x2, I just finished a top-end in one of our sleds, the instructions with the pistons said to run a full tank of 50:1 premix, and take it easy on it and up and down the throttle for the first five hours, then give her hell.skidoo600racer said:Your first tank should be premix for one. Next You should not hold it at WOT or at the same position for along time, you should feather the throttle. Just take her easy for awhile. Also you might want to check the spark plugs after the first ride to make sure the jetting is right. They should be light to cardboard brown.
ride the sled.cameron.demarlie said:Well I just bought a 1997 xc 440 and anyways the top end was just rebuilt and me and my friends got the engine in and hooked up today. Well now that its in and hooked up what are the first things i should do to get this thing broken in?
ok awesome then i might be able to go pick up some oil and get it ridden by tommorowEmpire087 said:Pretty much any mineral oil, you could probably just run like walmart 2 stroke oil in the blue jug. It will only take a few quarts to break in your motor.