Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Please help with this YS 61S????

Reply

Old 08-29-2008, 07:24 AM
  #1  
OkieTrucker
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Pocola, OK
Posts: 188
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Please help with this YS 61S????

I bought this engine and have a couple questions from you guys that know alot more than me. In the pic you see 2 nipples just below the carb and behind the prop. Which one is for pressure and which one is for supply, or how can I determine? Any suggestions on how to initially set up this beast to start tuning it. I will be running either a 12x8 or a 12x10. Any other info you might have or know will help as I have never had a pumped engine or an engine with a tuned pipe. I am only about a year into this hobby so I am still learning. Thanks in advance.
Attached Thumbnails Click image for larger version

Name:	Wu60528.jpg
Views:	125
Size:	59.3 KB
ID:	1021541   Click image for larger version

Name:	Ql34129.jpg
Views:	69
Size:	48.2 KB
ID:	1021542  
OkieTrucker is offline  
Reply With Quote
Old 08-29-2008, 08:13 AM
  #2  
petec
My Feedback: (58)
 
petec's Avatar
 
Join Date: Jan 2002
Location: Beaver Falls, PA
Posts: 2,077
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Please help with this YS 61S????

I have a manual for your engine in PDF form if you want me to e-mail it to you.

First thing though, in your pictures I see two fuel filters but no check valve. You need a YS check valve for your engine to function properly. The YS fuel system is a pressurized system and not a pump per se. The check valve lets the pressure into the tank but won't let it escape back to the engine so the fuel will be fed to the engine under pressure. This is why you can put the tank just about anywhere and the engine doesn't care.

The front nipple is the fuel feed coming in from the clunk and the rear is the pressure line back to the tank vent tube and this is the one that should have the check valve in it. Make sure you have a YS check valve not any other type or you will run into issues.
petec is offline  
Reply With Quote
Old 08-29-2008, 08:17 AM
  #3  
bob27s
My Feedback: (19)
 
bob27s's Avatar
 
Join Date: Apr 2002
Location: Cleveland, OH
Posts: 5,576
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Please help with this YS 61S????

Rear = Return to tank - with check valve to pressurize tank

Front = Feed to engine - with filter

JPG attached (look like crud, converted from the manual PDF)

I can send you the PDF if needed.

YS60 and YS61 engine plumbing was the same.

The rest of the setup depends somewhat on the pipe you will be using.

My YS long stroke was set up with a Hatori 650 pipe. Set was 16.5" from the exhaust outlet to the first baffle.

You may want to stop over in the Classic Pattern forum for this engine too. Lots of us old YS users over there.
Attached Thumbnails Click image for larger version

Name:	Pn37809.jpg
Views:	79
Size:	198.8 KB
ID:	1021559  
bob27s is offline  
Reply With Quote
Old 08-29-2008, 09:41 AM
  #4  
Kmot
My Feedback: (24)
 
Kmot's Avatar
 
Join Date: Jun 2003
Location: Northridge, CA
Posts: 10,941
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Please help with this YS 61S????

You can upload PDF's direct to the posts in the Glow Engine forum if need be.
Kmot is offline  
Reply With Quote
Old 08-30-2008, 07:05 AM
  #5  
OkieTrucker
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Pocola, OK
Posts: 188
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Please help with this YS 61S????

Please email it to me, mu email is cliff.littlejohn@gmail.com this will be a great help. I have the check valve, i just didn't have on there in the pic, but I didnt know where it went, thanks Cliff
OkieTrucker is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service