Suzuki GSXR250 GJ73A

Hello
I have just bought a little suzuki GSXR250 GJ73A as a resto project. It needs a a bit of work. Nothing that cant be sorted but i need a little help with an odd few things.
Firstly the carbs are completely shot and need more work and effort to recover than is reasonable. I am struggling to find the model type of carb fitted they are mikuni's but which version?...asssuming they are hard to source what allternative would be a direct swap? Or does anyone have a decent set.
Secondly the wiring loom has been butchered. Would a GSXR400 GK73A. loom be a direct swap. I have read somewhere the the GSXR250 is a sleved down 400 engine. Would other 400 parts fit...?
Any thoughts anyone..
As side issue the wrong Cdi has been fitted and the coils and leads were all swapped and running to the wrong plugs...

 

Hello Chris
Firstly thanks for the info.
Sadly yes the carbs are well gone. They have been butchered even more then the wiring loom. Lots of part missing, mismatched internal parts, broken or damaged internals when someone attempted some "repairs". If they just needed a clean no problem but take my word for it they need a whole lot more then that...on a positive note three of the four could with effort be recovered. The forth or extream RH has by far the most damage.

The loom could be repaired but again as i am doing a resto a new or unmolested loom would be much more reliable.

The cosmetics are pretty good. But whoever has worked on the mechinicals has not really known what they were doing. It was sold to me as a non runner due to electrical issue.
That was due to the loom/wrong cdi and wrong regulator.. I have moded the loom and got the correct reg & cdi. It now has a spark but the carbs are stopping any chance of getting running.

I wil try the loom info

Cheers

 

Firstly thanks everyone for your input so far..

Carbs first...easy fix is to find a full working set but given that maybe difficult here is the news on them.

The bike has been stoud for approximately nine year. It was unprepared for standing so carb internals are all gumed up. Assume orings and seals are all dryed out cracked or will disintegrate when removed.
So full orings and seals will be required.
Full cleaning jod needed.
The main jet and starter jet on the extreame rh carb need replacing as the slot head has been stripped on both.
The junction pipe between Outside Rh and inner RH is missing. The whole of the air system that mounts into the hose between the out and inner LH hose and the missing out and inner RH hose is also completely missing. An help finding this would be great although i suspect getting the carbs right alone will get it running.
I believe the bike to be an SP as it has the adjustable fronk forks...help with frame numbers for the Sp would nail that down.

I will try and add picture but currently the system says the files are to big.
Its a black un with gold wheels. If that helps.
Wire loom Re GJ74 to GJ73 my fit but i dont know for sure but i am willing to try it and see...get intouch if it works i will let you all know.
Regarding the carb bit get in touch and let me know a price etc......

 

Cheer Si
I will be in touch...float bowls removed for internal inspection....parts needed will be listed asap.
I agree having done a little further reaserch it is not an SP but frankly that is only a side issue..
I have worked on a lot of bike and this one on the face of it is simple enough it is just a shame someone has lost ...misplaced or been dam right lazy in loosing some key parts..
But i have to say i am beginging to bond with this little GXSR..
I will get updating as i make progress..next up are the brakes..fronts are already stipped the rear seem to havevan unusual mount as it is a solid mount direct onto the spindle..not like other suzukis mounted onto a bracked that goes on the spindle...so the wheel has to come off..

 

Hello Simon

Thanks for all the information..here is where i am at.
I have repaired the loom i have or ar least sorted out the clearly obvious defects. It will be refitted with the coils on the correct sides and the hdt leads going to the right cyclinders. I have a correct cdi and regulator now so i think any further issues will be within the loom itself...i dont hold out much hope but will give it a try and see. In which case i will take your loom of you no bother....
Regarding the carbs...i am in two minds
So here goes.
Give me a price for the full reconed set.
Or if you want i will text and you can confirm the price..
I think to rebuild my carb because of the lack of use over the 8 or nine year that the bike has been stoud, everything will need replacing. How about taking mine in part ex at least you can get another set up and running and maybe make a few quid...
The rest of the rebuild is going good...brakes will need work but nowt new there but nothing too difficult.
The body work is pretty good apart from the tank...i will be in the market for a black one pretty soon...
I normally dont take long over restoration...i have just done a Yamaha TZR125 4DL Belgarda which i sold to a two stoke enthusiast. My latest was a Suzuki RG125F (Fun) Gamma again i recently sold this to a local RG nutter..
I have sat waiting for some attention a ZXR400 H1 which will be an esay restoration apart from bodywork..