Bought my boat used, has a J70TLCUR, previous owner did the conversion to premixing, but I don’t know the extent of what was done. I’ve been running the boat for 3 years now, the pump decided to start spewing fuel. Through searching I’ve found that a new replacement is $450 +/- the part I’ve seen is 5007423. But this is the original vro pump. Is there another pump I can use to replace it with Seeing as it isn’t mixing the oil? Or where might I find new seals for the current one? Also I’ve never thought much of it but I’m using 16:1 since previous owner said to. is that right for the motor?