stunthanger.com
News:
CLICK HERE---->    <----CLICK HERE
 
 
*
Welcome, Guest. Please login or register. December 18, 2014, 07:25:12 AM


Login with username, password and session length



Pages: [1]   Go Down
  Print  
Author Topic: Starting my Saito 30  (Read 1326 times)
John Castle
Trade Count: (0)
Commander
****
Offline Offline

Age: 54
Location: McMinnville, Oregon
Posts: 174


The Bent Pin


« on: February 23, 2011, 01:13:05 PM »

I am installing a Saito 30 on a new Ringmaster and have made it through bench testing and break-in. I am using a wood 10-7 prop where it seems to settle in comfortably at about 8500rpm. The problem is it does not like to start at full throttle where it will be permanently set on the plane once installed. It starts easily at about 1/3 throttle. Break in fuel was 10% nitro and some castor added to 20% oil. What are your procedures for starting a full open throttle four stroke.

Thanks,
John
Logged

John Castle
McMinnville, Oregon 
AMA# 589650

Robert Zambelli
2014 Supporters
Trade Count: (0)
Admiral
*
Offline Offline

Posts: 940



« Reply #1 on: February 23, 2011, 08:00:32 PM »

John - first off, the SAITO 30 needs at least one full hour of run-in before it will perform.
I run all of mine full throttle and have never had any problems starting.
When on its side, it really needs muffler pressure. Choke it twice (hold your finger over the muffler and flip the prop) and it should start in one or two flips.
You can also rotate the prop to compression and then whack it backwards.
Experiment a bit and you'll find a way that works best for you.
It's really a great little engine and makes lots of smooth quiet power.
One thing you MUST keep in mind. If, while on muffler pressure it starts and runs backwards, you must stop it immediately.
What it's doing is drawing fuel in through the muffler and exhausting through the carburetor.
Just put your finger over the muffler outlet and it will quit.

Keep us posted on your results.
Bob Z.
Logged
Gerald Schamp
AMA Member
Trade Count: (0)
Lieutenant
*
Offline Offline

Age: 71
Posts: 111


« Reply #2 on: February 23, 2011, 08:20:06 PM »

Hi Bob,

I wanted to thank you again for doing the work on my OS .26 four stroke carb/venturi. I have two of them and they run very well, thanks to you. I have been running SIG champion fuel in mine, I'm hearing that I shouldn't be running any Castor in my fuel, causes build up on valves. Your advise here please.

thanks much,
Gerald Schamp
Logged
Robert Zambelli
2014 Supporters
Trade Count: (0)
Admiral
*
Offline Offline

Posts: 940



« Reply #3 on: February 24, 2011, 06:18:35 AM »

Hi, Gerald. Thanks for the good words!

I ran all my 4 strokes on 10-22, 50/50 castor/synthetic for nearly ten years and never had a problem.
This was everything from the OS 20 up to the SAITO 90.

At the suggestion of Bob Reeves (THE 4S specialist), I recently tried 20-20, to which I added just enough castor to bring it up to 22% total lube (for bearing protection). It's now my fuel of choice. Although I was pleased with the original 10-22, the newer mixture seems to bring out the best in the engines. A bit easier starting and much easier to set the mixture. So far, I have only tried the 20-22 on the smaller engines but soon, I plan to do a bit of testing on my SAITO 56.

To this day, my all-time favorite stunt combination is the SAITO 30 in the ARGUS.

Also, Bob suggested clunk tanks - talk about an improvement! I now plan to use them exclusively, in all my planes. Watch for an article in the next CL World.

Bob Z.
Logged

Tags:
Pages: [1]   Go Up
  Print  
 
Jump to:  


Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines

Valid XHTML 1.0! Valid CSS! Dilber MC Theme by HarzeM