A little history first : Last year I grabbed a Deere 3E backpack blower off the curb hoping to fix it and resell, Anyway once I got it home and took a good look at it I determined it was not worth fixing. ( broken main housing, pull start missing pieces, ect.) Thinking of conversions, came the hammer so I could "disassemble" the blower and keep the engine for a future project. Recently I got a deal on a Stingray 120 for cheap. So now my conversion will have a home.
From the info I can find, I have a Kioritz 30.8 cc engine, it weighs in a 3 lb 14oz as it sits without the muffler. It looks like I can drop quite a bit of weight off of it so, and depending on what kind of power it makes, I think I'm off to a good start. It has a 2 ring piston, WA162 walbro carb, my caliper says it's a 11.08mm bore. I think It may be a reverse rotation engine (can't remember how it was oriented when I pulled it apart ), but with a spacer I can flip the flywheel and run it as a standard rotation engine. I'll post some pictures this evening.

Anyone seen of done one of thse before?

Here's a few pics.

It will make you a good conversion engine. Echo engines are my favorites due to their quality, power, and light weight. (Kioritz makes Echo engines.)

AV8TOR

I really hate to put a damper on ya but check your stroke.If you have around a 24mm stroke with that bore your going to end up with 22cc.I had 2 echo engines from blowers that looked identical to those.I sold them to j.romine who sells conversion engines here on rcu.Long time ago.
Anyway,for the ccs they are heavy but doable on cubs,ect...And you are right,they are CW rotation as pictured.I spent some time converting it,also making a rail mount out of aluminum angle iron that bolted to the holes on side of engine.I spent an hour with a rope starter and electric starter trying to get it to start.To no avail,because like you i forgot with way it was turning befor i converted it.
Then it dawnd on me to try the other directiion and it started first try.
Anyway,check your stroke to make sure of the ccs before you do a lot of work on an engine for a plane it wont work on.
I hope its a 30cc for ya.I could be wrong on the ccs though.But mine looked identical.

I pulled the displacement from the service manual here http://books.google.com/books?id=VFV...c3PxnhuY_dPubI

I will check the bore and stroke the be sure.

Well i just learned one thing.I didnt know you could lookup parts manuals from google.
Anyway,it will still be a good engine.should fly a little better than a ryobi when comparing the weight values.

Yeah, but it is only a "preview", and as luck would have it, the time I used it the two pages I needed weren't part of the preview. [>:]

Oh well, what do you want for free right?

AV8TOR

At least you where able to "Preview" it.Im still on a dial up and didnt even make it past the cover in ;like 15 minutes so i gave up.

Glad it worked for free, At least it had the info I needed.

Been doing some reading, I may go with a gas/glow with a glow plug. I have some 20/20 around and a few gals of methanol to cut it with. That would solve my reverse rotation issues. The weight and cost savings of not needing an ignition system will be nice too.

This is going to be a slow project, I have a full size engine I need to finish up and clear out of my shop before I have the room to start this project. I'll keep everyone posted on how it's going.