case covers:
ImageCafe-GT250-7 by jabcb, on Flickr

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:29 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Hoping the project will pick up speed soon.

Its just about 8 weeks since we ordered the Higgspeed chambers.
Just ordered rearsets.
The K&N tapered pod filters didn’t work out, so we switched to the angled version.
Got a custom oil tank similar to the one member sbaugz has.
Frame is at the welder shop.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:29 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
A few years ago I got Jemco pipes for my GT750 & they did show up fairly quickly.

A forum member looked into Jemcos for the GT250 & was told they were designed more towards racing.
http://www.suzuki2strokes.com/forum/viewtopic.php?f=21&t=9440&p=139488&hilit=gt250+jemco#p139488

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:30 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
There be Higgspeeds here.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:30 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Making a bit more headway.

Did a spiffy job at polishing the engine covers & fork lowers. (We cheated & had forum member Sandman do the work.)
A few parts are at the painter.

The T500 rearsets are here — now need to figure out how to adapt them to the GT250.
Once we got that figured out, then the fame + wheels are off to the power coater.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:38 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Test fit of T500 rearset with trial adapter bracket made out of paper.
ImageCafe-GT250-208_rearsets by jabcb, on Flickr

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:39 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Test fit of right-side T500 rearset with trial adapter bracket made out of paper.
Not quite as clean looking as left side — gap between bracket & adapter is filled by a nut + ~ 2 washers.
ImageCafe-GT250-0213_rearset2 by jabcb, on Flickr

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:39 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
The left rearset attachment point is the stock mount for the muffler & passenger foot peg.
The right rearset attachment point is one of the 2 stock mounts for the driver foot peg.

We thought about the different options.
Went with a no-weld solution that allows us to reinstall the stock driver foot pegs.

Next step is to look at how the Higgspeed exhaust will affect this solution.
Then the drawings are off to the water-jet-cutter shop.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:40 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Now waiting with end in sight.
Parts are at painter & powder coater.

Will make a custom wiring harness.
Any suggestions on where to get wires with the stock colors?

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:40 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Interesting idea - hadn’t thought of that.
My final adapter drawings are at the water jet cutter shop. Now just need to order wire + some little odds & ends parts.
We’ve talked about going with a single piece design at some point down the road. Will keep your suggestion in mind.

This is my first foray into CAD software + digital machining.
Was pleasantly surprised at how easy it is.
Have two other items I’m working on: a bracket for a CL450 exhaust, and an underseat bracket to hold the battery + taillight on the GT250 cafe.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Jul 08, 2017 8:40 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
The water-jet-cut adapters turned out nicely:
ImageCafe-GT250-0246_rearset3 by jabcb, on Flickr

Parts are back from the painter & are looking good.
Powder coater should be done this week.

This is our first build & we are on pins an needles.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sun Jul 09, 2017 2:04 am 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3246
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Found really useful instructions for spoke wheel lacing on the GS forum:
http://www.thegsresources.com/_forum/showthread.php?220683-Spoke-Wheel-Lacing-Tutorial&s=cf446dec4e9c22c8a649e1ca3e8d5b19&highlight=mikesxs+spokes
And the results with NOS spokes:
ImageCafe-GT250-0291 by jabcb, on Flickr

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 42 posts ]  Go to page 1, 2, 3  Next

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 22 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Sundial Moto Sports forum © by Eric F. Kalamaja
Suzuki2Strokes.com