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My air filter is made if cushion foam

  • Thread starter Thread starter donimo
  • Start date Start date
D

donimo

Guest
I was just tinkering with my bike I just bought and decided to look at the air filter. It looks like it was cut out of some old yellow foam like seat cushions are made of?

I have a bit of a goofy model (1983 GS400E) so I don't know how easy it will be to find a replacement. But is this really bad or have others done this and its coolio?
 
It's a pretty standard bodge when you're running a bike on a tight budget - you can get them to run fine. If it is running fine then you've got no problems. I've done it quite a few times, needs must and all that, and it works :oops:

Having said that some of those bikes did have foam filters - not sure about your model but it could be standard fitment anyway.
 
Those filters work REALLY well &, if cleaned CORRECTLY & cared for, last a long time. Clean it in a pan of Simple Green or Dawn dish soap & water, & rinse. Let it air dry. After it's dry, drizzle, NOT soak! it with motor oil or air filter oil & put it inside a zip lock bag. Squeeze the filter to work the oil into it. After you have it worked in evenly, take it out of the bag & re-install. Ray.
 
That's nothing, my bike had several rectangular SOS sponges in place of the air filter.:-k

I did a quick check of Bikebandit even though I figured you probably already had. They have a GS450ED here: http://www.bikebandit.com/suzuki-motorcycle-gs450ed-1983/o/m6028

Check out the fiche and see if it looks like yours. It may be that they changed something on the 450 engine to make it a 400 but retained the air cleaner.
 
Ja, dat ees eet.

The 400 is a totally different motor (8 valve tscc, like the 750/1100's) but I am starting to think the rest of the bike is the same. I still need to figure out if the carb's are the same, should be, but how can you tell?

I cleaned it with solvent (electric motor solvent, all I had, hmmmm) and then drizzled some mobil 1 synthetic 10w30 on there, yknow, to make it go faster. I mushed it around and put it back in.

I have a foam filter on my scooter, but I was wondering if it was a special gas/oil resistant kind as opposed to cutting up a camping foamy...
 
Mine had a Scotch Brite pad as the air filter when I bought it. I' d buy a real one.
 
Another good source of foam for filters is the grey sheets that come in computer motherboard boxes. Just the right density. In the 750 there is a snorkel that the filter covers. I cut the sheet to fit the snorkel cylinder, oil (K&N filter oil), wrap it around and wire or zip lock in place.

One layer works fine but if you're running a touch rich add a second layer.

Give it a try. You can usually get lots of it free from the local computer store as they just throw it out.

cheers all,
Spyug
 
I have tons of packing foam at work, so the foam itself isn't special? No need for oil resistan, or specific cell size or anything?
 
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