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Old 06-22-2014, 01:03 PM   #1
9secondsflat OP
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Joined: Oct 2011
Location: RI
Oddometer: 251
Clip and washer position on needle??

Question, Aprilia Mojito 150
The needle has 3 groves in it, does anyone know from first hand experience the position of the plastic washer...does it go below the c clip or above it ?
I had a very rich idle , pulled the needle and saw the clip in the bottom slot, I raised it but like a dope was not paying attention to the plastic washer position..
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Old 06-22-2014, 03:26 PM   #2
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Joined: Aug 2005
Oddometer: 3,087
I would look on AF1 website. They may have parts diagram you need. Also consider other Aprilia models with same engine and check their parts diagram.
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Old 06-22-2014, 06:21 PM   #3
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The plastic washer sits in between the clip and the bottom of the slide. It sits between the two to act as a bushing, so the hard steel clip doesn't wear out the softer alloy on the inside of the slide bucket/tube when the needle moves up and down and around.

PS: some of the plastic washers have a little "tit'" that fits into a small hole/recess in the bottom of the slide. If the washer has this little "button" ensure that it sits flat before putting the needle in, otherwise the needle will get a lot of side-loading and wear out within a month.
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