Break in?
It is possible the smoke is coming from break-in. During break-in of a newly rebuilt motor, the mix is about 24 or 26:1. This will cause a little smoke. If your using premix and not the tank, then you should be using a 50:1 ratio after the break-in period. If your using the injection system and tank, keep an eye on how fast you use this oil. If your oil level has a good drop, then it's possible your rotary chamber seals either didn't seat or weren't replaced. If this is so, then the oil from the chamber will bleed into your combustion cylinder and burn off in the engine, creating heavy smoke. On average, that oil tank should only need to be refilled once a season if your a weekly boater. Daily, you'll use more. Your oil requirements are ......non NMMA type oil. Do not use TCW-3 two cycle oil. Use Seadoo mineral or synthetic oil or it's equivalent. If your not able to get the Seadoo blend, you can use the Quicksilver blend that states it's usuable in the Seadoo rotax engines, which you can find in your local WalMart Superstore. If you don't know what type of oil you are using and have no way of finding out by the previous owner, I recommend you remove the oil and put new oil in, since you can't mix mineral and synthetic. .........:cheers: