Posted June 30, 200915 yr Has anyone got ideas why the coolant is mixing with the gear oil i just put in my tzr as i cant source the problem thanks lloydy tzr 125
June 30, 200915 yr sounds like a gasket problem. have you done anything else to the engine other than new oil?
July 3, 200915 yr Moderator Has anyone got ideas why the coolant is mixing with the gear oil i just put in my tzr as i cant source the problem thanks lloydy tzr 125 Water pump shaft seal...........as in it doesent anymore. When that fails it allows water along the shaft into the gearbox. There isn't another way for water to get into the gearbox as far as i know.
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