Author Topic: Clean injector = all engine running problems gone  (Read 611 times)

kjems

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Clean injector = all engine running problems gone
« on: March 16, 2023, 08:25:34 AM »
Hello.

Just wanted to share my latest repair on my Like 200i. I have had a lot of problems with unstable idle running engine and not as much power on top as i used to have. Also it was harder and harder to start the scoot.

Solution was to clean my injector and took me no more than 30 minuttes.

Proces:

1. Losen the bolt holding the injector (size 10 bolt).
2. Losen the fastener on the fuel hose and carefully remove fuel hose from injector, while holding the injector with your other hand.
3. remove the clip on the plug delivering power to the injector on the side and remove the plug.

Now your can remove the injector and take it to a table for cleaning.

Follow this youtube guide.



I simplyfied the proces of attaching the carb-cleaning can to the gas hose by using a gluegun. Also put a towel over the can when you push it as i experienced leeks can easily happen. And since you will get sparks from the battery like in the video, it can cause fire in combination with skys of carb cleaner in the room. Another safety feature is longer wires, so sparks from battery and carb-spray-clouds is as far away from each other as possible. Would also recomend safety glasses.

Also i found that my injector had visible dirt on the tip, so i startet the proces carefully cleaning the tip with a cotton swab and carb cleaner.


It seems like a difficult process, but was actually ok easy.


Result - scoot is now starting instantly, running with no problem in idle  - and i litterally liftet the frontwheel when i gave full throttle after a traffic-light on the first test-drive! (have gotten used to less power i guess :) )

Jesper
« Last Edit: March 16, 2023, 02:04:36 PM by kjems »

CROSSBOLT

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Re: Clean injector = all engine running problems gone
« Reply #1 on: March 16, 2023, 10:42:25 AM »
Good show! Another thing to consider for next time is to reverse the flow through the injector. This will back flush any glop out the big end quicker than dissolving and pushing though little holes.

You still have to pressurize the right way to see if pattern is correct.

Good write up!
Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

kjems

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Re: Clean injector = all engine running problems gone
« Reply #2 on: March 16, 2023, 10:58:05 AM »
Good show! Another thing to consider for next time is to reverse the flow through the injector. This will back flush any glop out the big end quicker than dissolving and pushing though little holes.

You still have to pressurize the right way to see if pattern is correct.

Good write up!


Yes, did that also, and he also shows that in the video 👍

Iahawk

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Re: Clean injector = all engine running problems gone
« Reply #3 on: March 16, 2023, 02:02:18 PM »
very nice work! How many KMs do you have on your scoot?
2010 People S200 - sold after 8 wonderful years!
2014 Ninja 300
1996 Honda Helix
1984 Honda Nighthawk 650

kjems

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Re: Clean injector = all engine running problems gone
« Reply #4 on: March 16, 2023, 02:02:56 PM »
very nice work! How many KMs do you have on your scoot?

15.500 km

Ruffus

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Re: Clean injector = all engine running problems gone
« Reply #5 on: March 16, 2023, 08:17:53 PM »
@kjems, happy to see your scoot is back again.

Would suggest method CROSSBOLT mentions, 'cause it's a lot safer and to be done without additional equipment.
Danger of blocking this fine jets for good is reduced by reversed flushing.
Happy and safe scootering, Ruffus

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