everytime you to go in reverse, you have to hold in the red button, hold in the break and shift down. puting the spacer on the cable pulls the cable the just like holding down the red button and shifting down. with this over ride in place you can just shift down from N into R without holding down the red button and pull the break.
its simple to try on your atv, no il-effects can come from this. your engine has to be lower then 3000rpms in order for it to shift down from N. so theres no chance on shifting into R by acident.