EDIT 20th May 2013:
These kits are now available for GK76.

Hi all,
I have put the Suzukis in the pipeline. Probably finished in about 8 weeks. If you are planning to overhaul your carbs in the near future you may want to wait and give yourself some options. You can see the Yamaha 3TJ1 kits here.
http://litetek.co/Carb_Kit_Yamaha_3TJ1.html
Quite similar to the Suzukis. In fact they share a lot of parts. Some of the assembly guides on that web page will be useful for the Suzuki owners as well.

I do not believe there is anything inherently wrong with the carb design, but it has a lot of seals and o-rings. If you have not replaced them then you should. Nitrile only has a shelf life of 15 years and that is if it is stored in ideal conditions. If you have original o-rings in your carbs then they are rotten. Nitrile, what your o-rings are made from, suffers from embrittlement if exposed to stale fuel, Ethanol blends or UV light. As for sizes, only one of the o-rings used in the Yamaha that I mentioned is a standard size. I expect the Suzuki will be the same. If you are using over the counter o-rings because they are 'close enough' then you can't expect them to perform as designed. If you live in a country where Ethanol blend is the norm, like I do, then just forget Nitrile it is hopelessly inadequate. See this research paper
http://info.ornl.gov/sites/publications ... b27766.pdf
cheers
Blair

so, do these work with the gk73a?

I am doing kits for the Bandit as well, and there are some posts on the web saying that they share carbs with the GK73A. Though I won't be able to confirm this until I find a parts book for the GK73A. Will post here when I have the definitive answer.
cheers
Blair

One of the members sent me the parts book for the GK73A, and the parts for the Bandit appear to be identical to the GK73A.
In any case I will be doing the GK73A, GK76A and Bandit.
cheers
Blair

These kits are now available for the GK76.
A big thanks to Marsbar for lending me a float bowl.
I put another topic in the approved traders section and it will cover all the 400 grey bikes.
The direct link is http://www.litetek.co/Carb_Kit_Suzuki_G ... GK76A.html
I will not be able to get the GK73 and Bandit finished until I can find someone willing to lend me a float bowl.
cheers
Blair

hello i have a gk71f do you have the carb kit for them? many thanks nick

Hi Nick,
Sorry, no have. I could not find a parts book for that model, but I believe that model has the twin throat carbs as in this diagram http://www.cmsnl.com/suzuki-gsx-r400-19 ... ml#results
I do not have any plans at this point in time to make kits for those carbs. Bandit/GK73 are in the pipeline now.
cheers
Blair

could you not do a one off? lol need to rebuild mine, and yes it has the twin carb do you know if there is any other that would fit?

Thanks Nick

Well I could do a one off but it may be a tad expensive. I use genuine parts for sizing when I put my kits together and sometimes get genuine parts from suppliers on Yahoo Japan. Make a list of the part numbers and start googling. The shipping cost will be horrible.
Blair

Nick, I sent you a pm.