KymcoForum.com
General => General Discussion => Topic started by: Dibber on July 29, 2011, 11:55:23 AM
-
I'm hoping to buy a new Kymco scooter and the new GTi300 is looking really nice to me. But how reliable has fuel injection been for Kymco? Is there a pattern of specific problems? I also have a dealer that has a new People 250 left and may consider that if FI is problematic for Kymco.
Your advice is always appreciated.
Dibber
-
Kymco had problems with the old 500i engine in cold climates. But with electronic/sensors, not with the engine itself or with fuel pump oder injectors.
-
Although I've only got 1000+ miles on my Yager 200GT the fuel-injection has been perfect. Lights up immediately every time and fuel delivery is spot-on.
This is my first experience with fuel injection on a 2 wheeled vehicle.
Wil B.
Broadview, IL
'71 Guzzi Ambassador
'91 Nighthawk
'04 Kymco Super 9
'10 Kymco Yager 200 GT
-
Like Will I also have a Yager GT, and have had no problems with the injectors. My own problem currently is with the throttle -- or something else. The engine and power shudders and jumps forwards as I power the engine from 0 to 7 MPHs. After this initial jump she purrs like a kitten. It's been really frustrating when I'm stuck in traffic. When I'm done teaching my M-F Summer school classes next week I'm sending her off to the dealer.
-Wolf
-
Scooterwolf, is that a throttle problem or a clutch problem?
-
Scooterwolf, is that a throttle problem or a clutch problem?
The twitchy off idle throttle response sounds like the typical complaint for restricted fuel injected engines.
It is not a throttle or clutch problem but a computer chip mapping problem. I know that on motorcycles you can get after market EFI modules, such as Power Commander products.
It looks like TK makes EFI modules for Kymco, but I don't know much on that.
-
wolf i have had the same problem .....with what i have understood as "surging idle" on one of my efi scooters (non kymco) and seems to be associated with ecu deployment......the scooter will idle at 1500 rpms (on spec) and than jump up to 2500-2700 rpms....than suddenly ....come back down to 1500 again...this happens mostly on start up but i have experienced when stopping for a light ...
the problem is infrequent and intermittent/// but opens up a pandora's box of possibilities....i have 8-9 sensors on the scooter .....you need to have your mechanic take some voltage .ohm readings especially if the problem is recurrent and you begin to loose power,,,,,,one place to look is the pts (position throttle sensor)....but hey could be others as well (i,e, air intake .temp etc....re....clutch.....if you are up yo it remove tran cover(put scooter on center stand) and visually inspect action .movement on variator and bell.clutch....
-
Like Will I also have a Yager GT, and have had no problems with the injectors. My own problem currently is with the throttle -- or something else. The engine and power shudders and jumps forwards as I power the engine from 0 to 7 MPHs. After this initial jump she purrs like a kitten. It's been really frustrating when I'm stuck in traffic. When I'm done teaching my M-F Summer school classes next week I'm sending her off to the dealer.
-Wolf
Wolf, keep us informed.
-
Thanks everyone,
I've took the scooter into the dealer this past Sunday. My seat latch broke -- can't close/lock it. which will cause the seat light to remain on and
the battery to drain. Anyway, I'm having my mechanic look at the throttle problem again. He wasn't as concerned with that as he was with the latch -- he's never seen a broken latch before.
Anyway the ordered latch won't be in until Monday (I hope). I'll have a better idea of what's wrong after that. My scooter is still under warranty, so I hope it will cover the seat and the engine trouble.
Thanks for all the advice everyone,
-Wolf
-
Hello people,
I joined this board to hopefully give everyone a suggestion about this idle problem that seems to pop up. Without boring you with the details, I traced the problem back to the throttle position sensor (TPS). It seems dirt and grime can carbonize inside this sensor and affect the idle. Most people keep seeing their bike "speed up", when in reality what is happening is the ECU is trying to keep the motor from stalling. If the ECU doesn't receive a valid signal(or an incorrect one) from the TPS, then it simply stalls.
An almost no-cost fix is to clean the hell out of the TPS with electrical contact cleaner while working the sensor through its full range of movement. You only have to remove the seat & storage box for access. It sits on side of the throttle body.
Good luck.
-
I'm sure it is an easy fix it you know what these things are and look like and can find them. If posible, pic please.
Richard L.
-
I just bought a 2010 People S250. It has a carb and runs great, but Kymco has sold the People S250i in Europe with fuel injection and also a People S 300i with fuel injection for some time. They should have it down pretty good.
-
Hey guys, I may be totally off base here but i also have an '09 aprilia sr50(which is up for sale BTW),which is e.f.i. I had the "surging"? Whatever it's doing... :D
Anyway, on the sr's, they have an actuall "air compresser" on the set up, i assume to shoot air into the system to fire the e.f.i. When water starts building up, it'll do the same thing.. A "water trap" fixes that problem.... ;)
-
I'm hoping to buy a new Kymco scooter and the new GTi300 is looking really nice to me. But how reliable has fuel injection been for Kymco? Is there a pattern of specific problems? I also have a dealer that has a new People 250 left and may consider that if FI is problematic for Kymco.
Your advice is always appreciated.
Dibber
so far every scoot I have had I end up takeing the fuel injection off or by passing the gas line straight to the carb so they dont do me any good. they just get in the way and keeps you playing guessing games with your scoot.
-
so far every scoot I have had I end up takeing the fuel injection off or by passing the gas line straight to the carb so they dont do me any good. they just get in the way and keeps you playing guessing games with your scoot.
I think you're confusing fuel injection with something else like a fuel filter, because a bike with fuel injection would have no carb...
-
I think you're confusing fuel injection with something else like a fuel filter, because a bike with fuel injection would have no carb...
Im thinking fuel pump I have taken those off and runn the gas line straight to the carb I have a gy6 I did that to and I also did that to my honda rucks .
-
its fuel pump vrs electronic fuel injection......in any case .....injectors can clog over time ...if serious you will know about it right away.....some have suggested putting very small amount of fuel injector cleaner in the tank....others say not to do....anyone try this with your scooter?
-
I've put carb/injector cleaner in my scooter before with no problems. It can sometimes help I've noticed. Been a few years and still haven't needed a carb clean and my scooter sits 8 months of the year (only ride it when it's cold and my KYMCO Venox gets tucked inside nice and warm and dry).
Just remember, when you buy one of those bottles of carb/injector cleaner and the instructions say to empty the entire bottle, that they're designed (and the instructions are written) with a car's gas tank in mind. So if your scooter's gas tank is 1/10th of the size of the average sedan's gas tank, only put in 1/10th of the bottle.
She may run a little funny, and depending on which product you use may smell a little funny (SeaFoam), and the exhaust may even come out a funny colour (SeaFoam), but as long as you aren't going over the top with it using a little cleaner really shouldn't hurt.
-
yes adri i have used it////seafoam the best ....my mechanic emphasizes to use only a small amount as well....i just am reluctant to rx it as a general fix......i have found it especially useful in cold weather and for a hard start....but when it gets warm out i don't use it at all....
-
I thought we were talking about fuel injectors. A fuel injected scooter does not have a carb. Its one of the reasons I got the Yager GT 200i, no carb.
-
well yes i thought he was talking about a efi.....if not the point is moot...
-
Over 10K miles on my 09 X500Ri. I would never own another scooter or motorcycle without fuel injection again. I know there were some issues with the earlier ones, but mine is super. Easy start, no choke, smooth idle, quick response.
-
Blue, you disappoint me. You are usually right on. Gotta get straight between carb, efi, & pump.
-
I just bought a 2010 People S250. It has a carb and runs great, but Kymco has sold the People S250i in Europe with fuel injection and also a People S 300i with fuel injection for some time. They should have it down pretty good.
Old Geezer,
I'm considering a used (or new because it's never been sold) 2009 People S250i. How has your scooter treated you? Any problems that it's a carb and not FI? How has your mpg and mph been?
Thanks!
-
The only problem I have had with my S 250 is the battery died. It was replaced under warranty. I get around 60 MPG and it will top out around 85. It will cruise at 65 to 70 all day. It always starts and idles with no problems. It has good under seat storage. Dual front disc brakes and single rear disc. I really like this scooter. I have no complaints.
If I were to get another scooter it would probably a Kymco GT 300i.
-
I have a Xc250Ri and have had no issues with the efi. In fact, I love it in the cooler weather. I only have a 1000 miles on it, but have never had a problem with idling or acceleration. Having had bikes with carbs in the past, I would never go back after experiencing the efi.
-
FI is the cats meow, I don't miss carbs 1 bit. FI on my cars has been issue free for over 20 years.
-
I put K-100 in my tank every time I fill it (it is all my dealer/mechanic will use in Kymco engines,Kawasaki engines,Honda engines and yamaha engines that they sell) .
Have had No issues in three years .
-
This is my opinion but a lot agree and some disagree. Most MAJOR brands of gas put cleaners in their gas and any additional cleaners are not needed. There's a reason they cost 10c more per gallon.