Kymco 200i Petrol Pump failing

[fneijts]

Hi All,

I have a Kymco 200i for a few years now. We went on holidays for a while and parked the scooter for that time. When we came back the petrol pump did not work anymore. I replaced it and worked fine, however the next morning it no longer worked anymore and found that the new petrol pump also had given up the ghost. I thought that perhaps I had done something wrong and thus ordered another new petrol pump and repalced it again. This time I was very careful making sure that ewverything was done properly. Everything worked fine. Checked the next morning and yes it still worked.
When two days lated I picked up the scooter to go somewhere it had stopped again with teh petrol pump gone again. I have no idea what to do next as I cannot see how this can happen. I have taken the pump out and tested on teh bench and definately the pump is gone. How can this be with the scooter turned off. It is only 12 volts and it does not make sense?

Has anyone seen this before???

[Stig / Major Tom]

Seems electrical.
I'd want to look at the 10amp fuse, the battery leads/posts, the ground cable to frame connection, etc.
Then I'd contact Hi Flo and ensure that you are using the correct pump with the correct resistance.

More info on you scooter...miles. year, LIKE200I??, or?
Stig
BTW. welcome to the forum!

[Ruffus]

@fneijts welcome here!
As Stig suggests pls give details of your scoot.

-are we talking about an in-fueltank pump?
-was the whole pump replaced or the motor only?
-bench testing requires a fully charged battery or workshop tester
-fuses are to be replaced
-cables to and fro pump checked for broken insulation?

[fneijts]

Hi Stig and Ruffus,

Thank you for your replies.
My scooter is a 2017 Like 200i.
Both times I bought a complete in-fueltank replacement unit including filters.
It was working on the bench and was also working when just installed.
I also recharged the battery on the bike and it was full
I have not checked fuses but checked power on the lines after the fuel pump failed and was working OK.
I have solderfed the wires to the fuel pump and housing on the bench and used exisdting plugs to reconnect.
What throws me is that it was working  once just installed, so assume all wiring and installation was OK. However the fuel pump was dead again first next day, the second time after 3 days.

Frank

[JJJoseph]

There's enough information on failed Kymco Like 200s here on this website to keep folks occupied for the next 10 years.  The Like 200i fuel system is the most common Kymco failure by a mile!  This common, repeatable failure might be likely due to ethanol-gas, but more research needed.  But it's certain that one should never store a m/c (or a boat) with ethanol-gas in the tank. That will create downstream problems. I run my Kymco on boat gas to avoid ethanol, but not all riders have access to boat gas or av-gas. Airplanes can use car-gas in certain operations, but absolutely never with ethanol for this reason. The internet is full of free information on ethanol and fuel pump damage.

[Ruffus]

Hmmmh, sounds mystical..?
-pls take the pump out again and check whether it works on top of your fuel tank, not inside mounted
-if yes, pull on cables during running, maybe a further cable is faulty
-always start with testing/renew fuses
-try this with all your pumps

[Stig / Major Tom]

Back up, please.
Do you hear the pump begin to run when you turn the key on?


(One thing you can do - as an alternative to reading the often wild and prejudicial responses from the internet/forums  - is to purchase a subscription to www.cyclepedia.com for your model scooter, and start a service ticket with one of their expert techs! They wrote the Kymco service manuals for KYMCOUSA)

A recommendation for dealing with gas which has sat in a tank for more than a month or two is to fill the remainder of the tank with fresh gas....and ride it!

Obviously ethanol gas is not killing fuel pumps in fneijts' LIKE in 72 hours.

What is the voltage briefly at the pump connectors when the key is turned on?
No voltage?...
look at 10 B (10A)
suspect fuel cut-off
suspect ECU.

Good voltage at the connector and don't hear pump start to prime? Bad pump.


Spoke with a Highflow tech on the phone. He said that their pumps, which match the appearance of the KYMCO OEM pump - are pretty much universal for all kinds of vehicles, incl. boats, motorcycles, etc. They provide sufficient fuel pressure to modern EFI systems. The electrical resistances are most often the same.

I know that I've been using a Highflow pump (sold for Yamaha motorcyles) for 10 yrs in my LIKE200i - and it works great.

The Highflow tech agrees that your issue sounds electrical - not fuel related.
You are buying which brand pump? Paying how much?

Good Highflow is @ $85


Stig

[Stig / Major Tom]

Checked with a couple techs - incl. the folks who wrote the KYMCO service manual.
Agreed on one possibility, "quickest way to kill a fuel pump is to run it dry"

Stig