smoking?........
Ronan, there are a couple things that could cause you to smoke. Are you using a lot of oil from your injection tank? Do your spark plugs foul out? How do they look? Are they showing signs of heavy oil use?
What type oil are you using. You must be using a non NMMA, non TCW-3 oil with low ash. I use the QuickSilver brand of full synthetic. I buy it by the gallon for price. I don't have the luxory of driving 2 hours when I need oil and Walmart stokes this oil.
The two things you need to be concerned with is one, the oil injection pump isn't set correctly and two, the possiblility of your rotary seals around the crank, that seal your rotary chamber.
On the oil VROI pump, you need to get a mirror and look at the injection pump and see that it's in proper alingment to your carb. One of the ways they suggest testing this is to start the motor, then hold the oil pump lever wide open. This will cause the ski to smoke bad, letting you know if works.
On the rotary seals, you can remove the carb and oil lines from your oil tank and design a block off for this chamber. Use a hand pump and a gage and pump it up to 5 psi. If the seals are good, it will hold that pressure for 5 minutes...................:cheers: