Modern Vespa

Hi could someone help please.

First having some serious issues trying to get the spark plug cap off..

Let alone getting it out.

Also what spark plug is it I need Google reckons 300 odd different plugs all different sizes and codes 🤨

you can sometimes use a 17mm wrench to hook the casting lip on the big end of the cap and pop it off. but usually just straight ahead brute force clamping force of the fingers and swearing will take care of it.

if it's a LEADER 125 then a NGK CR8EB will do you just fine. widely available and cheap.

Quite a fiddly little job... It's the space within to do it

Yes mine is Leader I have no oil level screen and have to use dipstick