Overheat and oil pump testing- 1985 yamaha 70 eltk

[jimcathy1]

2 things -

1. I am restoring a 1985 yamaha 70eltk, started with just a flick of theswitch - amazing. Has only 6 original hours, been in storage. replaced impeller and all gaskets, telltale stream is strong, but overheat buzzer still comes on. Bad temp sensor?

2. As owner manual says, after long period of storage, disconnect top oil tube and see if oil "runs" out (while testing run on 50:1 tank mixture). This a way to see if the precision blend system is working. Oil barely dripped out, can't be correct.

Please advise

[99yam40]

See if you can find a Yamaha service manual for that old of a motor and see how many CCs per ? minuets the specs call for when running at a certain RPM.
You would be suprized how little it needs at low RPM