Mercury tracker 40hp help

[EricMorton]

I have a 1995 Tracker Super 16pro with a 40hp Mercury Tracker. The motor is 4 cylinder, 2 stroke, with dual carbs. Serial number 0G184736. I am looking for a water pump kit for it. I have tried multiple searches and cannot find anything.
The motor pumps fine when running above idle but when I come back to idle the stream spits and sputters.

 

[ThomW]

I am not sure if you want the whole water pump kit--if so, its part number 46-77177A3
or just the gaskets and impeller. Here's a link to merc's site. Just launch catalog, pop in your serial number and it will take you to the 40 4 cylinder motor. Impeller is found on gear housing--drive shaft. Hope it helps.

https://www.mercurymarine.com/en/us/parts-and-accessories/parts-catalog