Scooters - 125 to 300 > LIKE 200i

3 Tests for LIKE200i fuel delivery problems

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Stig / Major Tom:
To check the fuel injector with multimeter --- EASY > unplug connector down at the injector. Touch two prongs with meter to read ohms. should read 11.7 +/- .06


To check power to the fuel pump: unplug white connector on black cable leading from the tank top. Touch the multi meter leads to the harness side of the fuel pump connector, with the positive lead touching the red/black wire terminal and the negative lead touching the green wire terminal.
Turn the ignition switch on. The battery voltage should show for a few seconds. Yes/No??

If the battery voltage is not present check the following:
● Fuse B (10 A)
● Fuel cut-off relay
● ECU

If voltage IS present....
Check the fuel pump with multimeter:
Touch the multi meter leads to the fuel pump side of the fuel pump connector, with the positive lead touching the red/black wire terminal and the negative lead touching the green wire terminal.
Fuel pump resistance (at 20°C/68°F)
red/black and green wires
1.9 ± 0.3 Ω

So, 3 fairly easy tests to get us started on inspecting the fuel delivery.

Stig

kjems:
Thanks for this.

I get 3,1 ohm when I check resistanse in the plug to the fuel pump. (it's unplugged).

So that could indicate a fuel pump failure? (including problems with not taking gas - stumbling/or small fall outs - when starting and at low speeds?)

Jesper

kjems:

--- Quote from: kjems on September 30, 2022, 11:22:33 AM ---Thanks for this.

I get 3,1 ohm when I check resistanse in the plug to the fuel pump. (it's unplugged).

So that could indicate a fuel pump failure? (including problems with not taking gas - stumbling/or small fall outs - when starting and at low speeds?)

Jesper

--- End quote ---

Ended up changing the fuel pump, and all problems are now gone!  (with this: https://www.ebay.com/itm/394052084353)

Neil955i:
Good news!!

GreenMachine:
Hello, hoping I can revive this thread here on fuel delivery issues.

Just bought a 2012 Like 200i, which had sat for about 10yrs in an airconditioned garage.
She's in real nice shape, 1 (female) owner, +- 2k miles.

Right off the batt we realized that the fuel pump was bad, and the fuel tube above the pump was cracked and collapsed (maybe what killed the pump). I Cleared out old gas and replaced with new. Replaced the pump, now the pump runs for the couple seconds when the ignition is engaged, as it should. Also confirmed fuel pressure to the injector (pre-crank). Thought I was rtg after all that, but no.

Now experiencing a Crank but No Start. Not even a fart. Unless, I use starter fluid and in that event she starts and idles for about 5sec then stumbles off. For a crank or two after that, she'll start and idle for the same 5sec then stumble off. Its very consistent.

Getting a good spark. Confirmed the fuel injector is pulsing its spray of fuel when cranking, so that seems to be good.

I'm pretty much convinced its a fuel problem, that the fuel pump is initiated with the key is first turned on, but does not re-engage when the bike is running (only runs for that 5sec on starter fluid). But why am I getting the fuel spurt with the injector out and cranking. What the heck I'm confused now.

Anyone got any 2 cents on what may be the issue?

If it were a bad fuel pump relay, it (the pump) would not engage when the ignition is engaged on.

What else up stream from the fuel pump would inhibit it from engaging?

I witnessed a celp blink or 2 or 3, but its sporadic, sometimes its just solid then goes out, sometimes it blinks. Just ordered a obdII 3prong adapter on amazon, not sure if that's gona work but.. it was cheap.

Any feedback would be appreciated guys, thx in advance.

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