Hello!

Just bought an MVVS 58 from a friend and decided to try it yesterday.
The engine is about 3 years old but it had never been started and it´s equipped with an aftermarket canister and a 24x10 propeller.
After running it at 1/2 - 3/4 throttle for about 15 minutes I took it up to full throttle and I only got 4900 rpm.
I understand that the engine needs running in a bit more, but I was really disappointed that it seems to have about the same power as my old crrc 45cc engine.

Should the engine really be this powerless or do you guys have any suggestion what to do with it?

Best regards,
Johan