Hi Max,
You might have given me an idea. I have had a number of Sprinters that kick back violently and maybe a heavier flywheel might fix it. Only thing that makes me doubt it might fix them is the fact that on all these motors to see if I could fix them I fitted a blade carrier off the 18 inch Victas to see if that could solve the problem but it didn't. I also tried drill starting one with a big old 2 speed Sher drill ( you know the one that breaks wrists if you get wrong) and it stripped the low speed gears in it. I was hanging on really hard. I throw those motor out now
