A forum for owners of Yamaha TTR250 trail and enduro bikes!

apw99 · Veteran Member

Cleaning 'Twin-Air' Air filter

TTRfan · Super Guru

It sounds like the filter has been over oiled by the PO. Take it off and squeeze out the surplus oil and refit it.

There are some useful YouTube videos. This one might be worth a watch:

More info here

Brian

peteBLUEttr · Super Guru

Be sure to thoroughly wring out and dry your filter, and don't over oil it, else you will be spitting oil everywhere out of your exhaust

BM Steve · Guru

I have some green stuff in my filter, it's water soluble when you use the special powder that came with the oil

Wouldn't use it again though as it takes a lot of this powder to clean it, I'll run out of powder before oil

I'll go to solvent based oil then, something you can clean out with kerosine or turps

hanzo · Senior Member

I use the putoline aerosol oil .Find it very economical spray filter its blue so you can see it going on put filter in a plastic bag and massage the oil in .Take it out leave it in the air to evaporate the solvent out and your good to go if you have spare filter you can store them this way too then you can clean and change at the same time. wink

apw99 · Veteran Member

Thanks guys, sounds like the previous owner was simply over-zealous with the oil! I'll wring it out and see how it looks then.
Cheers!
APW

apw99 · Veteran Member

Just to close this topic off, I cleaned the filter in a bucket of very hot water with loads of washing-up liquid, dried it out and then re-sprayed with filter oil. This seems to have worked fine and 'Gypsy4' is running like a clock

APW

aussiedeuce · Veteran Member

it may also, like mine, have a setup with the crank case going into the airbox. This may account for the extra oil on the filter, I know that the filter and the inside of the air box were covered in oil.