We have only seen a few 850XS outboards for sale in Ontario. The gearcase with the low water pickups under the bullet is the feature that makes the motor special. Updating the ignition system and adding late model power trim would certainly make the motor better.
https://www.facebook.com/marketplace/it ... _type=postThis is one a only a few people that have run an 850XS in the last few years. Interesting combo. I think you could get more than mid 60’s with some setup improvement and prop selection.
https://www.screamandfly.com/showthread ... 850XS-Merc