il will be variable when oil injection system is used and on Suzuki DT65 it is 125:1 at idle and up to full rpm it is 50:1. If You disable the oil injection system and mix yourself (50:1) it will get to much oil at lower rpm and smoke/smell more for example. At higher rpm it will be OK.<br /><br />If You buy the outboard I suggest you have a look at brownspoint.com if/when You need spare parts (it is probably one of the most complete Suzuki online stores on the internet).<br />There You can also find parts lists.<br /><br />If the service status of this outboard is unknown I would at least change to new gearcase oil (and new gasket on lower oil drain plug) and get a new impeller (water pump) also since it is made of rubber and will wear out in a couple of years usually. New sparkplugs of correct type and gap is also a good thing to use.<br />Thermostat may or may not be in good shape but it can be taken out and tested so it open at specified temp. But make sure it is mounted back in same position it was before.<br />If You do not want to do basic maintenance yourself just let a Suzuki marine mechanic do a basic service and hopefully it will work fine first season.<br /><br />It is also important You achive around 5500 rpm at full throttle if you want good performance (and actually want to keep this outboard in good shape in the future). Hope the outboard has a prop that will give that rpm at full throttle with the boat.<br /><br />/Bo
