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Mikuni Oil Pump

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I want to go through the Mikuni oil pump on a 1971 TM400R, any suggestions on where to find the O-rings and seals for the pump?

 

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that's gonna be tough, I couldn't find them for modern pumps on sleds.  Weird esters and stuff in modern synthetics would swell the seals and make the pump arms sticky. I'd try to soak them in standard injector oil and spin them with a drill motor to verify output. Add a spring to the return arm if still sticky. If you have a good assortment case of viton or ? rings available you might match them up.? it's a pretty precision little machine.

 

Edited by highmarker

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Would an oil pump from a TM250 work - a couple of NOS on ebay for sale - look very similar

 

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Thanks guy’s, I ended up doing a little research and found all but one O-ring available on Partzilla through Kawasaki the pump looks identical to mine. I placed the order and hope it’s all correct when it arrives.

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