Master cylinder on a GS400

[Guest]

Bike Bandit lists two master cylinders for a 77 GS400 - Nissin and ASCO. How do I tell which one I have? I can't find any identification on it except the Suzuki 'S' and 'Made in Japan'. From the picture on Bike Bandit it looks a little more like the Nissin, but the picture is a little rough.

Thanks

[focus frenzy]

you could try and see if it is marked in the casting inside the reservoir.
also it appears that the nissan master cylinder has a separate ring that holds the reservoir on.

[ptm]

Mine has that plate, and the bracket that clamps it to the handlebar looks more like the Nissin as well, so I guess that's the one.

Thanks for your help.

[focus frenzy]

Mine has that plate, and the bracket that clamps it to the handlebar looks more like the Nissin as well, so I guess that's the one.

Thanks for your help.

you're welcome!