Posted by Neil on 16/5/2007, 12:52 pm, in reply to "Re: How do you derestict a Vespa LX50 4T?"
203.214.40.212
This work was done by a dealer - I can confirm that behind the variator is a washer that restricts maximum revs -this means removal of the variator removing the washer and reassemling -this requires a special tool to hold the variator still while the central nut is removed , the second mod refers to late model ET4 motors as fitted to the 4t zip - there is a rev limiter built into the HV block and a small cut is made into the block to disconnect a internal connection -it is then resealed -definately a job for an expert! .
The two mods lifted the top speed from 50k to 70k and a fraction more torque at lower speeds ,
The bike still feels like a 50 !
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