Primary Chain

Saturday 25 May 2013

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The primary chain requires renewal when stretched more than 1/4in. per foot, and usually this is indicated by any external adjustment has been accepted. As the fracture of the chain can cause irreparable damage to the drive side crankcase is a wise precaution to renew every 20,000 miles on account the great power of 1,000 cc engine. The component is endless and removed along with the sprockets (Fig. 6). Spare parts for triplex chain not supplied. The blade tensioner always shows slots, but the replacement is called for when these slots are worn halfway through the component. A cracked blade must be renewed immediately. The chain has links straight for use with a tensioner and only genuine replacement can be fitted.

The shock absorber nut has a right-hand thread and must be dead tight. Neccessry Leverage is significant if the kit wrench tool is used for removing or tightening, and it is permissible to block the primary unit with a metal retaining fork or softwood. A loose nut location affects the steering assembly and cause fracture spring, springs also break if the damper cylinder is very worn. It is advisable to renew the complete cluster of springs and reassemble the shock is greatly facilitated by partial removal of the slotted cam sleeve instead of trying to compress the spring cluster hand!