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Hello everyone!  I'm a new owner of a Kymco Downtown 350 GT and just did the 1000km service today.  I want to share with you a problem with the new Downtown model.  It is the design of the air filter box that has the intake port positioned at the rear, towards the water flow discharged by the rear wheel.  In fact, yesterday I drove in a torrential rain on the highway for about 100km, took a break at a gas station, changed some clothes and started on my way.
 After I left in torrential rain, on sudden acceleration and in an overtaking, the engine lost power.  The problem disappeared after the rain stopped, in the next 50km.  Today, during the inspection, it was found that the air filter box was half full of water.  The Kymco Bucharest service promised to forward the problem to the factory.   It would probably be solved by a recall and replacement of the air filter box cover, with another one that has the intake hole repositioned.

Wow, why fix something that wasn't broken. It's not the good place for engine air intake for many reasons. It's quite low and on the rear where there is a lot of dirt, water, dust etc. Rear wheel area always takes a lot time to clean at pressure wash as it is dirtiest part of scooter. Lack of real wheel mudguard on 2024 model doesn't help either.  Air filter will have a lot to do for sure. Even on original Kymco DT 300 air intake placement isn't the best in business but it is a way better than 2024 model.

You are lucky that you didn't hydro lock your engine !

Hi !

Today I spent some time trying to figure out if you can change odometer readout in Kymco Downtown. I found a forum where many Kymco scooters were given odometer rollback. Getting odometer value change it is not so easy as you need direct access to chip having odometer miles/kms stored but once you get there is easy sailing. Have a look, somebody rolled odometer from 101 853 km to 27 000 km

https://cartechnology.co.uk/showthread.php?tid=78719

Also 2014 People 300GT, from 68 036 km down to 23 000 km

https://cartechnology.co.uk/showthread.php?tid=90658

Hi !

Recently I got a problem with rear wheel spinning while on center stand on idle RPMs. I traced the problem to chinese 20x12 13g sliders that where flipping inside the LGE5 Variator Movable Drive Face with LGE5 ramp plate ( post 2011 DT300i  CVT config )- one flipped slider was enough to lock CVT in "second" or "third" gear and made any acceleration from standstill a challange 

That's a pitty because when they worked, the scooter had a perfect gearing for my taste which I can't replicate using rollers. 

I'm thinking about purchase of Dr Puller 20x12 13g set but I'm wondering if they have any better anti-flipping capabilities ?  Real life reports would be much appreciated from you guys 

thanks

I would gladly to this job for you for 3000 USD with shipping myself from Europe and back + parts + labor included 

Seriously - get the parts and do it yourself - it's a one hour job replacing all drive train with new parts. I'd get new clutch assembly as dissassembling the cluch without special tool is tricky and takes time so don't bother and buy whole clutch assembly and that will give you almost plug and play experience.

I had similar issue when I put chinese 15g 20x12 sliders. Clutch was engaging on idle rpm's. When I swapped sliders for 15 g 20x12 rollers problem was gone   

I want to know if my engine runs on good mixture and if this is look healthy spark plug after 10k km. Of course i changed it already.
https://ibb.co/nnsYnXZ
https://ibb.co/ctnX7gJ
https://ibb.co/Q9WrnXt

Looks good to me !

Txs alot, interesting!
Would you check it please and give a short feedback what can be done with this diagtool?

Yesterday I cleared old, non-active, fault codes from ABS module. Checked ECU for current and stored errors - none reported. Watched live engine data by graph and numbers. You can also perform TPS reset using this tool.

So, where does one find one of these? I venture a guess if it works on DT300i ECU EFI it will work on all Kymcos with EFI and that little three wire plug.
Does this have cable adapters to fit nearly anything?

You can find this tool on several places:

https://fxtul.com/
ebay
Aliexpress

Depending on version you order ( there are three versions ) you get all the cable adapters

Is it this?


https://www.ebay.com/itm/374553805652?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1NJCc1sKFT_afUgDjVfG_UA20&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=374553805652&targetid=1644837435723&device=m&mktype=pla&googleloc=9015855&poi=&campaignid=20398863052&mkgroupid=157274709968&rlsatarget=pla-1644837435723&abcId=9317264&merchantid=6296724&gclid=CjwKCAjwivemBhBhEiwAJxNWN9gcHIQL_1HO1PJweoG2UiokoBpLQ7rbJYFfqs6HrIliha-xgaUTvBoCT2QQAvD_BwE

Stig

Not quite - it is version for Honda Kawasaki Yamaha. Look for version for Kymco, SYM, Yamaha.

I put new set of 13.5g 20x12 mm rollers. Now I have 7000 rpm screamer @ WOT  I have to put about 500 km to see if they stay or go.

I also cleaned all variator parts with compressed air and rag soaked in isopropyl alcohol.

I was using 14.5g for last 1000 km but could not get past 5500 rpm with wide open throttle from stand still start which made scoot a little big slugish. Gas mileage was great though -  3.1 L/100 km - and 5200 RPM @ 90 km/h, 5500 rpm @ 100 km/h.