Carburetor kymco 250 people s and high speed problem, black spark

[RatBob]

I'm getting mixed up with kmh to mph conversions.

This is the run I made after the scoot got back from the shop, freshly tuned, the Kymco mechanic says this is typical of the breed. They also tend to run rich from the factory.

[Ernestt]

that is a good looking scoot

[escor]

Hello

Thanks to all

I did clean today the carburetor with break cleaner and pressured air as well as I could.

Then I went to the highway. Now the 250 runs up to 68 miles, maybe 70 (about 110 km/h) without problem.

This ok OK and all over much better then before. Smother and stronger.

The acceleration is also better: the kymco runs up to 105 quit direct. After 105 the scooter gets weeker. 110 is now "easy" to go. And after 110 km/h you have to be very patient to get one km/h more. But you can go maybe up to 120...if you are patient on the high way.

I hope, that it will be more better when I do drive more.

By the way: I tried today a new Daelim 250 S3. This scooter runs up to 130 km/h as hell, then the scooter is getting slower up to 145 !!

Of course, the Daelim has injection etc.. And then I tried today (I did visit my dealer...) also an older  honda forza 250, this scooter went also up to 125 without Problem.

So: the 250 Kymco is still not very perfect for top speed driving, but I can live with him.

Thanks to all for helping me

Edi

[RatBob]

I ride mine at 60-65mph all day long no problems and I get a kick out of the peole who see a scooter don't expect it to be as quick as it is.

[escor]

Hello all

I cleaned the carburetor and the old nozzles with break-cleaner (as I write above). The result was, the kymco runed faster, but not perfect.

I bought yesterday two new nozzles. The big one and the small one in the middle of the carburetor.

Now, the Kymco runs up to 85 miles  !

Incredible...

So the problem was, that there was a film or covering on the nozzle even if the nozzle looked clean.

Great!!

I am very happy.

Thanks and all the best

Edi

[Mr. Paul]

Thanks for the update Edi! Ride on brother!

[Redk]

Excellent !

Still, better to relax and enjoy the fun riding. Be observant and take advantage of all that is around you.
Fair WX motorbike riding has Got to be among the best things around !!!

HI-speed WOT runs demand you focus on the immediate situation and so many of the nicer things are missed.
redk

[escor]

Hi REDK

You are right!

I do drive slow and enjoy the landscape. But sometimes on the highway there a trucks and then it is good, if you can overtake them fast and quick.
And, of course, in the mountains, you need to have some power.

So it was more: I don't like an car or engine, which does not run like it should. And if I know, that there are 20 miles speed missing, I just "must" detect the reason for the missing top speed.

I prefere to drive safe and spending some more time to arrive, that is for sure.

By the way: the kymco is smooth gliding, the engine is really rolling. The Yamaha X-Max ist more agressive, the engine is more responsive, nervous. The kymco is perfekt to cruise.

Thanks


Edi

[Redk]

Edi, it would be great if you would post some pics from your travels!
I like pics !!

Seems like you see some interesting things.
redk

[hypophthalmus]

Escor, I understand what you mean by wanting the engine to be working right. I was bothered by this on your behalf, and I'm glad you found the problem.

A 65 mph scooter is fine. An 85mph scooter running 20mph slow is not.

[escor]

Here we are....

[escor]

and more...

[escor]

more

[escor]

last

[Redk]

WoW !

Look at all those hairpin turns !
That must be Great fun !
redk