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Old 11-15-2022, 06:50 PM
  #53251  
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thanks big time guys! I forgot to add that Capt said he did put new bearings in this engine, so it's somewhere around 40% new LOL.

I don't want to say it. but I won't be running it till next spring. I have come to hate the cold. it's really hard on my hands.

Jim
Old 11-15-2022, 08:23 PM
  #53252  
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Originally Posted by the Wasp View Post
thanks big time guys! I forgot to add that Capt said he did put new bearings in this engine, so it's somewhere around 40% new LOL.

I don't want to say it. but I won't be running it till next spring. I have come to hate the cold. it's really hard on my hands.

Jim
Only stands to reason you live in Vermont!
Old 11-16-2022, 10:23 AM
  #53253  
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Maybe you'll get a warm spell Jim.

Gloves at 50°f isn't terrible. Below that forget it.
Old 11-16-2022, 03:36 PM
  #53254  
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Default Used Saito 125

Im considering buying a used Saito 125 for a future project.

I'm new to four strokes.
Anything I need to ask or be aware of for this particular model or four strokes in general?
Old 11-16-2022, 03:46 PM
  #53255  
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Originally Posted by AllThumbs View Post
Im considering buying a used Saito 125 for a future project.

I'm new to four strokes.
Anything I need to ask or be aware of for this particular model or four strokes in general?
The FA125 is a strong engine for it's weight. Runs great, like all Saitos.

Some useful general info on Saitos: The Complete Saito Notes by Bill Robison - RCU Forums
Old 11-16-2022, 04:15 PM
  #53256  
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Originally Posted by Glowgeek View Post
The FA125 is a strong engine for it's weight. Runs great, like all Saitos.

Some useful general info on Saitos: The Complete Saito Notes by Bill Robison - RCU Forums
GlowGeek...nice to know.
I have a restored OS 70 Surpass but I've been interested in trying Saito.

And thanks for the link....lots to read there.
Old 11-16-2022, 06:18 PM
  #53257  
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Originally Posted by AllThumbs View Post
Im considering buying a used Saito 125 for a future project.

I'm new to four strokes.
Anything I need to ask or be aware of for this particular model or four strokes in general?
the only thing I can say, is, be aware that you will be wondering "how can an engine that quiet be so powerful?"

Jim
Old 11-16-2022, 06:28 PM
  #53258  
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LOL the only other thing I can say is that Pete hates the Saito 125, cause he knows it's a superb engine so he finds it a threat to his beloved Saito 115 LOL LOL

Jim
Old 11-17-2022, 05:05 AM
  #53259  
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I was nosing around this AM at engine prices. The Saito FG 11 is $399.00 at Horizon and 469 BP or $555.11 at MacGregors. Gorsh.
Old 11-17-2022, 05:17 AM
  #53260  
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Old stock at Horizon and m=new stock t at MacGregors?
Old 11-17-2022, 06:01 AM
  #53261  
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Originally Posted by 1200SportsterRider View Post
I was nosing around this AM at engine prices. The Saito FG 11 is $399.00 at Horizon and 469 BP or $555.11 at MacGregors. Gorsh.
It's selling for 399.00 BP / $469.00 at MMM right now. Still, pretty high.

I've had good luck buying preowned FG's at half price. I think folks just give up on them before they're fully broke in. They can be difficult to keep tuned before that happens. No rust with gas, the internals stay pristine looking. One preowned FG21 I bought couldn't have had more than a few tanks run through, but that was long enough to fill the mixture screw with felt particles from a cheap filter clunk. It ran terrible in the midrange rpm before I found the problem.

So far the 2 FG's I flew this season and last season have required no valve lash adjustments and bearings are still glassy smooth using no ARO. About 2 gallons burned with one, 1-1/2 gallons with the other. My other 2 FG's haven't flown enough to note anything, but so far so good with FG singles.


Last edited by Glowgeek; 11-17-2022 at 06:18 AM.
Old 11-17-2022, 10:11 AM
  #53262  
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SAT11FG
In Stock
£469.95 convert at current rate of 1.1836=$555.11, unless MMM is not MacGregors

That should be British Pounds.

Last edited by 1200SportsterRider; 11-17-2022 at 10:16 AM.
Old 11-17-2022, 01:33 PM
  #53263  
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Originally Posted by 1200SportsterRider View Post
SAT11FG
In Stock
£469.95 convert at current rate of 1.1836=$555.11, unless MMM is not MacGregors

That should be British Pounds.
Ooooooh, Macgregors. My bad.
Old 11-18-2022, 01:39 AM
  #53264  
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No bad at all, I misread it at first also. There must be some reason among the Yens and dollars and British pounds.
Old 11-18-2022, 01:59 AM
  #53265  
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Coming in March, the OS 62-V has been replaced by a 64-V, the result of a longer stroke and has a Woodruff Key prop drive. It will be $464.99 USD.
Up graded prop sizes: (13x7-8, 14x6)

OS 64-V with Woodruff Key prop drive.

It looks like they opened up the combustion chamber.

Last edited by 1200SportsterRider; 11-18-2022 at 02:23 AM.
Old 11-18-2022, 04:34 AM
  #53266  
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Typical deceiving OS advertising. A 65 has no business running a 13x7,8 or 14x6 prop, more appropriate would be an 11x8, 12x6,7 or maybe a 13x6.

Interesting that new OS 4 strokes are looking more like Saitos all the time, including the shape of the combustion chamber.

Can't rave an OS on a Saito thread.

Last edited by Glowgeek; 11-18-2022 at 04:49 AM.
Old 11-18-2022, 05:18 AM
  #53267  
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That would be dependent on where the cam timing placed the torque curve.

Here are my numbers for the 62-V on 10% Wildcat full synthetic: OS 62-V G-Sonic 13 x 6 10% full syn. 10,380 2,100

Last edited by 1200SportsterRider; 11-18-2022 at 05:23 AM.
Old 11-18-2022, 05:25 AM
  #53268  
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Default Power n economy

After all that research… I find that a 125 with CDI ignition will give me clean burn, low residue, fuel economy, power and low heat…. Now is it a 125 or 125A.

The 125 is a big block.. and old version??
125 larger bearings?
Mounting size the same??

Anyone do the Saito GLOW CH CDI Conversion??
Old 11-18-2022, 05:41 AM
  #53269  
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Fred the 125-A cylinder is on the right in this picture, the A version has deeper cooling fins and a couple of extra ones.


My 125-A and 100

Last edited by 1200SportsterRider; 11-18-2022 at 05:44 AM.
Old 11-18-2022, 11:40 AM
  #53270  
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That 64 v combustion chamber is flat out beautiful!!!

Nicely unshrouded when compared to the 62v version (which is actually more similar to the Saito as far as I can tell.

I have been very pleased with my OS 95v for sure. Seeing the updated shape in the 62v really piques my interest in getting one of my own!
Anybody want to buy a pair of Saito FA-62s ??
Old 11-18-2022, 12:25 PM
  #53271  
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Originally Posted by Jesse Open View Post
That 64 v combustion chamber is flat out beautiful!!!

Nicely unshrouded when compared to the 62v version (which is actually more similar to the Saito as far as I can tell.

I have been very pleased with my OS 95v for sure. Seeing the updated shape in the 62v really piques my interest in getting one of my own!
Anybody want to buy a pair of Saito FA-62s ??
look closer at the pic. it looks like OS also changed the angle of the intake valve. or is that just the camera angle??

Jim
Old 11-18-2022, 12:29 PM
  #53272  
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hmmm. I am now wondering just how well a 3 angle valve seat would work on these little monsters

Jim
Old 11-18-2022, 02:00 PM
  #53273  
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Originally Posted by the Wasp View Post
look closer at the pic. it looks like OS also changed the angle of the intake valve. or is that just the camera angle??

Jim
I saw that too, on second look decided more likely camera angle. The other angle however is the plug angle. It does appear the plug angle has been relaxed.
Old 11-18-2022, 06:20 PM
  #53274  
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Originally Posted by Jesse Open View Post
I saw that too, on second look decided more likely camera angle. The other angle however is the plug angle. It does appear the plug angle has been relaxed.
yes, you can see the 62 plug hole is milled different.

Jim
Old 11-19-2022, 03:51 AM
  #53275  
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It makes me wonder if the 95-V may become a 100, hmmm, food for thought.

Last edited by 1200SportsterRider; 11-19-2022 at 04:37 AM. Reason: Spelling

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