Air filter foam?

[awa355]

Is the foam used for an air filter of a specific type? My scooter has an oiled foam filter which is simply a flat section, no bumps or special shapes at all. $40 for a replacement filter. I was wondering if it needs to be a certain type of foam or if one could be cut from material sold from a retail outlet.

[Moi]

When the sir filter on the Honda needed to be replaced and would have to be sourced from the UK, alternatives were looked at - remade the paper element filter with a fine foam [oiled very lightly to assist with dust capture] which was bought from a local bike shop - cost about the same as a couple of coffees. I would guess as long as it is fine enough to capture dust particles when oiled then it should be ok.

My tuppence worth...

[Akzle]

had a stihl running a dry scotchbrite for a few years now,,,,

fucken thing wont die.

[haydes55]

When the sir filter on the Honda needed to be replaced and would have to be sourced from the UK, alternatives were looked at - remade the paper element filter with a fine foam [oiled very lightly to assist with dust capture] which was bought from a local bike shop - cost about the same as a couple of coffees. I would guess as long as it is fine enough to capture dust particles when oiled then it should be ok.



My tuppence worth...

As above, just make sure the foam can't be sucked into the engine. It's not like it's a high performance engine, DIY.

[vifferman]

You can buy Unifilter foam from many motorcycle shops, and cut it to fit. I've cut the paper filters out of four different bikes and replaced them with Unifilters, oiled with dirtbike filter stuff. Works really well, but the oil's supeer tacky and a pain, so I've abandoned the habit and now have a BMC filter in the VFR instead. Even though it's re-cleanable and re-usable, I'm tempted when it's grubby to throw it away and get a Pipercross (largest element area of any brand).