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Messages - PiotrKymco

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1
Downtown 300 / Re: Downtown 350i wont start
« on: January 20, 2026, 10:45:40 AM »
Hi
I check everything according what you wrote and all is ok and engine still do not start up. It fires up from time to time for second and that is it. Have no idea, all is ok and engine does not start up. That is weird and do not know how where to looking for.
It starts to be a little annoying.

2
Downtown 300 / Downtown 350i wont start
« on: January 17, 2026, 05:34:39 PM »
Hi there
Just bought fir my son downtown 300i 2018 in not working condition Well think easy to fix but I stuck. Engine crank and from time to time fire up for second or two and dies. And again.
1. Coil spark plug ok
2. Timing marks ok
3. Compression 11bar
4.injector ok ( gives to much fuel in my opinion but it is nice mist)
5. Changed TPS no change
6. Battery perfect

Now have no idea what to check or what that could be. Need help.

I connect tester unit and there is no fails nothing suspicious. And that is totally not understandable.

3
Xciting 500 / Exhaust cam decompressor noise
« on: February 06, 2024, 03:20:29 PM »
Hi Everyone
I have Kymco 500i 2014 and just changed ex cam and rocker, all oem. And it simce that the
Ex cam decompressor opening valves (randomly) about 3000-4000 rpm and it is a sound like nut fall to the head.
Engine starts to chocke and loosing power . Sometimes it runns smoothly but majority with that dound. It is not very big rocket science to install ex cam but coul i do something wrong?
Is something i should know installing ex cam? All is perfect including timing. Please help

4
Xciting 500 / Re: Cold start problem and other issues.
« on: December 21, 2023, 08:52:05 AM »
Thanks Ruffus.
Charging system and rectifier i handle already. The main problem I have is cold engine start up. It firmly cranks and fire up like want to start but when release start button ...stops. And that is like, as I mention, about 6 times. When warm starts up usually ok. Maybe some chocke problem? But do not know where to start looking for.

5
Xciting 500 / Cold start problem and other issues.
« on: December 20, 2023, 06:09:11 PM »
Hello everone. Its been a longtime and many scooters in my life before I do come back to Kymco, now Kymko Xciting 500i R ABS 2014. I bought it not working with crankin engine that wont start. I pull up a cam chain cover and see badly worn ex cam chain. Have change it for originalKymco. So one problem solved. Engine fired up with some problems about which a bit later.
I had a issue with ABS that start flashing when accelrate (weird feeling) but browsing the forumI did found the problem: rectifier. Idling was 13,5v but when accelrate rise up to 17v!! Order new rectifier, waiting to replace. But coming back to other issue: very bad starting issue. It is about 5-10 celcius. When I press start button (new battery installed) it firmly cranks and fire up like want to start but than dies.This procedure has to be repeated for few seconds like 6 times. Than when starts idling and warms up a bit, all come back to normal. THis is annoying. Before I do start  randomly looking for problem I ask you friends to share with me your opinion.
Piotr

Forgot few informations: ignition coil was faulty, is new now. Still have faulty codes : 33, 37 and 49 injestor was cleaned, just in case but that codes still exists.

6
Xciting 700i / Oil Service warning light My Road
« on: November 24, 2019, 02:51:04 PM »
I start new post not to mix up all information. Just pop up warning light "oil service" and the question is how to get rid of this? I already changed oil earlier.

7
Xciting 700i / Re: Rear tire cracks
« on: November 24, 2019, 12:18:56 PM »
Quote from: MJR on November 23, 2019, 03:32:04 AM
The muffler has to come off. You can get the swing arm off after that with a pry bar holding the forward pipe out a bit. I ended up doing this on the centerstand, disconnected the rear shocks at the swing arm, pushed it up, prying on the exhaust pipe, and slid off the right side of the swing arm. You will need a long Allen wrench/socket to get at the bolts recessed in the swing arm.
Do you have maybe bolt and nut torques? Especially for wheel nut and swing arm? If yes and Nm will be great.

8
Xciting 700i / Re: Rear tire cracks
« on: November 24, 2019, 11:34:10 AM »
Quote from: MJR on November 23, 2019, 02:13:43 PM
If it's this Diablo https://www.amazon.com/Pirelli-Diablo-Scooter-Moped-60-14/dp/B000GV85PA you will be lucky to get 5,000 miles out of it. If it's the Diablo Russo I have no experience with it.
Why you think only 5000miles and when Im lucky? Something wrong with that tires? That tires do not have bad opinion at all, so Im curious why?

9
Xciting 700i / Re: Rear tire cracks
« on: November 23, 2019, 10:43:11 AM »
Quote from: MJR on November 23, 2019, 03:20:28 AM
Same crap that happened to mine. https://www.kymcoforum.com/index.php?topic=26153.0



Not sure what model the rear tire was but it did show 69H for rating on the tire according to my old photos. I replaced it with the same size Bridgestone TH01R that my Burgman 650 uses. A special note I had a problem with the Bridgestone as well after a tire puncture but I think part of that problem is that Kymco lists too low of tire pressures for the weight of the bike (650 lbs) vs the Burgman 650 (615 lbs) which is 35 lbs lighter. I am now running 32 psi front and 36 psi rear in my Bridgestone vs the factory suggestion of 29 psi front and 32 psi rear.

I bought new tire Pirelli Diablo Scooter 160/60R14 ŚWIEŻE 160/60-14, hope will be ok for my beast. Any comments regarding that tire? I stay away from Maxxis tires.

10
Xciting 700i / Re: Rear tire cracks
« on: November 21, 2019, 08:23:13 PM »
Quote from: CROSSBOLT on November 20, 2019, 09:54:05 PM
Maxxis is Kymco's OEM favorite for tires and they are terrible! They wear fast and they crack early. Any major brand is better especially not following every tar snake or groove. Removing rear wheel is labor intensive. I have a Downtown 300i and ASSUME it is similar to the 700i so beware! First, take  deep breath, you will be here awhile! Remove muffler at the forward clamp to exhaust pipe. This avoids having to disturb O2 sensor. 2. Remove seat and cargo tub. 3. Remove right rear shock. 4. Remove rear wheel nut. Use a hard/soft but stout stick to block wheel rotation. 5. Remove rear wheel brake and let hose stay attached. Support with wire or lay on floor out of way. 6. Remove  all the bolts holding right swingarm cast plate. 7. The hard part is removing this plate the first time. It SHOULD come straight off but the inner bearing race and the shaft get rusty. Use a puller if possible or pry carefully with wrenches or prybars. The main thing is NO HAMMERS! It comes STRAIGHT OFF! Use penetrating stuff if you have some, light oil. Patience and persistance! 8. You may have a short fender to remove then the wheel.

Sorry CROSSBOLT previous quote was directed to you regarding swing arm. Her you can see the cracks.

11
Xciting 700i / Re: Rear tire cracks
« on: November 21, 2019, 08:21:19 PM »
Quote from: Tromper on November 21, 2019, 02:47:19 AM
Not sure where Load 69 comes in.
I checked Maxxis site, & older data and found one tire in that size, the M6135.

This tire shows a load rating of 66 like all the other tires I found in the range.
Die the 700 use a different, now discontinued tire?

Regarding the picture, are you sure I can remove right swing arm plate without removing pipes?

12
Xciting 700i / Re: Rear tire cracks
« on: November 21, 2019, 08:45:25 AM »
Quote from: CROSSBOLT on November 20, 2019, 09:54:05 PM
Maxxis is Kymco's OEM favorite for tires and they are terrible! They wear fast and they crack early. Any major brand is better especially not following every tar snake or groove. Removing rear wheel is labor intensive. I have a Downtown 300i and ASSUME it is similar to the 700i so beware! First, take  deep breath, you will be here awhile! Remove muffler at the forward clamp to exhaust pipe. This avoids having to disturb O2 sensor. 2. Remove seat and cargo tub. 3. Remove right rear shock. 4. Remove rear wheel nut. Use a hard/soft but stout stick to block wheel rotation. 5. Remove rear wheel brake and let hose stay attached. Support with wire or lay on floor out of way. 6. Remove  all the bolts holding right swingarm cast plate. 7. The hard part is removing this plate the first time. It SHOULD come straight off but the inner bearing race and the shaft get rusty. Use a puller if possible or pry carefully with wrenches or prybars. The main thing is NO HAMMERS! It comes STRAIGHT OFF! Use penetrating stuff if you have some, light oil. Patience and persistance! 8. You may have a short fender to remove then the wheel.

Oh Man, that looks like hours spending in my garage. I'm so pissed you can not imagine because tire is in very good condition apart from cracks.

13
Xciting 700i / Rear tire cracks
« on: November 20, 2019, 09:08:53 PM »
That is rediculous, I've never seen such thing before. Rear tire just crack in several places despite of the fact that is still roadable. Of course is Maxxis. WTF is wrong with this tire??? There is no other producer 69 load only 65 but I wont buy Maxxis anymore. And what is the most important thing how to remove rear wheel? Any vdeo or information? Must change that tire because affraid to ride.

14
Xciting 700i / Re: Faulty Codes My Road
« on: October 14, 2019, 08:23:26 AM »
Will check MAP sensor connector, but is hiden under rear plastic cover on airbox (according to manual) so will go there in some weeks in winter time while changing air filter. The situation with poor start up come back randomly and sometimes all is perfect for a long time and sometimes is even few times a day.
It is annoying because in 99% sturt up immediately you push the button and of course in a worst possible condition occur f*** up.

15
Xciting 700i / Re: Faulty Codes My Road
« on: October 13, 2019, 06:38:30 PM »
Hi Crossbolt, you can not imagine, all CELP showing blinks just dissapear like been erased somehow, so now shows no malfunctions. And all day long engine starts without question ask!! Will wait when that occur and get it filmed, so you can elp me to describe the right code.

MJR thanks a lot for codes, have similar but looks like mine is a short version, thanks a lot. Must describe faults first anyway.

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