Zontes ZT125-M 2022, Maintenance Manual

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9. Check the water pump cover assembly(M310)
Check the two points indicated by the arrows for leakage. The bolts are for cooling liquid bolts. If there is leakage, remove the
bolts and replace the O-ring. If there is leakage at the leaking pipe of the right crankcase cover, you can try to remove the
leaking pipe (because the sealant is applied before press-fitting, it is difficult to pull out), clean it up, reapply the sealant and
reinstall it; or directly replace the right crankshaft Box cover assembly.
A small amount of coolant leaking from the leaking pipe is normal. If the engine is running continuously, it is abnormal. The
water pump cover needs to be disassembled to check whether the seal has failed.
M310
M125
M350