Welcome to Club SAITO !
01-05-2019, 04:25 AM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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Yes sir, I sure do and it has worked about 35 times, on my own engines and several friends. The Saito method is so vague after the first 10 minutes that I came up the 10 minutes at 1,000 intervals to have something consistent and easy to keep track of. If you try my method note that during the 5,000 or the 6,000 rpm run the engine will accelerate about 300 to 500 rpm all on it's own without a change in the throttle. Saito say 40 to 50 minutes and the engine is broken in and I agree.
PS, Saitos have nothing in their construction that can benefit from heat cycling.
PS, Saitos have nothing in their construction that can benefit from heat cycling.
01-05-2019, 05:57 AM
Yes sir, I sure do and it has worked about 35 times, on my own engines and several friends. The Saito method is so vague after the first 10 minutes that I came up the 10 minutes at 1,000 intervals to have something consistent and easy to keep track of. If you try my method note that during the 5,000 or the 6,000 rpm run the engine will accelerate about 300 to 500 rpm all on it's own without a change in the throttle. Saito say 40 to 50 minutes and the engine is broken in and I agree.
PS, Saitos have nothing in their construction that can benefit from heat cycling.
PS, Saitos have nothing in their construction that can benefit from heat cycling.
Thanks, good to know. I've used your Saito break in proceedure for years on all my 4 stroke rebuilds. Never had a problem either.
01-05-2019, 06:54 AM
Not complaining, I also ordered a pile of metal cans to store the stuff. In spite of that, I just ordered 5 gallons of nitro to add to that stash.No gassers here, ever
I have used several gallons just recently of Fox Missile Mist. Over thirty years old, still in the original cans. Still burnedas new,Glow fuel stores very well .
I do burn a lot of glow fuel but this stash should last a while.
AFAIK, all .82 Saito use the same cam profile. They certainly run the same. I have three of the hot cam,dual plug 120 . Nice engines, but I would trade for the original, mild cam "Fathead" Saito 120.
The larger tappets also affect valve timing.
Last edited by Jesse Open; 01-05-2019 at 08:19 AM. Reason: Punctuation
01-05-2019, 07:25 AM
So I set valve clearance on my 100 with the provided Saito feeler gauge which I assume is .002. There is slight resistance in the gap. Now I want to go back and set it at .0015.
Haven’t noticed or looked to see if I have quieting ramps on my cam.
01-05-2019, 07:42 AM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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The Saito provided gauge is actually .0039", I only recently started using the OS gauge, Since using Saitos since 1988 or 1990 I never had an issue using the Saito gauge.
https://www.towerhobbies.com/cgi-bin...?&I=LXCN31&P=7
My OS tool set only had the .04 mm gauge in it.
https://www.towerhobbies.com/cgi-bin...?&I=LXCN31&P=7
My OS tool set only had the .04 mm gauge in it.
Last edited by Hobbsy; 01-05-2019 at 07:47 AM. Reason: Add content.
01-05-2019, 08:33 AM
The triplets, FA 120S dual plug. Wonderful engines .
Been using .0015 " (.04mm) to .002" since 1979 . Not a big deal either way . I try to stay on the tight side and avoid the wider side of the factory spec. The Saitos tend to open with time so I set on the minimum side of tolerance. WIth old flat tappet full size engines it is often different as the exhaust seats often recede causing the lash to close up. With those cases we often use the minimum settings for the intake and set the exhaust a bit open where we notice the gaps may tend to close up. Engines are all a bit different but as you learn the patterns you adjust accordingly.
Last edited by Jesse Open; 01-05-2019 at 11:46 AM. Reason: Spacing
01-05-2019, 12:28 PM
FA 125 Carburetor
I think it was Jim who wanted to experiment with bigger carburetors. Got one here for you. This is from a low time 125 that over-revved and lost a rod.
The owner will let it go for $20 if you want it. Just let me know.
The owner will let it go for $20 if you want it. Just let me know.
01-05-2019, 07:28 PM
01-05-2019, 09:45 PM
My Feedback: (1)
well I checked my 82, and both Rockers are adjusted very much the same, so I thought I would start a list of what could be wrong with it,
please add to the list if you wish, I will update it
A) different Cam
B) worn Cam
C) short or broken Push Rod
D) bent Push Rod
E) wrong Rocker Arm
F) worn or bent Rocker Arm
G) highly warn Rocker Pin
H) short Tappet
I) Bent Cam Gear Shaft
J) short Valve
K) wrong Cam Cover
L) bent Cam Cover
M) worn Rocker Pin Hole
N) worn Rocker Pin
O) some sort of Miss Alignment
Jim
please add to the list if you wish, I will update it
A) different Cam
B) worn Cam
C) short or broken Push Rod
D) bent Push Rod
E) wrong Rocker Arm
F) worn or bent Rocker Arm
G) highly warn Rocker Pin
H) short Tappet
I) Bent Cam Gear Shaft
J) short Valve
K) wrong Cam Cover
L) bent Cam Cover
M) worn Rocker Pin Hole
N) worn Rocker Pin
O) some sort of Miss Alignment
Jim
Last edited by the Wasp; 01-06-2019 at 11:59 AM.
01-05-2019, 10:29 PM
P) your using heli fuel or have heli parts in the shed
Q) the engine backfired badly and you have damaged the prop
R) the fa82 case is massively distorted which leads me to the next one
S
you are mildly retarded and mostly blind,you may be using an fa125 by mistake
Q) the engine backfired badly and you have damaged the prop
R) the fa82 case is massively distorted which leads me to the next one
S
you are mildly retarded and mostly blind,you may be using an fa125 by mistake
01-06-2019, 04:22 AM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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01-06-2019, 04:29 AM
Edit: It doesn't seem to me that the retainers would be a high wear item. I don't remember any visible wear on the other saitos I've rebuilt and I'm sure I did not buy replacements. There are many places that sell the retainers in 6 packs. What's up with that? Am I missing something important?
Edit to my Edit: Duh.....multi cylinders.
lonnie
Last edited by Glowgeek; 01-06-2019 at 05:52 AM.
01-06-2019, 06:36 AM
01-06-2019, 11:57 AM
My Feedback: (1)
01-06-2019, 12:02 PM
My Feedback: (1)
and where I come from it's not water it's wader,, so some people up here live in Waderville LOL
I remember my mother teaching me that when I was in grade school
Jim
I remember my mother teaching me that when I was in grade school
Jim
Last edited by the Wasp; 01-06-2019 at 12:04 PM.
01-06-2019, 12:17 PM
My Feedback: (1)
very interesting Dave, I did not know about that
Jim