http://www.howtomendit.com/answers.php?id=140618
To derestrict a Honda Spree, you typically need to remove or modify the exhaust restrictor and adjust the carburetor. This often involves taking off the exhaust pipe to access the restrictor and replacing it with a performance exhaust. Additionally, you may want to adjust the variator weights and check the air filter for optimal airflow. Always ensure that any modifications comply with local laws regarding vehicle emissions and noise regulations.
Have you asked shineray.co.uk
Remove the ring in the inlet manifold!
variator, exhaust,
change the sprockets
I don't think you can derestrict it because its 4 stroke the only way to really get it any faster is to get a 182 kit for it but then your sacrificing reliability there hope this helps :)
dont think it can be done . they are as good as they come
How can restrict a suzuki lt80 transport
most restrictions on mopeds are in the AIRBOX or in the EXHAUST.
how do you derestrict my aeon cobra 180 quad
yes you can but it must be done professional in case you break the bike