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General Discussion / Re: How many miles do you have on your Kymco
« on: April 20, 2021, 02:44:43 AM »We don't know your locationFlorida.
Miles or kilometers?
Stig
Miles
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Miles
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General Discussion / Re: How many miles do you have on your Kymco
« on: April 14, 2021, 05:02:48 PM »
Just recently saw an xciting 500 with 32k while out riding and today saw a super 8 with 43k in the parking lot. Impressive I would say.
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Xciting 250 / Re: Vibration at high RPM/SPEED
« on: April 05, 2021, 04:02:20 PM »
Small update. I ended up ordering a pair of foam grips so hope that should help somewhat.
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Xciting 250 / Re: Injector not getting power.
« on: April 02, 2021, 05:05:34 PM »Isn't it a good feeling?For sure!
However I can't get the check engine code go away... I disconnected the battery overnight but that didn't help. Still same 33 code.
The manual said the symptoms would be the engine does not start or operate but I drive it just fine.
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Xciting 250 / Re: Vibration at high RPM/SPEED
« on: April 02, 2021, 01:32:35 PM »65 mph on mine is red line. What's red line now with the new sliders?I tried pushing it to 80mph(8000+ rpm) yesterday two up and it did fine except for engine vibration.
Right now 65mph is just slightly over 6500rpm. 23g tech pulley flying roller II sliders and malossi belt.
I am actually starting to think that what I describe as a vibration is really a normal motor vibration for a a 1 cylinder.
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Xciting 250 / Re: Vibration at high RPM/SPEED
« on: April 02, 2021, 02:00:35 AM »
So, got the bike fixed all good now.
However as for vibration it seems perfectly smooth up to about 65 mph when vibration starts and gets gradually worse with 70+ being uncomfortable quite a bit. With new sliders the cruising rpm went down so that's probably why the vibration now starts at a higher speed. So it is definitely engine speed related and not ground speed related.
However as for vibration it seems perfectly smooth up to about 65 mph when vibration starts and gets gradually worse with 70+ being uncomfortable quite a bit. With new sliders the cruising rpm went down so that's probably why the vibration now starts at a higher speed. So it is definitely engine speed related and not ground speed related.
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Xciting 250 / Re: Injector not getting power.
« on: April 01, 2021, 11:00:31 PM »
IT RUNS!!!!!!!
Today I got the package with the pressure regulator and it was just slightly different diameter and height so I had to purchase a bigger o-ring (I used HNBR rubber as they are resistant to fuel/oil) from A/C o-ring kit at advanced auto parts and also put a small washer on the outside to keep it snugly in place. And it fired right up. The only thing is that the check engine light is still on, will try to reset it again.
Anyway, my final thoughts are:
1. always get a fuel pressure gauge before thinking the injector is bad.
2. Aftermarket parts from Quantum fuel systems work just fine in our pumps.
Also, I have gotten a 320kpa fuel pressure regulator instead of the 300kpa oem. I heard it will make it run better, but we'll see.
Today I got the package with the pressure regulator and it was just slightly different diameter and height so I had to purchase a bigger o-ring (I used HNBR rubber as they are resistant to fuel/oil) from A/C o-ring kit at advanced auto parts and also put a small washer on the outside to keep it snugly in place. And it fired right up. The only thing is that the check engine light is still on, will try to reset it again.
Anyway, my final thoughts are:
1. always get a fuel pressure gauge before thinking the injector is bad.
2. Aftermarket parts from Quantum fuel systems work just fine in our pumps.
Also, I have gotten a 320kpa fuel pressure regulator instead of the 300kpa oem. I heard it will make it run better, but we'll see.
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Xciting 250 / Re: Injector not getting power.
« on: March 29, 2021, 04:53:00 PM »Crossbolt what I've found is this happens when scooters sit a long long time. My dealers mechanic is the one that explained in detail so I avoided any unnecessary work. The other reason electric pumps fail is running them out of fuel and continue to run the pump dry.I agree. Mine sat for a really long time with probably half a tank of gas and that's what killed the pressure regulator. Interesting fact, my Kymco is a 2009 but got first ever owner and license plate in late 2017 according to carfax.
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Xciting 250 / Re: Injector not getting power.
« on: March 28, 2021, 09:36:26 PM »That's exactly why you need the original fuel pump assembly, like I said that silver disk is the regulator and can fail. Just replacing the pump you will probably still have low pressure.Yeah, I figured that. Anyway, I took mine out and found it corroded and seals rock solid and cracked.
And then I found an aftermarket pressure regulator available, looks the same as the oem.
https://www.amazon.com/dp/B08P3V54ZF/ref=cm_sw_r_cp_apa_fabc_SS4VXS0C1VKFNDWZBK2N
So I think that should work just fine. Fingers crossed. Will update later on once installed.
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Xciting 250 / Re: Injector not getting power.
« on: March 28, 2021, 06:25:27 PM »I have a 2009 Kymco 250RI I bought not running. My fuel pump would pump gas but not enough pressure to start engine. I ordered a fuel pump assembly from Kymco on advice from dealer. My dealer explained that silver disc in the assembly is the pressure regulator and sometimes fails. I got the new pump installed hit the start button and fired right up. I have a Yamaha Majesty as well that I replaced the fuel pump assembly on as well.So I got a fuel pressure test kit and indeed the pump was only putting out like 5psi of pressure. Ordered an OEM but it is on back order till end of May. Figured I would try something else in the meantime and got a quantum hfp fuel pump replacement. Should be here on Wednesday. Let's see if that works.
Both of these scooters are low milage Xicting 2k Yamaha 1300. and both sat for several years.
However I believe the silver disk you are talking about is not part of the electric pump itself, but rather located at the top of the assembly and is not serviceable.
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Xciting 250 / Re: Vibration at high RPM/SPEED
« on: March 26, 2021, 08:03:58 PM »
Sorry for no updates. Bike doesn't start. Will update once fixed.
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Xciting 250 / Re: Injector not getting power.
« on: March 26, 2021, 07:05:20 PM »
Got a new injector thinking mine might have been faulty. Nothing yet. Seems to squirt fuel just not enough. I originally thought that my fuel pump was bad and not pumping enough pressure. So I ordered a new one. In the meantime I installed an aftermarket one but that too didn't help. Should get a hold of a fuel pressure test kit tomorrow and check the fuel pressure first.
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Xciting 250 / Re: Injector not getting power.
« on: March 22, 2021, 06:28:41 PM »
Spent half a day looking for messed up wires, but nothing.
Checked ecu for continuity as the manual says, all good.
Bike still shows code 33, even though injector resistance is correct.
Tried clearing the code with twisting throttle method, it wouldn't clear.
But I noticed that injector does spray now if cranking. Bike actually starts for like a few seconds and then dies.
Tried switching fuel pump relay, still doesn't work. I think I will try getting contact cleaner as suggested, but my contacts that I was able to check all look good with absolutely no signs of corrosion.
Checked ecu for continuity as the manual says, all good.
Bike still shows code 33, even though injector resistance is correct.
Tried clearing the code with twisting throttle method, it wouldn't clear.
But I noticed that injector does spray now if cranking. Bike actually starts for like a few seconds and then dies.
Tried switching fuel pump relay, still doesn't work. I think I will try getting contact cleaner as suggested, but my contacts that I was able to check all look good with absolutely no signs of corrosion.
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Xciting 250 / Re: Injector not getting power.
« on: March 22, 2021, 01:18:18 AM »
After further investigation I found that the injector resistance measured between ground or pump relay connection and the contact at ECM is correct at ~11.7. However once I turn the ignition on the resistance measured at 0.7(between frame and ecm connector), so quite lower than 11.7 it should be. I think that should mean something but not exactly sure what.
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Xciting 250 / Re: Injector not getting power.
« on: March 22, 2021, 12:36:35 AM »
So, today I saw a check engine code 33-injector resistance not within spec. Maybe I didn't see it before, I am not sure.
However I checked the resistance of the injector and it is within spec at 11.5ohm.
I tried switching the fuel pump relay with a headlight relay and nothing changed.
However I checked the resistance of the injector and it is within spec at 11.5ohm.
I tried switching the fuel pump relay with a headlight relay and nothing changed.
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