Use the parts fiche from any Suzuki dealership. The forum's favorite parts house is Parts Outlaw (www.partsoutlaw.com) in Florida but even your local can be useful. Keep in mind that they will take about two weeks to get to you - a week to get to them from the warehouse (your local is the same way as no one keeps parts in house for these old bikes) and than a week to get out to you. That last part is slightly longer than your local but they are usually cheaper in the prices than local can be.
So the carb bowl gaskets for your bike would run you (this includes the part number you need)
13251-05C00 - $6.31 each
I would still reach out to Robert Barr with CycleOrings to see if he has your orings; he's a member here so send him a PM
So the carb bowl gaskets for your bike would run you (this includes the part number you need)
13251-05C00 - $6.31 each
I would still reach out to Robert Barr with CycleOrings to see if he has your orings; he's a member here so send him a PM