I need assistance on my 60 hp evinrude outboard motor it has two pypes from the water pump to the motor one pype is strait the other is bent in a s shape

Rob, AQABVA71K899 does not seem to come up as a valid # for referencing engine. Check the attached links,instruction and guides, Good luck
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Outboard Engine Serial Number Year Match up
Evinrude Outboard Motor Model Numbers
EVINRUDE OUTBOARD MOTOR MODEL YEAR LOOKUP GUIDE 1913 1979 MASTERTECH MARINE

Douglas, Outboard appears to be 1988, 70 HP. Check the attached links,instruction and guides, Good luck
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Find 1988 Evinrude E70TLCCA 70hp Outboard Motor Parts by Engine Section
Evinrude Johnson outboard parts Drawings How to videos
1988 Evinrude E70TLCCA 70hp Outboard Motor Google Search

It may look easy in the book but there are a few things that can go out. Such as the key/roll pin that drives the impeller can slip out on assembly. Water tube out of hole or damaged OR pieces of old impeller in it depending on why you needed to replace it. There are more but if you are not a trained tech it may be time to find one.

when the alarm goes off is the engine getting hot, try running it in gear under load while tied up and with the engine cover off see how hot it gets and if the water i circulating all the time , might have cooling problem !

Take the cowling off. Also drop the foot. There wil be a stainless linkage rod that runs the length of the motor that you will have undo to drop the foot. The water impeller will be inside a stainless casing that you will have to disassemble.

have you changed the impeller inside the lower unit.

There is copper pipe to redirect water up into the engine.

When you replaced the impeller make the copper pipe is insert onto the engine.

always follow your coolant pypes it will be located on janctions on water pypes

I am not sure but most of vw car temp sensors sit on the water pypes at the left side of gearbox(gearbox side) so just follow ure water pypes u will find it there.hope it helps