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Old 05-29-2009, 08:37 AM
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Hi I have two inverted saitos and the nipple on the crankshaft is making a hell of a mess. Can you put a 6 inch tube on it to direct the waste out of the cowl or is there a rule of thumb people follow.
Old 05-29-2009, 08:41 AM
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Yes, that is what the nipple is for. Sixinches is about the max I would put on it though.
Old 05-29-2009, 09:01 AM
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One other question i have always had two strokes the muffler is starting to get stained on it, dont think i am running it too lean is that just the oil in the fuel doing it.
Old 05-29-2009, 09:20 AM
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Hello,

Iwould be building a 61.2" Cub 20 as my next project, looking ahead the specs says 20-26 4 stroke engine. Just thinking, would a .40 size Saito be way over powering it? I'm sure someone has already built one and this will be my first kit and Ihope not my last. Thanks to a great forum
Old 05-29-2009, 09:36 AM
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You do not have to run it full throttle
Old 05-29-2009, 09:42 AM
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Thanks w8ye
Old 05-29-2009, 10:27 AM
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Well, The Saito 30 would be enough engine for the task on this plane. But if you happen to have a 40 or want a 40 for future flexibility, then go for it.

The 40 weighs little more than the 30 but has more power.

The nice thing about most four strokes is that they run at lower throttle settings for long periods without loading up.

Enjoy
Old 05-29-2009, 10:40 AM
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Actually, Iam still shopping for an engine for my future cub, and having no experience at all on a J3 cub makes me wonder if a 30 can fly it with extra power if needed.

Ihave a GP corsair and the recommended 30 engine was I say for normal flying only. Iwould'nt mind having extra power and that made me think about pumping up the power house a litte bit.

Ihave no experience with a cub and looking at 61.2" wingspan make me think can a 30 even lift it off the ground (sorry for my inexperienced)
Old 05-29-2009, 10:41 AM
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Thanks againg w8ye, Iam going for a Saito 40
Old 05-29-2009, 12:31 PM
  #14835  
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ORIGINAL: Slats!

I have an 82 inverted with the same set up it has backfired twice but it wason start up and i think it was due to over fueling butit didnt throw the prop just loosened the nut.
That would be from your needles set too lean. If it were my engine, I would richen the low speed by about 1/16 turn and go fly it. I would listen to how the engine ran when level, nose up, and various throttle settings before considering it a good setting.
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Old 05-29-2009, 02:59 PM
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The 4-stroke backfire is caused by a lean fuel condition.   This could have been a temporary or one time thing due to a bubble in the fuel line or whatever, or it could be that the tank is now in a different position relative to the carb or something related  to it's new home.</p>

The safest thing to do might be to slightly richen the needles until it can be fully warmed up and re-tuned.</p>

Ernie Misner</p>
Old 05-29-2009, 03:34 PM
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So...after we "show" what we got, what then?   Will we get hero's badges from Horizon Hobby?  Fan club centerfolds?  I've a 300T, 1- 180, 3-150's 3 120's and a few pounds of parts? 
Old 05-29-2009, 05:53 PM
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ORIGINAL: Skyflyer

So...after we "show" what we got, what then? Will we get hero's badges from Horizon Hobby? Fan club centerfolds? I've a 300T, 1- 180, 3-150's 3 120's and a few pounds of parts?
I've never listed my Saitos. I just asked to join. I've got more than one and fewer than 100.
Old 05-29-2009, 06:16 PM
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You don't have to actually own a Saito engine. You just have to be a fan of them and seek the company of other members of the Saito brotherhood. Right? 8&gt

My first Saito was a GK .50, back in the late nineties. What a great first impression that engine made on me. I've been a fan ever since.


Ed Cregger
Old 05-29-2009, 07:42 PM
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ORIGINAL: Slats!

One other question i have always had two strokes the muffler is starting to get stained on it, dont think i am running it too lean is that just the oil in the fuel doing it.
Hey Slats , I hate that too . All the staining on a beautiful motor . I run 20/20 PowerMaster in all of mine . It is a synthetic oil they use in this . The stains you are getting are from the Castor oil . Castor does protect the motor more than synth. cause it takes a lot higher heat before it will burn off . So if you choose to run synthetics definately don't run it lean . I prefer synthetic over castor for the Saito . I have heard stories that castor causes build up in the bearing of Saitos but that is just hearsay I picked up at my club and don't know if there is any truth to it . Synthetics smell good too . It's a little more money for the 20/20 but I think the power I get out of it is justified . Always make sure you have a good smoke trail with a Saito and your good to go no matter which fuel you choose .

If you want to clean off the stain I heard boiling muff in antifreeze works . I used vinegar but that stunk .
Old 05-29-2009, 08:51 PM
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Quote:. I have heard stories that castor causes build up in the bearing of Saitos but that is just hearsay I picked up at my club and don't know if there is any truth to it

This, like 110% of all hearsay is untrue. My Saito1.50 is 18 years old and my Saito .80 and Enya .46MKII are nearly that old. All have run on a syn/castor blend for their entire lives except the 1.50 and Enya which were run on 20% castor for their firsttwo years and first year respectively.
Old 05-29-2009, 09:01 PM
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To me, a blackened muffler is the sign of an engine that has provided a lot of service. I kinda like the look when I see it. Nothing is more beautiful than my .56 and the layers of black. I like a clean engine just like anyone else, but castor residue is no problem.
Old 05-29-2009, 09:29 PM
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To all who responded with their experiences and possible solutions to my backfiring and prop pitching Saito...THANK YOU for taking the time and giving input.  I'll try these out and hopefully find the solution.  I've decided to go with a Great Planes nylon spinner with an aluminum backplate because of the ability to run a double (locking) nut on the crank with this spinnner...I had to order this because the LHS didn't have one in stock.   I appreciate the ideas!! 
Old 05-29-2009, 11:49 PM
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Hey Thumbsticks , Where you fly at ?I used to be up in Enumclaw before I moved back to Ca. . I had a couple friends that lived off of Burnett Rd.
Old 05-30-2009, 01:09 AM
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McChiken have you got yourself a tach yet !!!! You should dump that 20/20 and get a 15/18 or a 25/18 with some castor .
Guys, Keep your exhaust tight and sealed and maybe buy a nice looking turbo header !
Old 05-30-2009, 01:52 AM
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Castor is not recommended because Saito uses a one piece cylinder and head which makes cleaning carbon deposits very hard without damaging the metal.

Old fashion glycol antifreeze in an old crockpot overnight will make your engine sparkle again.
Old 05-30-2009, 02:51 AM
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ORIGINAL: Michaelh

McChiken have you got yourself a tach yet !!!! You should dump that 20/20 and get a 15/18 or a 25/18 with some castor .
Guys, Keep your exhaust tight and sealed and maybe buy a nice looking turbo header !
Hey Michaelh , I have 15/18PowerMaster but thats for my 2-strokes . Its like a Frigid female , doesn't give me what I need in a four banger . I have 2 Saito82's and a Saito115 . It's synthetics only for all them . I used to run 25/18 heli fuel in the 82for the first 2 gallons . I did some readings on my older 82 on my Mojo . With a APC 14x4w I was getting 9000 . A little weak . 13x6 APC 9800 . Now I have a 14x4 xoar yankin 10k . I only have 1 flight on the 115 with a 15x6 xoar and haven't taken a reading yet but I also haven't peaked it out yet . The guy I got it from only had 10 tanks through it . So it will be babied a little more . My brand new 82 , well , its still looking for a home .

My older 82 fell out of a plane from a couple hundred feet up so that might contribute to the lower R's. I had a motor mount fail . A friends dog found it a month later . It doesn't idle as low as it should either .

Thanks RC-Bearing , Forgot to mention that part . You must be single if your sticking parts in the crock pot . LOL
Old 05-30-2009, 03:58 AM
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Thanks RC-Bearing , Forgot to mention that part . You must be single if your sticking parts in the crock pot . LOL
Hehe, not hardly!

Just to be perfectly clear for the newbies,NEVER, EVER ,NEVER use the crockpot for food after using antifreeze in it! Get one from a yard sale or such for cleaning engine parts.

Old 05-30-2009, 06:35 AM
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Is there a list of all Saito Club Members?  Could you post it?
Old 05-30-2009, 08:28 AM
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This cylinder is from a 1991 HighCompression 1.50, as you can see the only black is around the exhaust valve. This eniges was run for two seasons on Fox 15%/20% castor. (before I knew better). I replaced the cylinder pictured because I broke it ham fisting the intake nut. I think a testament for WildCat fuel is in order, I re-used the original piston and ring and it still has the original bearings in it. I have an .80 the same age, maybe one year newer still all original. The fuel I use almost exclusively is WildCat 10 or 15% with 18% 80/20 syn/castor blend. Last season I used 6 gallons of PM of the same formula.
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