I am a home user of an Lazer HP 48 with a Kaw 19. After about two years of use I had approximately 150 hours. My orignal dealer went out of business, so I used Exmarks site to find another "new" dealer for service. I wanted to get a striping kit and mulching kit, so I went ahead and had them replace the oil and hydro and put in new filters when they installed the kits. Since that PM I have had a limted but disturbing problem with one of the wheel motors. I now get a clattering and loss of power from my left side motor if I am going up hill (seems to be specific to the angle). I say loss of power because I can't keep the unit going straight when this happens. This doesn't happen all the time, but when it happens, it is almost always in the same places in my yard. I have checked the levels everything is OK. Did my new dealer screw something up or something else at play here?