2001 Vino rev limiter?

[Zino]

The malossi sport is a solid cylinder I have put thousands of miles on them
When you take the stock cylinder off you will see what is holding your rpm’s down the exhaust port is only open 2/3 of the way
Your pipe with a malossi will push high 9000s to mid 10000 rpms

[Zino]

here is a guy fixing the restricted exhaust port on a stock zuma so it was more free breathing and rev higher
500- 1000 more rpm
But for a few more bucks and less overall work slapping on a 70cc malossi does so much more
No replacement for displacement
www.youtube.com/watch?v=cEeujuQDEJk&ab_channel=muffinflesh