HarryJ

My Feedback: (98)

Does anyone have any experience with YW engines? They make a YW-24 and a YW-48 twin. A company in Florida is the US distributor, Genesis I think. Not much info on their site and no one around here ever heard of them. Not a bad looking engine, but inside a cowl at 100' in the air looks don't count any more. [&o]






Harry

TommyWatson

My Feedback: (1)

I have two YW 48 twins. One is in a World Models Extra and the other in a GP Christen Eagle. Both engines tun very well. The only problem is the mufflers can distort if tightened too much and come loose. There is a fix which involves gluing the muffers on wi5th JB weld.
Overall good engine. They start easilly and have good power. My Extra has good vertical performance and is very smooth (very little vibration).

Regards

Hans Meij

According to the German distributer there is an new version that has a 10% performance increase:
http://www.pichler.de/TWM/german%20m...motor_b48.html

US distibuter:
http://www.ywengines.com/

Manufacturer:
http://www.ywengine.com/

tande

My Feedback: (48)

I also have two of their 48cc twins---no reliabilty problems so far---4.0# including mufflers & ignition module---I have no muffler issues & so have a different take than Tommy---

HarryJ

My Feedback: (98)

Thanks guys, looks like I'm going to try the 48 twin. It will fit inside my cowl without any cutting and should do the job. I have the 32.5% Hostetler Piper Vagabond and trying to keep it scale.




Harry

TommyWatson

My Feedback: (1)

perhaps they have fixed the problem.

regards

Philip Praetor

Hi, i just got my YW48 3 weeks ago from Germany, it is a very nice engine and it runs very well an smooth, i put it on GP Pitts and i will buy a 2nd one for a GP extra Patty. The engine is very light and hand starts very well.

enjoy your flights, Philip

TommyWatson

My Feedback: (1)

I have just fitted two new mufflers to my YW 48 twin. It seems YW have addresed the muffler distortion problem. The tubes that the muffler screws go through are much thicker. You can really lean on the allen key and the muffler will not distort. I have had several flights and the mufflers are as tight as can be.

Regards

airbornrc

My Feedback: (9)

What props are you turning on the 48? And at what rpm?

Mark

prince 123

hi every one. can anyone give me any info on the yw 48 cc twin?? like wots the best oil to use to run in? and wots the best props for this motor? thanks Doug.

TommyWatson

My Feedback: (1)

G'Day Marc,

20x8 at 7200-7500

TommyWatson

My Feedback: (1)

G'Day Doug,

I have only ever used a good two stroke Motor cycle racing oil at 50:1.

I have two YW 48 twins and have had lots of flying on them. I sold one of the models (GP Christian Eagle) and the engine went with it.

The other I hav in a World models Extra 300 (80" ). It flies really well, Not unlimited vertical but enough for me. It starts easily and runs very smooth.

The original mufflers had a problem in that they would distort when you tightened the mounting screws and then the mufflers would come loose. I tried everything to keep the mufflers tight. Then I got a new set of mufflers and these had much thicker tubes that the screws went through. It seems to have fixed the problem.
I would highly recommend the YW 48 twin.

Regards

Collinba

I use a Mejzluk 22x8 on my GP Christen Eagle and standard good quality 2 cycle oil at 40:1.

The engine fits perfectly in the cowl and gives excellent performance with the Mejzluk. It's a very smooth running engine.

Barry

prince 123

i ve now run my 48cc twin, its very smooth. and im very pleased with it !! its a pitty that YW dont sell the motors! but you can get spare parts at Pichler in Germany!! regards Doug Evans