Problems can and do occur on older throttle bodies and serve to reduce the performance and reliability of the engine, but, can be addressed by a complete strip down, sonic cleaning and then replacement of any part that carries signs of significant or even partial wear.
Other related components you may wish to consider both for cosmetic and mechanical refurbishment:
Add as many parts as you wish to the same shopping cart, new O-ring seals 13295299001571716G00 & screws 1360502F00021120408A for example, and still only pay the same single fixed price shipping cost.
Please be aware that this part may have other applications within the Suzuki model range.