This is a Echo SRM261 that came into the shop because it was leaking oil Hard to believe it was still running well. This is an example of a machine that is over 7 years old and ran with high use this entire season. The new orange units sit in the shed because they are tooooo heavy. Now this picture shows one way to get that flywheel off. Some times a unit can be leaking and you can't tell without taking the flywheel off. This pictures shows the bolts that you use with the puller. This picture shows the engine in parts. I did find that the upper roller bearing was worn a lot so I will replace it. So I will need two seals, the roller bearing, and two rings, and two gaskets to put the unit back together. Less than $20 and I will probably get another two years. This picture shows the four bolts that you take out so that you can take the engine apart. Pretty straight forward.