Apprentice
Join Date: Oct 2002
Location: San Marcos,Ca
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Replacements
I am not sure but unless you change out the pump you may be able to get a spring and piston from the dealer or someone like Hawk Suzuki. Many times you can just remove the spring and piston and clean them up, clean out the bore and reassemble and your good to go. The by-pass valve sometimes gets stuck when the motor is apart and the pump is cleaned with solvent and the by-pass valve is not cleaned at this time. You may get lucky, also the bore that the by-pass is in will wear to the point that the piston is very loose and will no longer control the oil pressure, in that case the pump must be replaced.