Hi Kirk!

Reliability is not an issue with this engine. Otherwise, I'd be flying electric

See me at Harvest this weekend and I'll answer any question you may have about taking the plunge. You won't be sorry.

The whole thing is in initially setting up the engine. After that, if something changes, do NOT touch the needle valve because that isn't the problem. if you're the type that feels the need to turn a needle before every flight, then don't get a DZ. These things are SOLID.

Keep the fuel filtered, replace the plug once in a while, and occasionally check the valve adjustment. That's it.

-Mike