[RideRed350]

I canmot get the cam chain back on the cam sprockett. I have the tensioner released. I get the chain most of the way on then it has too much tension and i cant get it the rest of the way on.

[JimDirt]

You did not mention what year 450R

You can either remove the 2 cam sprocket bolts , then slip the chain over the sprocket , then put a bolt in , then snug it , then spin the engine then put the other bolt in , then torque them to spec

OR , you can unbolt the 4 cam tower bolts , then tip the tower to the left side so you put on the chain , then flip it back and re-tighten/torque

And if i did not say it already

Welcome to the site !!