[cbxer55]

A couple bucks? Where do you buy yours from? First one cost me $50 in 2010. Second one cost me $75 in 2014. Third one cost me closer to $100 in 2018.

I've changed up the way I fuel my bikes. Have three 5 gallon containers, all have filtered nozzles from Tractor Supply. I also made a funnel with dual medical quality mesh filters. I pour the gas from the five gallon containers into a half gallon container, then pour it in the bike. Fuel gets filtered five times when I'm done.

I've always filled my bikes at home, as often as possible. I just added the filters to the equation. Typically, I would have had to change the filter last year. Nope, didn't have to. Filters in the funnel caught everything, and I mean a lot of everything.

 

[cbxer55]

Look at cages. They all have the strainer attached to the pump inside the tank. And an inline filter between the tank and the engine. The only one we change is the external filter.

My new to me 2021 Honda CBR600RR, the strainer isn't even changeable. Have to buy a whole new pump to change it. And yes, Virginia, they get plugged up on them too. Been reading about it on that particular forum. Some ingenious people have come up with ways to alter the pump to have a changeable filter.

I'm really hoping that by filtering the fuel before it goes in the tank, to bypass this need to alter it any. As I said above, I'm already past the point where the M109R would need a new filter. And it's chugging along just finem, thank you very much.

The mesh filter that is in the nozzle of my funnel, catches a lot of fine particles. Stuff that given time, would definitely cause the filter to become obstructed. I'll try and let some accumulate, and take a pic. It's kind of hard, because I am in the habit of back-flushing that funnel every time I use it.

 

[cbxer55]

To expand on cbxer's comment, the 109 actually has two filters. If you look at the parts diagram there is a filter inside the pump that is listed as "Fuel Filter (for high pressure)" and then the one we change, that is listed a "Fuel Mesh Filter (for low pressure)". I've never heard of anyone changing or cleaning the filter inside the pump, or even if it can be. Kind of sounds like the same design as you mentioned on your Honda. There are instructions in the service manual on how to disassemble the fuel pump, but no mention of the internal filter in that process.

My B-King, the pump has to be disassembled to get access to the filter. I did it without a manual or a diagram, it was that simple. But who knows on any other bikes And the B-King responded to a plugged filter the same as the Nine. Backfired, stumbled on throttle application, and stalled when coming down to a stop. A new filter fixes it right up. It's even smaller than the filter the Nine has. And hangs totally below the bottom of the fuel tank, in a can on the bottom of the pump. It's the lowest point in the entire fuel system.

When I took it into Suzuki in 2021 to diagnose what was wrong with it, a different problem that occurred a few months after I changed the filter. I told the mechanic I had already changed the fuel filter. He said "really, how did you do that?" LOL!!

The B-King is a PITA to do anything that is under the tank. Takes nearly an hour to get everything off the bike so you can take the tank off. Even worse getting it put back together properly.

 

[cbxer55]

Mine has been fairly consistent with about every four years or around 10,000 miles. Even my B-King needed a filter change at just around 10,500. Having said that, I'm now at five years on the M109R, and I'm hoping my filtering the fuel going in will keep it going for a lot longer than this.

 

[cbxer55]

Mine has always let me know when it's bad. The only exception being the one time that the little sliver in the fuel cap got out-of-place. It was stumbling then as well. But, removing the fuel cap and putting it back on cleared it up, briefly. So that told me there was something wrong with the fuel tank vent, which is that little sliver of metal in the cap. Have no earthly idea how it got out-of-place, but it was.