Not same motors at all. 2500 is a zenoah clone.Do you know if the G2500 and the G2511 have the same motor, looking to upgrade to the NGK CMR7H plug that some folks are running.
If you go back one page, you will see Hockfire saws has been posting in this thread.I have the JohnCutter and the V-Modest versions, both bought this summer from Hockfire Saws in Ohio, they can be found on Facebook and he ships to you with NGK plugs, he tunes them, and he can toss in extra chains for a fair price. I will say that I like the JohnCutter better, the V-Modest runs just as well, but I have an issue with the debris shield from the top, under the handle rattles off in seconds. It just does not fit correctly. The JohnCutter is tight and right.