New Products Flash Sale
dmrcflyr2's blog View Details
Posted by dmrcflyr2 | May 22, 2016 @ 02:46 PM | 1,211 Views
Well this engine does run and it runs quite well really. I have seen a few other videos of these engines running and this one runs just like those. For a Chinese made engine from the early 90's is is quite nice really. I have a total of three tanks through it now.

And to prove my assertion about it having one run on it from my previous post. I took the head off after the second tank to see what the valves looked like, Now the first image during dis-assembly is a snapshot taken from the video and isn't the best quality compared to the picture taken after the runs. The second snapshot from the video is showing what they looked like after I cleaned the exhaust valve. They looked the same. I think it is clear that I was correct. It was NOT a NIB engine when I got it.

There is considerably more carbon on the exhaust valve after my two runs than when I opened it up. I think it was merely fired up for about 10-20 seconds if that and then just put back into a box for however many years.

ASP FS80 First run (4 min 57 sec)

ASP FS80 the second run (7 min 50 sec)
...Continue Reading
Posted by dmrcflyr2 | May 22, 2016 @ 10:56 AM | 837 Views
As promised last week, I did open this newly acquired engine up. It was sold to me as a NIB engine but subsequent internal inspection tells a different story. I initially was going to open it up to check for metal shavings from manufacturing and general quality. This is due to this being an early ASP engine made in China. These engine were not known for being of the best quality and I had heard stories of folks finding metal shavings inside new engines.

Although I did not find any metal shavings I did discover this engine was not NIB and never seen fuel. I could tell from the exhaust valve. It was a slightly different color on the face and at first I just dismissed that. But after dropping the valves I could see that discoloration going up the stem of the valve. This is clear proof that this engine had been run at least once before,

I completely disassembled this engine and pulled the bearings. They did not feel very good and I immediately ordered another set from RCBearings. I did lube them up and work them a bit and they felt much better. I did decide to just re-assemble the engine with these bearings and get a run or two in to see how the engine performs. Once the new bearings arrive I will be installing them.

This will also give me the opportunity to test the theory of how many runs this engine really had before I bought it. I cleaned the exhaust valve up to look like new and today I have run the engine 3 times. Those videos to follow.

It turns out this video just so happens to be my 300th video on my YouTube channel!

The first run videos will follow.

ASP FS80 A look Inside and my 300th YouTube Video! (13 min 7 sec)

Posted by dmrcflyr2 | May 17, 2016 @ 05:24 PM | 1,090 Views
Well here is yet another departure for me. I just purchased a CHINESE made engine.... While I normally, of late anyway, stick strictly with Japanese made engines, I made an exception here.

The ASP line of engine hit the market about 1989, at least that's when I bought my first one. I believe the FS 80 was ASP's first foray into the 4 stroke market as direct competition to the OS 70 Surpass. The age of this engine, it's rarity, and the fact that I got it NIB for under $100 is why I bought this engine. I figured if I was the first person to run it and break it in I couldn't go wrong.

As you can see this is a direct clone in design of the OS Surpass line of engines from the time period. Obviously I am not expecting the same quality as I would from an OS engine and I wasn't disappointed in that respect. The external appearance and casting is ...... rough to put it mildly.

Because of the fact that this is a Chinese made engine from 1993, the year this engine hit the market, I will be doing some tear down of this engine before running. I have heard of and seen metal shavings in some of the early engines from China. I want to make sure things are as right as they can be with this engine before I run it. Another reason is that there are no replacement parts for this engine.

Here are my initial pictures of this engine. This weekend I will be shooting a "Look inside" video of this engine as I disassemble and inspect the internal components....Continue Reading
Posted by dmrcflyr2 | May 08, 2016 @ 10:21 AM | 1,134 Views
So just for the fun of it I pulled out the three 45/46 size 2 stroke engines that I have. The engines being a Tower Pro 46, an OS 45 FSR, and an OS 46 SF.

1. The Tower Pro is a new engine not fully broken in. This is about the 4th tank run through it.
2. The OS 45 FSR is a used engine of unknown run time.
3. The OS 46 SF is a used engine of unknown run time.
4. All engines running the same APC 10x6 prop.
5. All running Morgan's Omega 10% fuel
6. All run on the same day, time, weather conditions.

This is purely for fun and is not meant to be a scientific

I thought the results were somewhat interesting. The OS 45 FSR for many years was the benchmark engine; I guess until the 46 SF came out anyway.

The 45 FSR really could not compete at all. I had it maxed out at 12,240 PRM and further leaning did not result in anything but a drop in RPM. It was a relatively low run time engine, so wear and age should not have played a role in its performance.

The 46 SF was obviously the king of this comparison. Again, a used engine, but a great runner nonetheless.

Now the Tower Pro could have been tweaked a bit more and I'm sure it would have turned pretty close to the 46 SF but I really did not lean it out fully.

All in all it was a fun comparison.
Tower vs OS performance runs (5 min 30 sec)

Posted by dmrcflyr2 | May 08, 2016 @ 07:44 AM | 1,315 Views
The nice used FA-56 I just purchased from RCG now has new bearings installed. Just a quick video showing it running after the replacement. It is just another sweet running Saito engine.

Saito FA-56 first run after bearing replacement. (5 min 22 sec)

Posted by dmrcflyr2 | May 07, 2016 @ 03:51 PM | 2,135 Views
This engine has waited possibly 30 years for this! Introduced to the market in 1983 and this being an un-run engine, who knows, maybe it has waited that long.

As usual with an OS engine of this vintage, there was nothing difficult about getting it running. I over primed it initially, but once that was cleared it fired right up. My first tank was spent running it between 4100 RPM and 6500 RPM alternating between the settings. This comes directly from the OS manual.

My second tank I began to lean it out just a bit peaking it at about 8500 RPM. It obviously needs more tanks and gentle running before reaching peak power but even on the second tank the idle was quite good. The airbleed screw was set at the factory and I didn't touch it. It was covering about half of the hole. All in all no surprises here, just another great running high quality OS engine.

OS FS-61 First drink of fuel (4 min 31 sec)

OS FS-61 Second run (6 min 1 sec)
...Continue Reading
Posted by dmrcflyr2 | May 05, 2016 @ 06:20 PM | 1,177 Views
I have two recent acquisitions scheduled for the first runs by me this weekend.

The first is a very nice used Saito FA-56. This actually will not be the first time I ran this engine. I did a box to the bench review of it last weekend. The subsequent look inside showed the rear bearing was quite noisy and in need of replacement. It was a metal shielded bearing with the shields on both sides. This is not what Saito would install in this engine and the PO that installed this obviously did not know this. Either way it was quite rough and has been replaced now. So this will be the first run after bearing replacement.

The second engine is a very nice, never seen fuel 1983 OS FS-61 four stroke engine. I was pleasantly surprised to discover that this gem I found on eBay was a never run engine. I will be starting the break-in of it this weekend.
Posted by dmrcflyr2 | May 04, 2016 @ 07:01 PM | 1,722 Views
So I have been taking some chances on buying engines from eBay in the last few months. I have been very happy with my purchases. My latest purchase for a whopping $52 was a vintage 1983 OS FS-61 four stroke engine.

This engine was listed as used and the box was very worn and tattered. It was not a complete package either. It came only with the box, a print out of the instructions manual, a spare head shim a few o-rings and a new piston ring. I was not disappointed in these things, after all, this was a used engine right?


I was going to make this a subject of another box to the bench review but I would not have been able to do that until Saturday. I decided to do A Look Inside instead and boy am I glad I did. As it turns out this engine is NEW and never run!!! What a great surprise! I was going to run this as a used engine, but now knowing it has never seen fuel I need to treat it very differently. The video shows the internal condition, but what it can't show is the smell of the tooling oil from the factory. There was not a single hint of glow fuel residue or smell in this engine at all!

OS FS-61 A Look Inside (10 min 58 sec)

Posted by dmrcflyr2 | Apr 24, 2016 @ 02:56 PM | 1,587 Views
I bought my first Tower Pro 46 back around 2000ish, but I had several of the sister engines, the GMS 47, prior to that. Now of late I have been selling off all non-Japanese made engines. I am primarily interested in Saito, Enya, and OS engines for their quality, reliability, and performance. But when I saw this new never run engine on eBay for $26 I knew I had to have it. That was the best $26 I have spent in a long while.

Granted it is not a Japanese made engine but having owned several before I do know they are powerful and fairly reliable. Now this one gave me a bit of trouble initially today. I could start it and it would run for about 6 seconds then die. As it turns out the low speed needle was set too lean either at the factory or by the previous owner. I am certain the engine had never been run before due to the look of the inside and smell of the engine.

Once I got the low speed needle ironed out tuning was fairly easy. Now it hand starts easily and runs quite well. I only put two tanks through it today but I would feel comfortable putting it in my Kaos as it is.

Tower Pro 46 First runs (9 min 37 sec)

Posted by dmrcflyr2 | Apr 16, 2016 @ 05:24 PM | 1,403 Views
I mounted this engine to the test stand today and began shooting the video. It was shortly after the first run attempt that I relearned something about glow engines and glow plugs.

About 2 months ago I bought several sleeves of Enya #3 glow plugs. Why would I do this? Because these plugs are some of the best you can get, and unfortunately no LHS stocks them anymore. So I have to order them and I run primarily 4 stroke engines. I have read many posts and reviews stating that these plugs are great in 2 stroke engines as well. Thus far I have had the same experience until the last two OS engines.

I have used the Enya plug with great success in a Webra Speed 61, an OS 40 FP, my OS 40 FSR, etc. But this 45 FSR and my 46 SF engines simply do not like these plugs for some reason.

Now back to the original story line, running this 45 FSR engine. The engine would not hold full throttle at any richness setting of the high speed needle, nor would it idle at all. After fooling around with carb settings and the engine running poorly, I finally decided to change glow plugs. Now the Enya #3 I installed was brand new too, so I was not initially questioning the plug for the poor running results. I pulled a plug from my Enya SS40BB 2 stroke engine and installed it into this engine. Suddenly the engine would hold full throttle settings and would actually idle without dying.

I believe the plug I used was a McCoy MC-59 as I had purchased some for the few 2 stroke...Continue Reading
Posted by dmrcflyr2 | Apr 13, 2016 @ 05:47 PM | 2,077 Views
I just scored a really nice seemingly low time OS 45 FSR. This engine was introduced to the market in 1978 as an increased bore of the 40 FSR. I could not find a review on this engine so I have little more factual information on it. My engine is the ABC version and I opened it up as soon as I got it for my normal inspection.

The compression was excellent and the looks of the crankshaft counter weight and rear bearing show NO rust or corrosion. The bearings still feel very smooth, but I have no idea if they are the originals. Nevertheless I will not be replacing them at this time.

The top of the piston also indicates a very low run time engine. The odd thing about the 45 FSR is that I seldom see them for sale or hear anything about them, I can only assume that since it is an OS engine from the late 70's that it is a very high quality mill. On to the pictures........Continue Reading
Posted by dmrcflyr2 | Apr 10, 2016 @ 08:35 AM | 1,665 Views
This post shows the first run after rebuilding this engine. It really is a sweet engine. It may not be a powerhouse by today's standards or even in 1981 when it was released, but it is a very good running engine. It started on the first flip. This engine did take some considerable prime to get started even on subsequent runs I have done today.

Unfortunately, the age and low power do not make this a very attractive engine to most folks in the glow market today. Everyone seems to value absolute power now over high quality. It is my belief that the quality of this engine is unmatched. In my mind, this is an example of the pinnacle of OS quality as are all of their engines from the 80's through mid 90's.

As such it will not be sold , plus it being a gift to me, it has a bit more meaning and value.

OS FS-40 First run after rebuild (6 min 46 sec)

OS FS-40 clips (2 min 31 sec)
...Continue Reading
Posted by dmrcflyr2 | Apr 09, 2016 @ 06:22 PM | 1,908 Views
That would be Kimchiyuk! So I have sold this member a few engines, bought a few from him, and we have corresponded several times. Well I was about to lay in my recliner and take a nap when I here the postal truck deliver the mail. I figure I better get that before I nod off. Out to the mail box I go and when I open it there is a small box! WTH? The engine I just bought from eBay could not be here yet.... What is this. I see the return address and wonder if I made a purchase I did not remember.

So I anxiously go into my room and open this package. I find a completely disassembled OS FS-40 four stroke engine! Wholly moley! I love engines, let alone totally disassembled ones! There was this note also....

In summary it stated that Dustin had been working on this engine but lost the desire to complete it. Knowing I am an avid engine lover, he sent it to me. The note went on to say and I quote, "Keep it, sell it....It's yours."

I quickly scanned the box and parts and it looked like everything was there. The caveat being the piston pin was still firmly attached to the piston. These can be quite tricky to remove. OS engines require the cylinder sleeve to be pulled out and then a hole in the casting is exposed allowing careful extraction of the piston pin. A task much easier said than done especially if the engine has sat for any time at all, or has not been run in a while.

Long story short, it took considerable oil, heat, a soak in LA's Totally...Continue Reading
Posted by dmrcflyr2 | Apr 06, 2016 @ 12:19 PM | 2,306 Views
Today's post is a blast from the past. I recently purchased a NIB OS 40 FSR ABC 2 stroke engine. This engine was introduced to the market in 1975 and had a production run through the early 80's. I am not entirely sure when this engine was discontinued but the SF series of engines replaced it. The 40/46 SF engine hit the market in 1987 so this engine was available up until that time at least.

The box artwork looks to be from the early 80's so I have a real classic here. Today I decided to shoot some videos of how I setup a 2 stroke engine for the first time running it. I have 4 total videos to include the first run and the third run where I begin to set the high speed needle, followed by setting the low speed needle for proper idle.

This post can also be viewed on my website along with many other instructional videos.

Initial setup
OS 40 FSR Setup for the first run (8 min 51 sec)

The first run
OS 40 FSR First run (7 min 37 sec)
...Continue Reading
Posted by dmrcflyr2 | Apr 06, 2016 @ 06:11 AM | 2,667 Views
Are you interested in glow engines? Do you have questions about operation, repair, or maintenance? Would you like someone to clean up and repair your engine for you?

Well I for one have not and will not succumb to the electric flight revolution. I am staying true to my roots in this hobby and sticking with glow power airplanes. I have a new website where the main focus is in glow engines. It is heavily video oriented because face it, most folks are visual learners.

I have a series of videos that address the most basic glow engine topics. These include bearing replacement, clean up, dis-assembly and re-assembly. I include both 2 and 4 stroke engines.

Plus for those interested in seeing a number of engines running, I have plenty of those too. So if you are into glow engines I think you will find something of interest at my site.

I am open to suggestions on content so if you need information on an issue with your engine please contact me.
Posted by dmrcflyr2 | Apr 02, 2016 @ 04:15 PM | 2,105 Views
For those of you who follow my blog post, please join me on my new webite.

I will be transferring much of the content of this page to my site over the next few weeks. Please stop in and check out my site. I'll be adding content as often as I can.
Posted by dmrcflyr2 | Mar 26, 2016 @ 05:28 PM | 2,538 Views
All this Saito 45 cam gear swap out stuff has me wanting to look at all 4 of the Saito 45's I have right now. I have 4 and that is the most I have ever had at one time.

From Left to right in all photos (If you do not click on view all images in thread you are missing half the pictures)
FA-45S(pecial), FA45, FA45 MK??, FA45 MKII

The FA-45S came out in the early 90's from what I gather from the box color, but it could have been 1989. It is an ABC with ring construction. it features a 'hotter'cam gear to make more power than the standard MKII. It has the most up to date carburetor and intake manifold. Basically it represents the most modern Saito out of the four.

The FA-45 is the iteration of the 45 Saito put out. It came out in 1982 and features a two piece head design, and AAC ringless construction. If you look closely at the photos you will see the head design, intake manifold and carb differences from the 45S.

The FA-45MK??. This engine I picked up recently and is a bit of a conundrum for me. It has the old style carb, but it was cut off, and it has a strange crankcase that simply has Saito and 45 lightly stamped on the case. It does not have the raised up section with the stamping on it. ***UPDATE***I was looking closely at this and the FA-45 and this share the same crankcase design. That must make this a VERY early 45, possibly from 1983-84.
(I figure this is a mid 80's version before they finalized the crankcase design. Or maybe they...Continue Reading
Posted by dmrcflyr2 | Mar 26, 2016 @ 11:25 AM | 1,764 Views
Well I have completed the first two steps in this experiment. The first pictures are of the completed engine in the stock form after reassembly. It sure is a nice looking engine!

I ran the engine in its stock form and peaked it out. You can see the RPM figures on the video, but I reached a peak of 9990 RPM. My battery in the camera died before that reading was shown.

I then swapped out for the 50 cam gear housing and other parts, and reset the valve lash. Without touching the needle valve from the last run the engine was already at peak. It hit 10440 RPM. That is a gain of 450 RPM. The idle and transition did not seem to be affected at all.

The parts required to make this swap out are as follows:

1. Cam gear housing for a Saito 50/56/45S
2. Cam gear for 50.
3. Cam followers for 50/56
4. Push rods for 50/56

To make the change permanent you will also need push rod tubes. I did not use push rod tubes in my video to keep things a bit simpler.

The final part of this experiment will be when the cam gear from the Saito 56 arrives. I will repeat the same steps and record the readings.
***UPDATE*** I checked a Saito Manual and found that the 50 and 56 share the same cam gear. Thus a definite conclusion to the experiment.

I have since added a video shot today of my 45S as a baseline run for what I am trying to achieve with this experiment. The funny thing is, I have already matched the performance of the 45S with the 50 Cam gear. The peak RPM readings are the same. The 56 cam gear might not yield any further increase.

Saito FA-45 MKII Cam gear swap (10 min 20 sec)

Saito FA-45S Baseline run (5 min 58 sec)

Posted by dmrcflyr2 | Mar 25, 2016 @ 05:35 PM | 2,649 Views
I was not really too sure what to title this post, so it ended up being long. Here is the story:

I purchased a Saito FA-45 MKII from eBay. This is a very nice engine that came complete with box, most of the tools, and all of the paperwork normally shipped with these engines. One piece of paper that came with it was EXTREMELY interesting to me anyway, the original bill of sale! This engine was purchased from Circus Hobbies in Las Vegas NV in May of 1988! Very cool.

Anyway, this engine really didn't need me to do anything to it. It was pretty clean and felt like it would run as it was. It was a bit stiff, the feeling of an engine that has not been run in years. So being me, I decided to completely disassemble it and inspect the bearings. This was one of the easiest tear downs ever. Really nothing was stuck or gave me any issues at all. The bearings were a bit gummed up and after cleaning I decided to just install them again. I can always replace them later if need be.

And then it hit me. Why not try something I have wanted to do for a very long time? I have been wanting to convert a 45 MKII to a 45S for quite a while. To my knowledge a FA-45S is just a 45 with a cam gear of a 50 or 56. The 56 was not available when the 45S came out and real factual information on Saito engine history is a bit difficult to obtain. The best I could piece together from other forums and folks that have done this was that the 45S had a 'hotter' cam.

I set out to find a...Continue Reading
Posted by dmrcflyr2 | Mar 14, 2016 @ 07:37 PM | 2,749 Views
I was restoring and getting this OS 46 SF running for a friend and sort of fell in love with the engine. We worked out an arrangment and it became mine. This was a subject of an earlier post.

This particular engine had some damage but looked to be a very low run time engine. One of the mounting lugs was broken pretty badly but the engine still ran well. There was no intrusion into the crankcase itself.

The muffler also had some strange damage, manufacturing defect or something resulting in a strange hole at the end of the muffler.

I have used JB Weld on many occasions on a variety of applications from motorcycles, to model engines. I figured it was the best to attempt to fix these issues as well.

On the engine mounting lug I created a form using Popsicle sticks glued and clamped together. Unfortunately I did not take a picture of the mold. I filled the area with what seemed to be a sufficient amount of JB Weld and allowed it to cure for about 5 hours before removing the mold sticks. This allowed it to cure just enough to remove the sticks and begin the sanding process. Once sanded I will allow this to cure for another 24 hours or so before doing anything else to it. SInce I plan on using a universal strap mount type of engine mount I really do not need to re-drill the hole, but I might do it anyway when fully cured.

The muffler I inserted paper towels into the chamber to act as a bridge for the JB Weld to cover the big hole. This I allowed to cure...Continue Reading