air filter
hi on my 1985 43f it has two spunge/foam air filter elements the first one fits on to the plastic cage the second one covers the first and all the cage . i have just cleaned them and oiled them with putoline foam filter oil but i over oiled them which made the bike run rich causing a flat spot/ hicup at 4-5000 rpm . i have now soaked all the excces oil out and the flat spot has gone ,i was thinking of removing one of the elemets and just having a single filter .it dos seem a little over kill to have two for road use . even with the clean not so oily filter i think the bike runs a touch rich . when i first bought the bike it was in bits and had no filter so i got some filter foam and made a single layer one and the bike allways seemed a bit stronger pulling than with the 2 stage yamaha set up . are you guys running stock set ups ? zigzag
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