at what rpm should a 70 horse johnson idle at? and how do we adjust the idle on this engine?
it seems to have an high idle, we`ve had problem with it going into reverse, i ajusted it and out of the water it makes noise but will go into reverse now , we just thought it might be idled up too muchIt should idle at about 6 to 8 hundred in the water and about 12 out with the muffs on. If the idle has just started giving you problems then I would look for the cause before idleing it up some more. I do know those engines had a heating problem and if its a new to you engine then I would do a compression check and if that is good then I would start with the fuel system and see why its idleng low.