I had a electric one i retuned it without grinding a single tooth on it -grinding wheel was wobbling -irony is they say in manual that you dont use machine if thats the case and that it should be returned to fix it . They actually made a flange that holds the wheel out of injected molded plastic -good luck getting it run true,it should have been made on a lathe while attached to a motors rotor to get true concentricty but that would be too expensive for cheap chinese brand . The hinges that have plastic with motor and grinding disc were made poorly it had play in it . Claw that limits chain travel had 2-3 mm play in it. Over all it was cheaply made with poor tolerances machine that will never do precise cut. I also returned the chainsaaw that i bough with it because chain sprocket was out of true so chain would jump out of bar.Horrible products.
There are very small gaps, but for now it is holding up well. I have the first version of the chainsaw and I am very satisfied, but as you say in the second version and I noticed that the chain is close to the pulley and throws it several times.
