wood

My Feedback: (2)

I was tuning my YS 63 last night with a 13-4W APC and was gettting about 10,300 consistently. At this setting there was good smoke, transition, and idle. A tachometer is a must when tuning this engine, as small amounts of adjusting can make a big change in performance.

Does anyone else have tach readings on their YS 63 FZ?

WOOD

Richard L.

My Feedback: (24)

11,500 rpm consistently on Graupner 12x7 and Powermaster YS 20/20 fuel.

Richard L.

My Feedback: (24)

wood

My Feedback: (2)

nice bird, what is that?

Richard L.

My Feedback: (24)

Kyosho Zero.

tora

My Feedback: (1)

Hey richard, nice pilot for the zero. Where did you get em?

Terry

Richard L.

My Feedback: (24)

That's an H9 1/7th scale Japanese pilot from Horizon. I painted the pilot myself.

tora

My Feedback: (1)

Richard,

I have another question. What size spinner are you using and who makes it? Looks pretty scale.

Richard L.

My Feedback: (24)

That's a Tru-Turn 2 1/4" spinner.

lxcoupe

My Feedback: (34)

I'm getting 11,900rpm with a 13-4w apc on byrons 30% w/24% oil. Peak is right around 12,200. That is with only 1 gallon of fuel thru it so far. I have this engine on a OMP katana and has foamy like power. it is unbelievable. I'm trying to locate some ys20/20 fuel in my area but i've had no luck. What nitro content are you running? That sounds like your not using very much nitro.
AL Renkel

wood

My Feedback: (2)

I'm using wildcat 20/20, type F plug, APC 13-4W..........about 700ft above sea level. I'm going to test some tonight witht a new glow plug. Mine is not the new S engine. But it was very unlimitied when new. It may need a new ring.

Wood.

tora

My Feedback: (1)

Sorry to bother you again Richard,

BUt.......

Your canopy is painted very straight. How did you do it? Did you paint the inside of the canopy like the instructions say?

Thanks again,

Terry

Razor-RCU

My Feedback: (50)

Better late than never-

My YS-63FZ turned an APC 12x7 11.5K consistently--- Awesome performer!

abacro

running Byron ys 20/20 and a master airscrew 12/6 my ys 63 is turning 13.500 on the ground and it sounds like it's turning around 15k in the air

JoeAirPort

My Feedback: (41)

That's a little high. Keep it under 12,000 if you want it to last a while.

abacro

Thats just it Joe,it's been happily flying a 6.5 pound su 31 for over 2 years now and i havent had a single prb out of it. I figure if it's going to blow,shouldn't it have done it by now? I'll keep my fingers crossed it dont blow!

Rhilluk

I've been getting 10,300 on a 14x4w with 20/20 fuel. I know i should be using 13x4w but thats on the way. I did find the spool up very slow and moved to a 12x6 and got 12,000.

I've been having problems getting my ys63 to idle at 2,000 rpm consitantly, get as low as 2300 but any lower and it cuts. I know it's my idle setting but which way should I go, leaner, richer, also which way on the screw for each one, anti or clock?

Richard L.

My Feedback: (24)

Try going leaner on the low end. Lean is anti-clockwise, which is stated in the manual under "LOW SPEED ADJUSTMENT". Many people don't bother to read the manual and try to lean out the low end by turning the screw clockwise, which is wrong. On the high end, lean is clockwise as usual. Please read the manual if you haven't done so.

ronin8451

My Feedback: (6)

I know it's not a .63, but my used YS .53 gets 11,338 RPM's on a 13 x 4 prop running 30 % heli fuel. This think yanks my Accel Katana all over the place, hovers at 1/4 throttle !

Rick

camss69

My Feedback: (46)

I tached mine today with powermaster 20/20, apc 13x4w and was getting around 10.3k on mine as well, sounds like we are all in the ballpark.

fd59

That sounds very weak for a YS .63. I have a Magnum .61 FS that will turn the apc 13x4W 9800-10000 on 15% CoolPower and the APC 13x4 Sport over 10500. Based on what I have seen a YS .63 on 20% should turn a 13x4W at least 11500 and more like 12K.

RCAddiction

My Feedback: (87)

Well, Dave, I tried the 14x4 Zinger, with the leading edges of the tips rounded like APC style. Didn't help. Rpm dropped to 8900, and got lower and lower as the engine got hot lugging that thing. Plane flew terribly, as prop didn't unload much in the air. I put the APC 13x6 back on, 10,800rpm, and it was happier. No way I am going to try that huge 14x4W APC. Will go back to try the 13x4 and be careful not to overspeed. I only use full throttle in vertical, if ever.

latitude777

Hey,

I'm running the ys .63FZS and ran it on the 13x6 prop and the 13x4 wide blade...

I cant tell you specific rpm's but i can tell you that it did fly the 13x6 well but the 13x4w is unbelievable with any 3D flying.

My 6 pound (roughly) Katana by CMPRO will hang on 2/3 throttle and pull a vertical climb up and outa there no problem at all!

GO THE YS ENGINE!!!

Oh im running on ys 20/20 fuel as well.

DarZeelon

Please look at [link=http://web.archive.org/web/20020803180433/http://www.nwmas.co.uk/engine_test_ys53.htm]this archived web page[/link]...

It is a review done in the UK for the YS.53FZ of days gone by...


The numbers there are superior to most .61 two-stroke engines.
They seem to be exaggerated. Except for Abacro's number, no one here seems to be even close.

The numbers I see where I fly (I don't personally own a YS four-stroke), don't agree with that .53FZ review, or with Abacro either.

Richard L.

My Feedback: (24)

I just carefully masked and painted the inside of the canopy. Masking the inside of the canopy will be harder than masking the outside.