I have a Hobbico TorqueMaster 90 that I have been using for the last 3 years. I am noticing that I am starting to have trouble being able to turn my engines over with the starter. I initially thought it was the battery in my field box was going bad; but after replacing im still having the same problem. Ive been using the starter mostly on a Saito .91 and 100. I was recently doing work on an OS 46Ax and needed to turn it over a few good times, and I was surprised that I wasnt getting the force I had expected from the starter on such a small engine.

Question: Have I been overpowering the starter with the saitos? Is there anything I can do to recondition, improve the starters performance other than stepping up to higher voltage? Or is it just about that time to replace?

Any help would be appreciated.

Thank you!