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In 1990 Suzuki reverted to a longer stroke 749cc GSXR engine of the type used in the 1985 machines. Can I use one of these engines?

April 26, 2017engine gsxr longer reverted stroke Suzuki type Used

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In 1990 Suzuki reverted to a longer stroke 749cc GSXR engine of the type used in the 1985 machines. Can I use one of these engines?

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No. Besides the external differences in appearance of the oil filter fitting and raised engine number on the casing, the 1990 engines used shimmed tappets as opposed to the screw and lock nut type used on the ’85 model (the type of tappet adjustment alone would not be a reason for non eligibility).