Well, its July 4th, and its been pouring rain for days in Texas.....no flying. Cant get my OS91 started to test fly this used YAF-16A that I picked up.

I put an arrow to the air mixture valve to ask a question....from the closed position and the body adjustment sitting at 90deg, how many rounds out do I need to start at? Im assuming this is just like the high end needle? New to DF engines so any thing helps!

thanks and have a great 4th of July!

From the closed position try 2 rounds out that should get you started then adjust from there and if the engine been sitting for a while take the glow plug out and put a few drops in the hole this should get you started and get the fuel to the carb. hope this help.

Robert

Hi:

Two turns open is a good place to start.

To start my engines, especially after the plane has been unflown for a while, I disconnect the pressure tubbing from the fan, and with a siringe I put pressure in until I can see the fuel just getting to the carburator, then I unscrew the plug and do as Robert said. That way the engine starts at the first try every time. Doing it this way, the hex screw at the fan lasts a lot longer. Remember to put some grease in yor hex starter, otherwise the screw won´t last long (ask me how I know).

Regards

Eduardo

Man, you guys are great!

On the starter cone, the hex backs out when starting, its threaded opposite. So, am I going to have to pull the whole thing out and use a piston lock tool to tighten her down? or can I do my best from upfront and loctite it in? For my helis we use a locking tool to tighten the fans on, but its easy to get to...

am I gonna have to pull the whole thing out? LOL?!?!?!?

great 4th!

Loctite is the best way. You can hold the fan using a rag and tighten as best as you can. Leave until Loctite is set.

If you don't want to take the whole thing apart, you can fill the cilinder with oil (through the plug hole) to act as a crank lock. Then use a good hex wrench to tighten it down. Maybe use a good pair of Vise Grips on the hex wrench.