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RE: Saito 91 on Gasoline - 3/17/2011 2:25 AM   
radial1951


 

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Hi w8ye,  that was a timely post!

Is your "regular pump gas" straight 92 unleaded? Here in Ozzie Land we have E10, 92, 95 and 98 Premium.

The 92, by law, can have up to 5% ethanol. The Pennzoil 2 stroke oil is available here too.

Is "the Saito carb" the standard Saito 150 glow fuel carby?

Regards RossG
radial1951
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RE: Saito 91 on Gasoline - 3/17/2011 4:10 AM   
w8ye



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Status: offline 		Yes it is the regular Saito 150 glow carby

Our regular pump gasoline is listed as being 89 octane but it is the same as your 92. It is E10. The octane ratings are measured different

I have about 10 hours on it.


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RE: Saito 91 on Gasoline - 3/17/2011 4:45 AM   
captinjohn


 

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quote:

ORIGINAL: w8ye

Yes it is the regular Saito 150 glow carby

Our regular pump gasoline is listed as being 89 octane but it is the same as your 92. It is E10. The octane ratings are measured different

I have about 10 hours on it.


What brand of oil are you using and the Ratio?  Thanks  Capt,n

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RE: Saito 91 on Gasoline - 3/17/2011 7:26 AM   
radial1951


 

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Hi captinjohn

See Page 2  , second last post #49.

Regards RossG
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quote:

ORIGINAL: captinjohn

What brand of oil are you using and the Ratio?  Thanks  Capt,n
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RE: Saito 91 on Gasoline - 3/17/2011 3:09 PM   
wingspan99



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Status: offline 		In reply to RossG (Radial) ,
E85 is closer in fuel mixture to methanol than straight gas and should give a steadier needle setting and better power in a Saito engine than straight gas. I think my plug was fouling because of the castor oil I used, I'm going to try some synthetic. Sadly, I don't spend much time tinkering with my RC stuff since I got an RV-4. -Tom in CO

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RE: Saito 91 on Gasoline - 3/28/2011 5:58 AM   
Skyflyer



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Status: offline 		Jezmo, would you please tell me where I can buy the parts to convert my Saito engines to gas...or, where I could send engines for conversions? Thank you!

Jerry

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RE: Saito 91 on Gasoline - 4/15/2011 1:59 PM   
noginblue


 

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Status: offline 		Hi can anyone tell me what size hardened dowel and bearing you use to convert to needle roller bearing?

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RE: Saito 91 on Gasoline - 4/15/2011 3:57 PM   
w8ye



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Status: offline 		The Saito 91 doesn't have enough room in it to convert the rod bottom end to needle bearings


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RE: Saito 91 on Gasoline - 4/16/2011 8:20 AM   
noginblue


 

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Status: offline 		Ah sorry didnt explain properly as brain wasnt working, earlier in the post someone was on about the st g90 which is what i have and have already converted it to gas but want to lower the oil content. Not highjacking thread but seems some people on this thread know more about it then me

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RE: Saito 91 on Gasoline - 4/28/2011 1:23 AM   
box car



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Status: offline 		I am building a twin with 2 ST G90 on it. I would like to put ignition and a CM6 plug on them and still run glow fuel. Will this work? The reason I want to do this is I want to mount tacks in the wing behind the engines.
Ken


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RE: Saito 91 on Gasoline - 4/28/2011 1:50 AM   
w8ye



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quote:

ORIGINAL: noginblue

Ah sorry didnt explain properly as brain wasnt working, earlier in the post someone was on about the st g90 which is what i have and have already converted it to gas but want to lower the oil content. Not highjacking thread but seems some people on this thread know more about it then me


16:1 gas/oil when running the bushed connecting rod

You will need to search for the needle bearing the others are using and select the proper size drill rod for the crank pin to run less oil.



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RE: Saito 91 on Gasoline - 4/28/2011 1:52 AM   
w8ye



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quote:

ORIGINAL: box car

I am building a twin with 2 ST G90 on it. I would like to put ignition and a CM6 plug on them and still run glow fuel. Will this work? The reason I want to do this is I want to mount tacks in the wing behind the engines.
Ken


Should run fine but there will be a problem with the reach on the CM-6 plug. You will need to shim the plug up with two washers under the threads



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RE: Saito 91 on Gasoline - 4/28/2011 1:26 PM   
box car



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Status: offline 		Thank you for the info.


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RE: Saito 91 on Gasoline - 5/17/2011 1:19 AM   
mvarzoni


 

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Status: offline 		how bad does the spark plug may affect the engine tunning?

I´m using cheap chinese 1/4-32 on my ST90 and it is great on high speeds, but a little unstable on lower speeds.

Mauricio

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RE: Saito 91 on Gasoline - 5/17/2011 1:38 AM   
w8ye



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Status: offline 		My Saito 150 idles real well on gas with a RCEXL 1/4-32 plug and the original carb

You may have some other problem like an air leak somewhere?


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RE: Saito 91 on Gasoline - 5/17/2011 9:30 PM   
Jezmo



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Status: offline 		The little RCEXL plug works great in my ST51, ST90, Saito 91 and Saito 180. No idle problems at all with any of them.

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RE: Saito 91 on Gasoline - 5/17/2011 10:23 PM   
w8ye



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Status: offline 		I have a Saito 125 or SG20 with a RCEXL 1/4-32 plug also and it runs fine at idle.


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RE: Saito 91 on Gasoline - 5/20/2011 10:06 PM   
box car



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Status: offline 		I am instilling Rcexl on 2, ST- 90 with 1/4-32 plugs. How do you lock the drive washer in place after the timimg is set?
Ken


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RE: Saito 91 on Gasoline - 5/21/2011 1:42 AM   
w8ye



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Status: offline 		I just tighten the prop


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RE: Saito 91 on Gasoline - 5/21/2011 11:06 AM   
box car



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Status: offline 		Thank you, just wanted to make sure they did not use a set screw some how.
Ken


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RE: Saito 91 on Gasoline - 5/21/2011 12:56 PM   
w8ye



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Status: offline 		On some engines they may slip a couple times before they settle down and you will have to re-adjust the timing but I never had this problem.

If seen the prop drive washers that were split and these will never hold a permanent setting. If you have trouble, examine the hub carefully.


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All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Engine Conversions >> RE: Saito 91 on Gasoline
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