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Author Topic: First Project - 1980 SR250  (Read 370 times)

Offline Bubba1982

  • Posts: 9
First Project - 1980 SR250
« on: May 28, 2017, 12:55:18 »
This is my first project, I have had a few bikes over the years but always wanted to have a proper project and with my very basic skills I wanted a simple but fun bike that would allow me to give stuff a go myself as much as possible.

Plans at the moment are to:

De lug and tidy up frame
Pod filter & re-jet
Strip the rest of the engine, inspect (might need help with this)
Replace any mechanic parts needed & clean
Full new gasket set, service etc.
Clean up the engine but leave unpainted
New chain & sprockets, brake shoes etc

Then I hope to:

Install a kickstart
Minimal wiring, clean/hide switches
Replace front end with XV535 forks, yokes, hub & disc brake
18" rims back & front, new tyres etc
Some kind of new seat

I have been checking out all the previous builds on here for inspiration and information on which have been great!!

Are there any mods or upgrades recommended on these bikes while I will have the engine apart?

My first job is to strip & clean the carb, I think it pretty much needs new everything inside parts wise so just keeping the body and will clean it up & order all the new bits. Think I might need a new diaphragm cover as mine is a bit rusty & corroded on the inside too.

Thanks in advance





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Offline Bubba1982

  • Posts: 9
Re: First Project - 1980 SR250
« Reply #1 on: Jun 09, 2017, 13:00:44 »
I bought this bike in bits so have no idea on the engine mileage, it's had 16 owners since new so looking to replace any tired engine parts where needed. The piston & bore look to be in good condition..

Can any past SR250 builders offer any advice or upgrades I should look at doing when I have it all disassembled on the bench?

Thanks in advance


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Offline sbruton

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  • Posts: 320
  • Where the fvck is that money you owe me?!?
Re: First Project - 1980 SR250
« Reply #2 on: Jun 12, 2017, 16:06:10 »
Hi Bubba1982,

Congrats on the new project and best of luck with the build.  Since you're dealing with a basket case and are bound to run into a few snags along the way (i.e. missing, broken, or worn parts) my advice is to focus your time and effort getting it together and running - and then ride it, before you look at modding the engine.  It would be a total shame to spend money on engine upgrades to find out down the road that you have some other major issue... if you're planning POD filter and open exhaust take the time to get the jetting correct.  Save your money for good tires, drive train and brakes!  There's no point making the bike go fast if you can't corner or stop in a hurry!

If you haven't already done so, check out some of the threads by Jadus, who has done a LOT of testing, modding and documenting performance.

Best of luck with the build and l look forward to watching your progress!

Offline Bubba1982

  • Posts: 9
Re: First Project - 1980 SR250
« Reply #3 on: Jun 13, 2017, 17:42:53 »
Hi Bubba1982,

Congrats on the new project and best of luck with the build.  Since you're dealing with a basket case and are bound to run into a few snags along the way (i.e. missing, broken, or worn parts) my advice is to focus your time and effort getting it together and running - and then ride it, before you look at modding the engine.  It would be a total shame to spend money on engine upgrades to find out down the road that you have some other major issue... if you're planning POD filter and open exhaust take the time to get the jetting correct.  Save your money for good tires, drive train and brakes!  There's no point making the bike go fast if you can't corner or stop in a hurry!

If you haven't already done so, check out some of the threads by Jadus, who has done a LOT of testing, modding and documenting performance.

Best of luck with the build and l look forward to watching your progress!

Thanks much appreciated, yeah I agree that does sound like a more sensible plan.

Been looking at quite a few threads for inspiration and information, some great builds on here!!


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Offline Bubba1982

  • Posts: 9
Re: First Project - 1980 SR250
« Reply #4 on: Jun 23, 2017, 18:25:14 »




Progress.. sort of!! More stripping down. On the hunt for an XV535 front wheel to go with my new forks & yokes.


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