Vespa PK50 primary driven gear question

[psgnw]

Hi! My PK50 has a 75cc cylinder and I now want to change the primary driven gear to get longer gearing. Do anyone have a step by step guide on how to do this? I'm new to Vespa and I'm not sure how to proceed. I understand that the primary driven gear can be changed without dropping/splitting the engine, but it would be awesome if someone could explain the procedure of changing it

[3narf]

Hi! Are you on the smallframe forum? They are excellent with a wealth of specialist knowledge... helpful on here, but obsessed on there!

[psgnw]

Hi. I'm there as well Got my answer there. Thanks anyway!