Welcome Kymco Owners!
I've tried to find EBC brake pads.. it wasn't easy.EBC pads:Front: FA197 I found them on Amazon for $28 note says to not re-use old shims I presume the FA197HH would also fit. http://www.amazon.com/EBC-Brakes-FA197-Non-Asbestos-Organic/dp/B006B281LG#Rear: SFA356 Amazon for $20. http://www.amazon.com/EBC-Brakes-SFA356-Standard-Scooter/dp/B006O764CGI think the photos are not necessarily the same as the real parts. Scoot Safely,
I agree further research really points to "Pilot jet circuit" as you stated. I never checked that screw and when it was "cleaned" by the dealer by the 2nd owner that bought it clogged they might have messed around with. My performance issue is coming off idle to 1/4 turn and this appears to be the exact range of the Pilot jet. The air bleed has to be the issue. Maybe the screw was never moved but it needs to be removed and then sprayed with carb cleaner and compressed air and a thin wire poked in the hole. Overall, the scoot is running well just passed 13K miles. I road a friends 2-stroke (2-smoke) Vespa P200 from 1980. Really fun to drive and it has a clutch and gears! I think it is a 5 speed. However, going over about 45mph? And the rake of the front wheel / fork is too steep making it twitchy. I couldn't imagine going 65 mph or faster on the highway.
Has anyone ever replaced the rear brake pads on a Kymco Grandvista 250? I have been looking online but none of the pictures match the picture I took of my worn-out rear brake pads?