Split the case?

Does anybody know if I will need to split the case to change out my water pump impeller seal? My bike is a 98 RM 250 and from what i read its in the right side crank case, but im hopeing it could be replaced without splitting the case. Thanks guys

Typically the connection points for the cases are directly beneath the piston. Look for another layer of cases inside of of your clutch cover but outside of the cylinder area. My '00 RM would not need cases split for the water pump impeller.

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