I have a question about the 4 wheel and diff lock on the RMAX2. Took the bike out on its first trip kinda playing with everything. When I switched the knob into 4wheel drive it went fine when i went to diff lock I got the blinking light and it reduced power. . I would then come to a complete stop put it in diff lock and had to bump the gas alittle for it to engage. Is this the way its suppose to work . I am guessing this isnt a shift of the fly wheel drive