300 to 325 shipped max. I would assume shipping to be around 75. Just depends on what all you include. here is my guess:
Head
Pistons
Cylinder
Cases
Crank
Coupler
Coupler Cover
Bedplate
Flywheel
Flywheel Cover
Stator
Bendix
Starter
Exhaust Manifold
Reed Cages
Intake Manifold
Carb
Flame Arrestor
All hardware
Depends on what year too. I would pay more for a 91+ silver engine than an older 80's black engine. As well I would pay more for a fresh water engine than a salt water engine.
It just all depends on the buyer. If someoen needs an engine RIGHT NOW, they will pay more. Of course you may also have the 440/550 guys needing a 650 engine for a swap project as well.
I sold a rebuilt 80's 650 engine a few years back for 350 plus 50 shipping on eBay. I got what I wanted out it even after the shipping being 75 and then of course the eBay and paypal fees. That was around this time of the year which is in your favor. It is jet ski parts selling time.
I have a super clean low hours silver 94 650 engine that I would sell for the right price but realistically it is worth more to me to have as a spare incase my 650 X2 craps out an engine. I have crapped a few engines before in my lifetime. I would rather be able to throw in an engine and loose a weekend instead of loosing a few weeks trying to scavanage parts together, wait/pay for machien shop work, to get back out on the water in the heat of summer.
Lately, I shy away from buying used engines. I have had some problems in the past that were very costly. I could have endured the same cost yet had a completely fressh rebuild instead.
I don't knwo if that helps or not, not everyone thinks the same.
DBR