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British Kart Industry Association There is an amendment to the regulations to allow a gauze or mesh to be attached to the external face of the air box trumpet. This must not alter the shape or size of the trumpet venturi. N modifications to the airbox or trumpet can be made for the purpose of attaching the gauze or mesh. the maximum thickness of the gauze or mesh permitted is 1mm. Engine lubricant must be a synthetic oil meeting the requirements of the JASO FC standard to ensure the the engine exhaust emissions meet the standards set down by the M.S.A. JASO FC is to be clearly marked on the lubricant container and is available from the majority of oil product manufacturers. With immediate effect only the following spark plugs are permitted to be used for the W60 engine: 1. Bosch W2AS 2. Bosch W08AS Measurements A few instance have been found where piston wear has affected inlet timing has a revised measurement procedure has therefore been developed. This will require a solid inlet port tool to be used in place of the feeler gauge method. Zip are releasing details of these revised requirements and also obtaining the tool for distribution. Removal of Engine Seals W60 engine seals can only be removed by approved personnel. If a customer takes an engine to a sealer without the seal intact, they are not permitted to reseal it. This engine must be returned to Zip Kart, who will inspect the engine and at their discretion only reseal if they are happy with all contributing circumstances.
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