Author Topic: Rough idling 2019 Like 150i  (Read 3741 times)

dmshar5

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Rough idling 2019 Like 150i
« on: June 27, 2025, 11:39:24 PM »
I’m at a loss, I recently bought a 2019 Like 150i with 440 miles on it that had been sitting for about 3 years.  I drained all the gas, replacing it with ethanol free gas and added 2 ozs of Sea Foam.  It started, but did not want to idle or accelerate smoothly.  Checked all hoses and wiring, etc, found nothing out of order.  Thought I drive a few miles to work the new gas and Sea Foam through the fuel system.  It would take quite a while running at 20-30 mph until it would run fairly smoothly and idle without stalling out.  With fuel injection, there is not a lot of adjustments to be made.  Before I’m forced to take it to the dealership, has anyone else had this problem and if so how did you resolve it?  TIA, Dennis
PS My first Kymco And I can’t believe all the tech stuff these have, far superior to the majority of 150 scooters.

big blue

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Re: Rough idling 2019 Like 150i
« Reply #1 on: June 28, 2025, 04:37:31 PM »
Hello yes they are really great scooters. I would guess there may be a clog in the fuel system at the fuel pump or the injector nozzle. Our resident Like experts will be along soon Stig and Ruffus. Welcome to the forum!
2012 Kymco Like 200i LX (Sold)  Salem, Oregon USA

Ruffus

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Re: Rough idling 2019 Like 150i
« Reply #2 on: June 28, 2025, 04:53:08 PM »
@dmshar5 welcome here!
Please try as said in att pics.
Ignore #3 in second pic.
Seems it cured itself already with fresh fuel and seafoam. Takes a fueltank or two to rinse it tru. Since it uses only three liters/100km might take a while and not only 20 to 30 mls.

To backflush the injector needs a bit of  underseat work to which we might come later.

No change  then come back for Qs...
« Last Edit: June 28, 2025, 07:36:24 PM by Ruffus »
Happy and safe scootering, Ruffus