3 years later... But hey, I was looking for confirmation for a rev limiter too, as I'm working on a used CS3510-AC I picked up. When tuning it according Echo's EU service data specs for carb adjustment, the high jet should be tuned to 12500 to 13200 RPM. However, my 3510 goes berserk as from 13000 RPM. So I assume it does have a rev limited coil set at 13000 RPM.
I'm not aware of the differences between US and EU versions of the 3510, and I'm tuning a 3510-AC (automatic choke). Echo's EU service data specs for carb adjustment for 3510-ES version, indicates higher RPM's, from 13000 to 13600 RPM. But that could be arbitrary, as my saw doesn't reach max listed RPM's either before the limited coil kicks in at 13000.
I'll be using this 3510-AC for some weeks, to see if it may have some flaws to be addressed, before I tear it apart to port and mod. It mainly needs more torque (probably gasket delete and lowering intake) and better throttle response (exhaust mod, perhaps timing advance). I've looked around but found no porting references, so it'll be an improv job.
