I scored a piston in my 96polaris sportsman 400.when I removed cyl. and it looked as if this engine was not getting enough oil.this engine has never being ran low on oil.I wanted to check the pump and removed the cover and found the pump broke in half in the middle.I have been unable to find a new pump as Polaris say this pump is no longer available from Polaris parts.My question is the hole to the gear drive off the crank need to be plugged? or can I just replace the cover and seal it all off and premix my fuel.
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