Spares for Fantic Motor Supersix 50cc 1990

contact the manufacturer at their spares department to get what you want

Looks like 2002

http://www.wemoto.com/bikes/Husqvarna/TE_510/05/
Wemoto has new parts, use this link for prices.
If your after cheaper spares and don't know a Husky wrecker, try ebay. Enter Motorcycle spares and accessories section, search TE 510 and all manner of stuff will pop up. Find a secondhand motor part or similar (if no gears/gearbox's) and check their "other items". This inevitably leads to a host of other parts TE510 as well. Links for sellers also shows up same type of parts. Searching for "transmission" will get you no-where except frustrated.Cheers

Try "just dirt bikes" in Victoria.
The phone number is (03) 9391 8334.
Vince or Tony

Hope this helps
regards Andrew Porrelli

Parts are on eBay but didn't see any spares.

Not sure as to your model. I did not know there was a Jetset 50. But on the 150 you remove the black panel that surrounds the the ignition switch which then gives you access to the lights. As to spares. You will need to try and find them on line. (Not easy)