It's recommended that
you use a Vortech lock nut with the Vortech adapter nut on 4-stroke
engines, because of the higher vibration
produced by larger engines. There is no
recommendation for 2-stroke engines at this time.
Vortech
Lock Nut Selection Chart
Crank Shaft Dia
Thread
Our Product #
Price
Purchase
7mm
1.0
DAV7710
$2.95
8mm
1.0
DAV7810
$2.95
8mm
1.25
DAV7812
$2.95
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07/28/10
