Will a $42 eBay top end fix a 2 stroke 2002 Bombardier DS90? 

You’re very welcome. Ha ha. When you fix one thing something else breaks

Hello. Believe it or not it wasn't as much as I would have expected. I think it was in the high 80s or low 90s. I was hoping for 120 or 130 but I guess the proof is that it runs great and has probably 30 to 40 hours on it now with no issues

Hello! I just pulled the tank and the plugged the port. I didn’t do anything with the pump and so far so good!

I think it would be really tight. Might need some frame modifications

Hello. Thankfully that oil is easy to change. I did some research and ended up using 85w90 gear oil. Some recommended 85w140 but I felt that was too heavy for this small unit. I cannot remember how much I used, but it is less than a quart. Keep checking the level with the dip stick so you do not over fill it and blow any seals.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jycOh73v9kk.html

Did you notice a big difference in power? The engine was originally 83cc and now you have 97cc. Stock piston should mic out to 50mm the 90cc kit mics at 52mm and the big bore 100cc is 54mm. I am about to do this to an Eton Viper 90R it has the same engine. I lost power a few weeks back and ordered a NCY 100cc kit off eBay which is the same kit I think you bought.

@@GrowYourOwnFun Hello. I noticed a substantial difference in power. I think two fold because the old engine was worn out and then an increased bore on the new new engine. It probably has 25-30 hours on it now and still going strong. Best $42 I could spend

@@kevinon4wheels Thank you! I hope to install the new kit this weekend if all goes to plan. Will post a video of it when completed.

Hello. I now mix oil and gas to 40:1. I deleted the oil tank because I have trust issues with them working. I burned out a 1981 Yamaha DT175 because the oil injection failed.