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Author Topic: Cleaning Fuel Injectors on 2008 EFI bike  (Read 2548 times)

spyrius

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Cleaning Fuel Injectors on 2008 EFI bike
« on: May 10, 2011, 08:29:37 PM »

Hi, I have 2008 EFI 250R and it does not accelerate good when pulling from stationery or low speeds.
I heard that putting fuel injectors cleaners can improve running.

I have changed oil and put new spark plugs when I bought it. It has got 18,600 miles on clock and no previous history in maintenance from previous owners.

I had a 1990 CBR250 until now, so I am pretty confident when cleaning carbs, but since I have EFI hyosung now, I have no clues what to clean in injectors.

Is it an easy job to do? Do I need special tools to pull out injectors from throttle bodies? Do I need to secure fuel hoses in T section with clamps? Do I hook it up to a 12V source and fit syringe of carb cleaner in?

Would be a REDEX from petrol pump OK to put in a fresh full tank of petrol ( I live in a UK, Surrey)? Is there a difference between Diesel engines injector cleaner and Petrol cleaner ?

Cheers

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krakum1967

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #1 on: May 10, 2011, 09:45:14 PM »

If you can get a can of Seafoam, use 1/2 a can in a full tank of gas.  Next tank, 1/4 can, the next tank, half of what is left, and fresh petrol from there on.  Every 4 weeks run 2 tablespoons of it through a tank of gas to keep it clean.  Great stuff.
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Akarui

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #2 on: May 10, 2011, 09:53:50 PM »

I've never used seafoam on a bike but in cars you get a lot of smoke from that first run through if there is a lot of build up.
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krakum1967

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #3 on: May 10, 2011, 10:01:07 PM »

Live and breathe with it lately especially with the way the sneak ethanol in.  When you store the bike for the wintr, put in half a can too, does a really good job of stabilizing.  Yea, and it stinks to high heaven too.
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2007 United Motors V2C-650T AE

1981 Suzuki GS750EX - Rat Bastard

spyrius

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #4 on: May 10, 2011, 10:21:22 PM »

Thanks for replies very much.

Will try seafoam if get hold of it, but I live in a UK, so only stuff I have seen is a REDEX cleaner (for cars)
would a car injector cleaner does its job or I need to put seafoam only?

Anyone from UK who tried REDEX or something similar ?
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Akarui

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #5 on: May 10, 2011, 10:23:11 PM »

Seafoam is typically in the watercraft section at my local parts store you may want to look there first. Then again I am in the US so I could be wrong.
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krakum1967

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #6 on: May 10, 2011, 10:24:57 PM »

If REDEX is a EFI cleaner, yea, but follow the directions on the bottle.  Seafoam is not only a system cleaner it s fuel treatment so it can be burned in more generous quantities.
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2007 United Motors V2C-650T AE

1981 Suzuki GS750EX - Rat Bastard

Akarui

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #7 on: May 10, 2011, 10:32:34 PM »

sorry but this may be useful to you as well http://www.seafoamsales.com/
It may have a local shop listed where you can buy it.
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spyrius

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #8 on: May 12, 2011, 01:22:37 PM »

So I bought a STP injector cleaner and squeezed half bottle in it.
Will post results how did it went after I drive-off a full tank.
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spyrius

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Re: Cleaning Fuel Injectors on 2008 EFI bike
« Reply #9 on: May 31, 2011, 12:39:12 AM »

so, after 5 complete fill-ups and a roadtrip to france, it seems that i have got better response from low-end and idle is more smooth.

But, other problem has evolved, and I was with my mate on bike , doing 75mph and after an hour or so, I have got stalling and bike either shut down or were suddenly dropping from 75 to 60 mph and back. Initially, I thought there's something wrong with clutch slipping, but does not seems so. Never done similar thing when sitting solo.

Did any of you have experienced similar problems? Is it too much for tiny 250cc engine to pull 2 people continuosly on motorway at 75mph :D ?
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