Welcome to Club SAITO !
#9801
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RE: Welcome to Club SAITO !
Ernie Misner:
Me:
Hello, any help on the lsn ?
Are you familiar with the low speed adjustment on the Saitos for break in? They come set from the factory WAY rich.
Ernie; Please enlighten me... In fact, I'd very much appreaciate any break-in info or Saito basics you can give me.
#9803
Join Date: Aug 2006
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RE: Welcome to Club SAITO !
Couple more Saito 125 break in questions..
Fellas.. couple of break in questions.. I started breaking in my new 125 last week, and I'm going to get it finished up tomorrow. Last week I did the runs 10-15 minutes of 4K RPM.. I think at the suggestion of a few folks here I'm going to do the following: 10 mins at 5, 6, and 7K followed by the low end adjustments.. My question is this regarding the low end.. I have a few guys at my field who have never leaned out the low end.. Also seen a few folks on here who have left the low end at the factory setting.. Is there any danger of getting the engine "too lean" and doing any damage by adjusting the low end? I have a pretty good understanding of how to get the top end set right, just don't want to get to carried away with the low end.. As a side note, this engine resides in a Seagull Edge 540 with a fairly small tank, so I do want the engine's economy to be the best that it can me..
Thanks again guys..
John..
Fellas.. couple of break in questions.. I started breaking in my new 125 last week, and I'm going to get it finished up tomorrow. Last week I did the runs 10-15 minutes of 4K RPM.. I think at the suggestion of a few folks here I'm going to do the following: 10 mins at 5, 6, and 7K followed by the low end adjustments.. My question is this regarding the low end.. I have a few guys at my field who have never leaned out the low end.. Also seen a few folks on here who have left the low end at the factory setting.. Is there any danger of getting the engine "too lean" and doing any damage by adjusting the low end? I have a pretty good understanding of how to get the top end set right, just don't want to get to carried away with the low end.. As a side note, this engine resides in a Seagull Edge 540 with a fairly small tank, so I do want the engine's economy to be the best that it can me..
Thanks again guys..
John..
#9804
Join Date: Jun 2006
Location: Cincinnati,
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RE: Welcome to Club SAITO !
ORIGINAL: Geardaddys
Couple more Saito 125 break in questions..
Fellas.. couple of break in questions.. I started breaking in my new 125 last week, and I'm going to get it finished up yesterday. Last week I did the runs 10-15 minutes of 4K RPM.. I think at the suggestion of a few folks here I'm going to do the following: 10 mins at 5, 6, and 7K followed by the low end adjustments.. My question is this regarding the low end.. I have a few guys at my field who have never leaned out the low end.. Also seen a few folks on here who have left the low end at the factory setting.. Is there any danger of getting the engine "too lean" and doing any damage by adjusting the low end? I have a pretty good understanding of how to get the top end set right, just don't want to get to carried away with the low end.. As a side note, this engine resides in a Seagull Edge 540 with a fairly small tank, so I do want the engine's economy to be the best that it can me..
Thanks again guys..
John..
Couple more Saito 125 break in questions..
Fellas.. couple of break in questions.. I started breaking in my new 125 last week, and I'm going to get it finished up yesterday. Last week I did the runs 10-15 minutes of 4K RPM.. I think at the suggestion of a few folks here I'm going to do the following: 10 mins at 5, 6, and 7K followed by the low end adjustments.. My question is this regarding the low end.. I have a few guys at my field who have never leaned out the low end.. Also seen a few folks on here who have left the low end at the factory setting.. Is there any danger of getting the engine "too lean" and doing any damage by adjusting the low end? I have a pretty good understanding of how to get the top end set right, just don't want to get to carried away with the low end.. As a side note, this engine resides in a Seagull Edge 540 with a fairly small tank, so I do want the engine's economy to be the best that it can me..
Thanks again guys..
John..
Anyway, as to your questions. There are always some people who don't touch the LSN on their Saito. They tend to be the same people who complain about how thirsty Saitos are, and how much they vibrate. The real cause of their problems is the LSN is too rich. It is easy to tell when your LSN is too lean. So, don't hesitate to lean your LSN out.
Just peak the HSN (use a tach!) and leave it there for now. Then turn your LSN in about 1/4 turn. Idle the engine for at least 30 seconds, then rapidly go to full throttle. If it doesn't quit, lean your LSN some more. Keep at it, until the engine quits when you go from idle to full throttle, and then richen the LSN about 1/8 turn. Then go back and richen the HSN up from peak about 300 to 500 RPM's - whatever makes you feel safer. If your 1.25 is the same as mine, you will probably end up turning the LSN in about 2 full turns.
#9807
Join Date: Aug 2006
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RE: Welcome to Club SAITO !
Ken,
Thanks much... I'll lean it as you described.. Supposed to be mid 40's tomorrow in Maryland so I should be able to hack it outside for a while!! Looking forward to getting the Seagull into the air..
John..
Thanks much... I'll lean it as you described.. Supposed to be mid 40's tomorrow in Maryland so I should be able to hack it outside for a while!! Looking forward to getting the Seagull into the air..
John..
#9808
Join Date: Jun 2006
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RE: Welcome to Club SAITO !
ORIGINAL: Geardaddys
Ken,
Thanks much... I'll lean it as you described.. Supposed to be mid 40's tomorrow in Maryland so I should be able to hack it outside for a while!! Looking forward to getting the Seagull into the air..
John..
Ken,
Thanks much... I'll lean it as you described.. Supposed to be mid 40's tomorrow in Maryland so I should be able to hack it outside for a while!! Looking forward to getting the Seagull into the air..
John..
BTW, it won't do it easily, but this bird WILL tip stall if you get it too slow on your approach! The landing gear is a bit weak too, but overall, it is a fine plane. I've considered buying another one, just in case I put this one in.
#9809
My Feedback: (3)
RE: Welcome to Club SAITO !
I would suggest the following parts added to Ken's LSN adjustment advice:
first, advance the throttle slowly and listen for the engine to wheeze or start to die (too lean). Then, advance the throttle more rapidly if it first sounded good. This way, if it is too lean, you won't get the engine dying rapidly or backfiring suddenly......most of the time. My 1.25 backfires gently and you can barely hear it when it does.
1/4 turns may be too much for incremental adjustments. I run the throttle about 1/3 and start screwing in the adjustment screw until I hear the engine start to speed up like the HSN does. At that point, I use 1/8 turns to try and get it set right.
Everyone has their method for adjusting it for what works for them.
first, advance the throttle slowly and listen for the engine to wheeze or start to die (too lean). Then, advance the throttle more rapidly if it first sounded good. This way, if it is too lean, you won't get the engine dying rapidly or backfiring suddenly......most of the time. My 1.25 backfires gently and you can barely hear it when it does.
1/4 turns may be too much for incremental adjustments. I run the throttle about 1/3 and start screwing in the adjustment screw until I hear the engine start to speed up like the HSN does. At that point, I use 1/8 turns to try and get it set right.
Everyone has their method for adjusting it for what works for them.
#9810
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Join Date: Mar 2005
Location: Eagle PassEagle, Pass
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RE: Welcome to Club SAITO !
Does anybody Know where could I end to repair my Saito 80? the crankshaft is broken.
That happen when I was tightening the propeller. I know sending it to saito dealer would be, however I dont know if that is expensive or even better if anybody (with experience)could fix it at a low cost.
That happen when I was tightening the propeller. I know sending it to saito dealer would be, however I dont know if that is expensive or even better if anybody (with experience)could fix it at a low cost.
#9811
Join Date: Jun 2006
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RE: Welcome to Club SAITO !
ORIGINAL: vmgo22
Does anybody Know where could I end to repair my Saito 80? the crankshaft is broken.
That happen when I was tightening the propeller. I know sending it to saito dealer would be, however I dont know if that is expensive or even better if anybody (with experience)could fix it at a low cost.
Does anybody Know where could I end to repair my Saito 80? the crankshaft is broken.
That happen when I was tightening the propeller. I know sending it to saito dealer would be, however I dont know if that is expensive or even better if anybody (with experience)could fix it at a low cost.
I doubt that the crank could be drilled and tapped for another threaded section to be added, because that crank is made of some pretty tough metal. However, I guess it is possible that someone might be able to drill and tap it? It would probably require some carbide tooling, and perhaps a specialized jig to hold it in a lathe. It might just be easier and cheaper to replace the crankshaft.
http://www.horizonhobby.com/Products...rodID=SAI8023B
You would also need a gasket set, and probably some bearings. There may be other parts that need to be replaced as well, depending upon it's condition.
If you don't want to repair it yourself, you could send it to Horizon. I haven't had any non-warranty work done by them, but I have heard that they are as reasonable as anyone else. You will have to pay for parts and labor, but who knows? Perhaps they will feel sorry for you and cut you a break. They might think that a crankshaft shouldn't break just from tightening the prop either!
#9812
My Feedback: (16)
RE: Welcome to Club SAITO !
Contact this guy. He will do it all
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
#9813
My Feedback: (16)
RE: Welcome to Club SAITO !
Contact this guy. He will do it all
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
#9814
Join Date: Jun 2006
Location: Cincinnati,
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RE: Welcome to Club SAITO !
ORIGINAL: w8ye
Contact this guy. He will do it all
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
Contact this guy. He will do it all
Bill Jensen
51 Hillside Dr.
Beacon Falls, CT 06403
203 888 4819
[email protected]
www.bj-model-engines.com
#9818
My Feedback: (16)
RE: Welcome to Club SAITO !
It would be touchy because the front of the crank would have to be supported on a rest and the back has a hole the may or not be on center. Then the crank will have to be driven. He may could do it in a four jaw clamped on the counter weight if he dialed it in and had a real good chuck? It would need to be faced off and center drilled where it is broken before it is drilled
#9819
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RE: Welcome to Club SAITO !
ORIGINAL: Ron Mckinley
Why is drilling and taping definately the way to go as apposed to just installing a new crank? That's a process I've not heard of before. Ron
Why is drilling and taping definately the way to go as apposed to just installing a new crank? That's a process I've not heard of before. Ron
Actually, I suppose I was thinking that if it were mine, and I could manage to drill and tap it myself...... Nah!
#9822
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RE: Welcome to Club SAITO !
Yeah, it was a bad idea. I probably came up with it because of the thread about the K&B engines having the front drilled and tapped for a stud.
I think that is a better method of attaching the prop anyway. That way, when (rather than IF) it gets bent - you just replace the stud! What's not to love?
I think that is a better method of attaching the prop anyway. That way, when (rather than IF) it gets bent - you just replace the stud! What's not to love?
#9823
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RE: Welcome to Club SAITO !
W8ye,
In reading the posts on tapping a crank, I had a 150 Saito that sort of hit a little hard, you might say, and bent the crank, I took it over to a friends place, Larry Jenno, ( the J on the Zinger props), he lives here in Vegas, he has a milling machine that it takes 30 seconds to walk around, as he is still building engines, anyway he was going to try and straighten it, but it snapped being so hard, so he drilled and tapped it to a 1/4X28 thread, saying that props start out at 1/4 in. anyway so it won`t have to be reamed, anyway, now if it bends I just cut off a piece of allthread and make a new shaft, neato, I have ran the engine but have not put it on a plane yet..... just a line to say that it can be done.....thanks ...John
Beings he is a friend on the charges I do not know if it would be any cheaper than a new crank or not if one had to get it done at a machine shop at full price........
In reading the posts on tapping a crank, I had a 150 Saito that sort of hit a little hard, you might say, and bent the crank, I took it over to a friends place, Larry Jenno, ( the J on the Zinger props), he lives here in Vegas, he has a milling machine that it takes 30 seconds to walk around, as he is still building engines, anyway he was going to try and straighten it, but it snapped being so hard, so he drilled and tapped it to a 1/4X28 thread, saying that props start out at 1/4 in. anyway so it won`t have to be reamed, anyway, now if it bends I just cut off a piece of allthread and make a new shaft, neato, I have ran the engine but have not put it on a plane yet..... just a line to say that it can be done.....thanks ...John
Beings he is a friend on the charges I do not know if it would be any cheaper than a new crank or not if one had to get it done at a machine shop at full price........
#9824
RE: Welcome to Club SAITO !
ORIGINAL: w8ye
I run a APC 16-8 two blade on my Saito 150 and it loads it down pretty good. It turns in the 9200-9300 rpm range
Horizon also recommends a 16-8 two blade for the 180 and they say 9300 rpm. The biggest prop they recommend for the 180 is the 18-6
I run a APC 16-8 two blade on my Saito 150 and it loads it down pretty good. It turns in the 9200-9300 rpm range
Horizon also recommends a 16-8 two blade for the 180 and they say 9300 rpm. The biggest prop they recommend for the 180 is the 18-6
thanks