ok i bought a 1999 polaris scrambler 1000 dollars needed front left shaft 300 dollars so figured i had a deal rebuild carb was running fine at first could do a wheelie like nothing ithad almost no gas in it filled it up with gas changed spark plug started it up smoked a lot for about 2min then warmed up its fine it leaked gas from the overflow valve and was loading up bad you had to run it wide open for it to even run good i rebuild carb lastnight when i took it off there was oil in the engine and the carb was full of the two cycle oil i cleaned it up rebuilt started it smoked a lot at first again it still does same thing you hav eto run it wide open for it to run fine it sounds like it loading up with to much gas or possibly oil but im not 100% sure any ideas of what i should start with ? i think it is pushing to much oil though cuz ive already used close o half tank on prob two tanks of gas

 

adjust the injector...

Polaris, Injector Pump Care, 2-cycles only
For owners of the 2 cycle oil-injected engines, there are a few tips you should know about. Listed is for the 400 engine, but most should apply to the 250 & 300 as well.
About once a year or so, the oil injector adjustment should be checked. This is pretty simple & explained in the owner's manual, but here is a refresher:
-Remove the injector pump cover (easy to find, just follow the oil line from the tank) and look carefully inside.
-There should be an index mark on the linkage arm the cable connects to, and another cast into the pump housing itself.
-Have a friend (or you can use a rubber band in a pinch) apply pressure to the throttle lever to the point where the throttle is just about to start opening, but doesn't. The marks should be in line. If not, adjust the cable so they are.
Now for the rest of the story. The cables sometimes get rusty, or the lube dries out of them. Since thumb pressure opens it up to pump more oil, but a small spring returns the lever to it's idle position, they almost always stick 'open' if they stick. Symptoms include 'burning oil' odor, excess smoke, and fouled spark plugs. If the cable just appears 'dry', remove the seat & left side panel. Find where the 2 cables connect into one. You can open this up with gentle persuasion. Apply lube to the cable that goes down to the injector, and make sure it works freely. If it is rusted, about all you can do is replace the cable.
Sometimes, moisture gets in the box. It is a good idea to spray WD-40 in there after doing your annual calibration check. This will disperse any moisture, and help seal it out better for next time. Not only does moisture cause rust, it can freeze things up in cold weather. If, after riding through snow, slush, or water the throttle seems 'stuck' in below-freezing temps, the first place to look is the injector pump box.

or block it off and premix.

check out www.gen3usa.com for scrambler info.