vespa polini box exhaust jetting
Posted: Sun Dec 20, 2020 10:40 pm
Hi is anyone running one of these polini box exhaust on a std 200 moter I've got one just fitted on the tx 200 with a 122 but I think i just soft seized round the ring road slightly going up a steep incline full throttle. . Can't see much about jetting on the web and instructiond which came with it are for a different exhaust!! Scooter centres website says just 2 or 3 sizes up from a sip road 2 so i reckon I may need to be in the 125 area.