Looks to be a great product, I installed it for a friend and he is very impressed, (tuff to impress a teenager)
I did ride the 450 fourtrax it went in, and was amazed at the improvement in power and torque.
Had to upgrade the clutch to hold the new power and now it works great.
Would suggest a clutch upgrade with this kit and some strong grip to hang on, cause it will really pull now.
Thanks for a great product that does what it is supposed to and then some.
Mike....
I’ve never worked on a four stroke motor. Only a few two strokes. Watch a quick video on YouTube how to deal with the timing chain, and went to work. Took me four hours from start to finish. Everything was there gaskets keepers piston, the works.