Here are some links to extensive DIY instructions on valve adjustment on older Acura V6. Similar to Odyssey. Gets a bit involved. After review, should be able to decide if it is a do it yourself job for you. If you can do brakes and can get the tools needed which are not unusual or costly for auto repair, you would likely be skillful enough to learn to adjust valves.Could anyone tell me what are the tools I will need to do the valve adjustment and sparkplug replacement myself and how much time I can expect to take for this