Suzuki 2 Strokes

Hi Guys ,
I decided to powder coat my front brake caliper and master cylinder over the winter . ( GT550 m )

I ordered what I thought was the correct parts , however when they arrived they did'nt match what I had taken out !!

I was then advised that some kind person had replaced my master cylinder with a GT250 unit .
can someone please advise if I have the parts in the correct order to be fitted as I cannot find any info on line .

First in is spring open end , black rubber clips into small end of spring , then small thins brass disc , followed by ali piston c/w rubber seal , then all held in place by a circlip then fit rubber boot ???

Thank you

( damned photos won't upload !

Have a look here at the exploded diagram of the master cylinder:

http://www.oldjapanesebikes.com/mraxl_G ... /index.php" onclick="window.open(this.href);return false;

would that mean you have an incorrectly sized master cylinder? I know many GT550s had twin discs, while the GT250s had single disc.
I am not sure of the bore sizes, but it would make sense that on a bike with two calipers you would have a different size master cylinder than a bike with one caliper. You might wish to check this with one of the more "model specific" experts on here.

GT550s never had twin discs as standard. People used to fit them by using a 750 left fork leg, caliper and m/c until the later models with 'twin disc' fork legs.
GT750 master cylinders had a 'D' underneath, for 'dual' and was a larger diameter piston.

Alan H wrote:GT550s never had twin discs as standard. People used to fit them by using a 750 left fork leg, caliper and m/c until the later models with 'twin disc' fork legs.
GT750 master cylinders had a 'D' underneath, for 'dual' and was a larger diameter piston.

I stand corrected. Thanks for setting me straight.