rthorne

My Feedback: (29)

I posted a thread in the glow engines section but realized this is probably a better place for it. Heres a copy of a portion of that thread. At this point the engine is running pretty well. Here it is....



I took the plane to the field yesterday and messed with the engine for a while (even had a help from an experienced ys guy).

We didn't have much luck.

This morning I took the engine off the plane and put it on the stand.

Its running very well now but the needle settings have me confused. But this may be normal for a YS.

High Speed Needle: 1 turn open

Low Speed Needle: 6 turns open. (this seems awful lean)

Regulator is flush, or maybe a hair passed flush.

When I ran the engine on the stand I kept leaning the low end until the muffler quit spitting fuel. I still have lots of smoke coming out and when I put my hand in front of the muffler at half throttle, my hand is covered in oil.

Transition from idle to full power is smooth.

Do these settings sound normal? By the way I'm running a 13x4 prop for testing.

Dave Shadel

If it runs OK at those settings, fine. The idle needle is really just an airbleed anyway, sometimes we will even drill out the hole to make them run leaner in idle. You didn't mention plug or fuel, but it matters little if the thing is running to suit you.

rthorne

My Feedback: (29)

Hi Dave:

Just the guy who I wanted to hear from.

I'm running powermaster YS 20/20 fuel and an OS F plug.

Dave Shadel

Great!

Good Flying,
Dave

jsidsaff

Hi is there anyone out there that can help supply me with the valve settings for a YS63,help would be much appreciated

petec

My Feedback: (58)

0.04 to 0.1mm is the valve clearance.

club20racer

Hi all
I have a ys63 fz with the regulator underneath.
I replaced the diaphragm, but can't remember which way around the housing goes....does it matter which way it goes.
Thanks

tih

My Feedback: (1)

YS=63 FZ regulator orientation