Question about 1993 Harley Davidson FXR Super Glide

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Do the arrows on the top of the pistons on a 1993 Harley face the exhaust ?

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No, the arrows face towards the front of the engine. This is because the combustion chamber has a flat "squish area" instead of the older hemispherical design of earlier years. On the earlier Shovelheads and Ironhead Sportsters, you had to look for the ridge on the piston pin boss on the underside or the eyebrow for the intake valve. Not so on the Evolution engines. ARROWS GO TOWARD THE FRONT OF THE ENGINE.

Good Luck

Posted on May 29, 2011


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