D750 Fuel Pump

TxRzrBk

Member

Equipment
B7100DT
Dec 12, 2013
122
0
16
Texas
B7100 Fuel Pump

Looking for the mikuni rebuild kit for a B7100 lift pump (fuel pump). I've searched the usually sources and I see complete pumps which are cheap clones for around $30 but I would rather update the original pump with new diaphragms and gaskets for obvious reason. Anyone know the Mikuni model number or where to get a pump rebuild kit?
 
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TxRzrBk

Member

Equipment
B7100DT
Dec 12, 2013
122
0
16
Texas
Messicks offers a diaphragm and gasket.

$34 Says they have one in stock.

https://www.messicks.com/ku/84586

Dave
I see only the mention of fuel diaphragm part 15381-52040. From looking at the pump I would guess there are several gaskets needed and probably a couple of check valves. The gasket 15263-52140 is just the gasket to mount the pump to the block. I don't want to open the pump without line of sight to a full rebuild kit. https://messicks.com/ku/84585?sectionId=215420&diagramId=328423

I found this really poor image of the pump taken apart, it shows the two check valves I suspected
 

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TxRzrBk

Member

Equipment
B7100DT
Dec 12, 2013
122
0
16
Texas
I've trolled through several mikuni rebuild kits trying to hone in on the pump model number...none of them look correct and I can't seem to figure out the model or series of the lift pump