Replacing/Cleaning the S10 "Tea Bag" fuel filter to restore mileage & power + Guglatech Filter.

jrusell

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Aug 23, 2017
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Dartmouth, Nova Scotia, Canada
I sent an email to BestRest about this as well, and here was the reply I got:


[T]he filter will collect water as advertised. When that happens two things will happen:

1. If your fuel has any ethanol additives, the water will bond to the ethanol and <slowly> pass thru the filter. That can take several days or weeks. During that time the engine will run normally and a bit of water isn't a problem. Almost all of the water will remain in the bag.

2. As for constantly removing the bag, that's not necessary. When refueling you can look down inside and see if there's accumulated water. You'd know this when your gas tank is nearly empty, but the bag shows some fluid sloshing around. That slosh is water buildup. Should this happen you can gently pull and twist the filter up and out of the tank, pour out the water and reinstall.

I've pulled my own filters half a dozen times to dump water, and as long as I do it carefully it's not an issue. Remember to use an install tool to spread the bag after it goes into the tank, otherwise the bag can remain folded and that will slow down fuel flow when you refuel the bike.
If I had some water buildup in the filter I would use a Mityvac or similar with a soft hose. Carefully suck it out rather than removing the filter and risk damaging it on the tank opening.
 

The Mountain

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Sep 28, 2017
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Cow Hampshire
If I had some water buildup in the filter I would use a Mityvac or similar with a soft hose. Carefully suck it out rather than removing the filter and risk damaging it on the tank opening.
I'm looking at this from the perspective of "travel in distant lands", not "3-day jaunt to Fundy with my buddies".

Mityvacs are hard to come by in third-world countries. To give you an example of the situation I'm focusing on: my wife is from India, so we watch a lot of news from there. Last week, there was a segment reporting that a gas station had been caught adulterating fuel, likely because the price of fuel was climbing fast and the operator wanted to boost profits. People were finding that 25% (or more) of the "fuel" they bought was actually water. If I had tried to fill up at that station, the Guglatech would have completely filled with water in less than a minute. Even when the station operators aren't actively trying to scam the customers, fuel bought from places way out in the sticks has a good chance of water contamination through simple neglect. It's very easy to accumulate several tablespoons of water with just a couple of tankfuls, not to mention dirt and other trash.
 

Chaz

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Dec 30, 2018
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L’Islet, Quebec, Canada
Well…I guess its my turn to change that filter! Bike is at 95500km, fresh plugs, fresh filter. The bike was struggling between 1000-2800rpm and during acceleration.
After checking everything , the in-tank filter was the last thing…
 

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Cycledude

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Jan 29, 2016
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Rib lake wi
So did it run any better after changing the fuel filter ?
to me the filter really doesn’t look dirty enough to cause running problems
 

Chaz

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Dec 30, 2018
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L’Islet, Quebec, Canada
So did it run any better after changing the fuel filter ?
to me the filter really doesn’t look dirty enough to cause running problems
I waiting for my new filters…
I don’t wan’t to clean the old one . The bike was running but I could feel hesitation at acceleration and between 1000@2800rpm.
 

Chaz

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L’Islet, Quebec, Canada
***For reference ***
here is the strainer / filter model number from Quantum Fuel Pump in the States :

I ordered The one from Hongwin and I sure the delivery will be loooooong and contact QFP for the part number and order it also . Hope it will be here FAST ! Seasonnis almost over!
 

StefanOnHisS10

Converting fuel into heat, noise and a bit motion
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***For reference ***
here is the strainer / filter model number from Quantum Fuel Pump in the States :

I ordered The one from Hongwin and I sure the delivery will be loooooong and contact QFP for the part number and order it also . Hope it will be here FAST ! Seasonnis almost over!
Same here, never used crap gas but stil at only 30k ish I had the same. The Hongwin filter is perfect and cheap. Took about 2,5 weeks for delivery.
 
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