nice tip curare, gonna play a bit with reeds.
i fitted bottle between carb and reeds as it was shown in malossi web (between carb and rotary valve there)-B position- and carb settings changed a lot. still trying to find a needle-difusor combo that works.
adriannewnham, after think a bit about it, i thought that if boostbottle is fitted as u suggested, it just increases the chamber volume under piston, so when piston go to lower position it will apply less presure to gas so less volume of mixture will go through transfers to combustion chamber.
trying to arrange me scooter, left for city use for last 6 years, so it’ll be able to travel to Lisbon… now i hope that clutch could stand engine changes if properly jetted ;D