To get your bike running with the least headache after long term neglectful storage: Fuel system: the advice to get a new set of jets is spot on. The very small size of the jets in a small bike like the DR200 are simply much easier to replace as new rather than spend time cleaning and risk of damage. Clean the carb well and install new jets. Remove the tank, clean it, and install an inline fuel filter - the clear plastic kind. You might find petcock issues also...check the vacuum line is not loose/cracked (if desired or needed: replace OEM vacuum petcock with a simple on/off/reserve petcock...threads here explain and offer sources). Check the Idle/Mix screw...likely set too lean. Battery if battery is at all questionable...replace with new. Clean connections and check wiring harness for any wear spots, poor connections, etc. Spark Plug and wire: Inspect both for condition and replace if needed. Often a cleaning is all the plug needs. Oil & filter change: Change oil & filter. Air Filter: Inspect/replace as indicated. Often old filters are just rotten...mine was. The DR200 engine is very simple and reliable...give it clean fuel in a properly set up carb, good cranking, and clean air...it should run for a loooooong time!!! Enjoy Just my opinion: forget about performance mods. It's a 200cc bike.