I don't know if this has been discussed here, but Tinytach.com sells a sweet little tach/hour meter for use on bikes that don't come with a tach like my DRZ250. Cost just over 40 dollars, shipped to my door. Its not quick enough to use for shift points, but for determining what RPM the bike is at when traveling at highway speed, or in each gear, its perfect. One wire to ground, one wire wraps aroudn the spark plug wire. Thats it Great product.