new / old 2000 Kymco Filly 50 performance improvement

[PaulB65]

Hi everyone,

I have just acquired a 2000 Filly 50 from an elderly neighbour who rode 1000km in the first year and left it at the back of the garage since. It looks like it's just rolled out of the showroom !
The first service was never done, so I've done it all, except check the valve clearances. It runs fine, but the top speed appears to be limited to 35kmh / 20 mph  .
It's a French model, but here in France the speed limit for 50cc scooters and motorcycles in 45kmh.
Is there something that should be done at the first service to allow it to reach the intended maximum speed ?

Thanks in advance

    Paul

[Stig / Major Tom]

Hi everyone,

I have just acquired a 2000 Filly 50 from an elderly neighbour who rode 1000km in the first year and left it at the back of the garage since. It looks like it's just rolled out of the showroom !
The first service was never done, so I've done it all, except check the valve clearances. It runs fine, but the top speed appears to be limited to 35kmh / 20 mph  .
It's a French model, but here in France the speed limit for 50cc scooters and motorcycles in 45kmh.
Is there something that should be done at the first service to allow it to reach the intended maximum speed ?

Thanks in advance

    Paul

Hello Paul,  welcome to the forum!
You have a 50cc Kymco that has not run in 22 years!

Are you a religious man, Paul?

Anyway   - welcome to the forum!

Stig

[PaulB65]

Hi Stig,

Me ? Religious ? More like the eternal optimist !

There's no reason why a scooter that has not moved in 22 years wont work as well as it did when it last ran, provided it has been stored in a clean, dry, dark atmosphere. A closed garage in the south of France is dry, cool, dark and (relatively) clean.
After checking the air filter and fuel lines, chaning the battery and pumping up the tyres, it fired within 20 seconds. Even on the old gas (the tank had been brimed before it was put away).

I have a teenage son whose "real" bike (a 2 stroke 50cc Rieju RS3) is currently off the road awaiting reduild and the scooter will keep him moble until then. Not surprisingly, he is struggling with the much slower machine - his Rieju would do 50mph - so I'm looking for any experienced advice to point me in the right direction.

[Stig / Major Tom]

Paul that is great - and a testament to the quality of this little Kymco - it got high marks back in the day!
35kmh is .....slower than in should be.
Admittedly - few if any 4 stroke 50's can equal the pep of a good 2 stroke - and are not nearly as easy to mod for more speed as a 2 stroke.
You can try different roller weights - an Iridium NGK, premium fuel , full synth oil, a few incantations, a valve lash adjustment.
Folks put on flow-thru exhausts - the increased noise can mimic increased speed!
Cut-down or flow-thru airfilters  - see above.

Maybe things will loosen up after a tank or two of good gas?


Stig