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Weedeater 25

Old 11-17-2003, 06:43 PM
  #1  
Riterudder
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Default Weedeater 25

Anyone done a weedeater 25.And if so who has parts for the conversion?
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Old 11-18-2003, 04:44 AM
  #2  
AutoMike
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Default RE: Weedeater 25

www.wackerengines.com got all you need. You'll need to call, info on site. He list only homie and ryobi parts online.
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Old 11-18-2003, 09:33 AM
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Default RE: Weedeater 25

I agree with Mr. Pipercub. Peter at www.wackerengine.com is a great guy to work with. If you have any questions you can call him or just send him an e-mail. He reponds quickly to his e-mail questions. His prices are very good and his parts are of high quality.

Thanks
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Old 11-18-2003, 06:16 PM
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Default RE: Weedeater 25

I have nearly completed the WE 25cc, just waiting for Peter to send the prop hub, mount plate, and a new carb. If you are going to get your Walbro from him hurry, he's almost out. Very,Very easy to deal with, nice guy. This engine is at 2.9 lbs so far. This is my first leap into gassers. Still trying to figure out what to put it in though. Suggestions guys, would be appreciated.
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Old 11-19-2003, 12:13 AM
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Default RE: Weedeater 25

Thanks for the info teufelhund when you get it done,can you put some picks on.I don't see alot of the weedeaters on here.THANKS
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Old 11-19-2003, 12:25 AM
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Default RE: Weedeater 25

Check out www.gcbmrc.com . Costs a little more, but the parts are A#1.
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Old 11-19-2003, 05:12 AM
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Default RE: Weedeater 25

teufelhund , Build something lite to try it on first. jstanton is building a Balsa USA Stingray 120. I flew one years ago with a 16cc Maloney 100 gasser and it flew ok, most likely be a good flyer with your engine. Piper
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Old 11-19-2003, 10:07 PM
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Default RE: Weedeater 25

Hey Riterudder, here is what I have done so far.Thanks for the info Mr. Cub, I was leaning toward the stingray or the 4*.
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Old 11-20-2003, 10:27 AM
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Default RE: Weedeater 25

I have done this conversion recently. How did you get the starter pins, springs, and tabs out of the flywheel? I was afraid I might crack the flywheel if I forced them to much.
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Old 11-20-2003, 10:45 AM
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Default RE: Weedeater 25

Teufelhund

Here are a few pic's of how my Ryobi conversion fit into the stingray 120 I am building. I hope it gives you the information you need to decide on weather your weedeater 25 will work.. I had to move the firewall back 3" for the Ryobi, but you my not have to move it back as fare using a weedeater 25. The carb being on the side of the engine my present a little problem though with the cheeks of the fuselage. Hope this helps.

Thanks
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Old 11-20-2003, 04:00 PM
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Default RE: Weedeater 25

heliair, drill from the back side and punch them out. Piper
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Old 11-20-2003, 05:51 PM
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Default RE: Weedeater 25

Heliair, I took a 1/8 punch and put the flywheel on two blocks of wood then carefully tapped the pins a couple of times. Believe it or not the friction fit was not that tight. I think I tapped them both twice before they fell out. Just don't let the punch come in contact with the flywheel itself. Good luck!

PS
It works better if you use a spring loaded punch to make an indention in the pins first, so that the 1/8" punch doesn't slip.
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Old 11-20-2003, 06:02 PM
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Default RE: Weedeater 25

Jstanton, thanks for the pics and keep 'em coming. I think I will get the stingray. I'm also thinking some sort of canopy and a cowl. Don't get me wrong it is a good looking plane without these, its just in my nature to do a little extra I guess. I've got a Pete n Poke 40 that I am trying to post pics of in another forum with a TCraft cowl on the front instead of the motor hanging off the front end. I also built some stronger LG for it. Sorry to get off the thread guys.
Ben
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Old 11-24-2003, 04:47 PM
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Default RE: Weedeater 25

I converted a 25WE to CH ignition and installed my own velocity stack and done away with the muffler and put on a home made expansion chamber. I'm getting 8000rpm with a 14x6 and 6600 with a 16x8. Will this engine have enough power to fly a Dynaflite Super Decathalon .
Four years of fuel flying, but new on gas.
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Old 11-25-2003, 05:27 AM
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Default RE: Weedeater 25

bb, yes that would fly it but just. You didnt say if you had the stock carb on it and got those readings. If it were my engine I'd like to see at least mid 7k's on a 16-8. My homelite 25cc turns a APC 16-8 wide blade at 8300rpm with Pete's carb and no other mods other than a gutted out muffler.Get a large bore carb from Pete at wacker engines and you'll really get that motor to make some power. Piper
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Old 11-25-2003, 10:25 AM
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Default RE: Weedeater 25

Piper,
That is the stock carb. There is a noticable difference between the 18cc, 21cc and the 25cc engines.
The 25 has a beefed up crankcase, differant carb and carb block. The compression seems to be higher too. I didn't tweek the carb any on the initial test run and I was using regular gas. Perhaps there may be an increase if I use HI Octane gas?? What are your thoughts?
BB
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Old 11-25-2003, 02:53 PM
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Default RE: Weedeater 25

bb, Your best bet on making that motor hum is to get a big bore carb. Trust me when I say that the one that came with it isn't one. You dont need to spend a lot on a carb. The one Pete sells is $18 with shipping! Cheap price for 2000rpm isn't it? High octain gas or low grade wont make any difference in the motor. How fresh the fuel is might. I've bought some gas around here that was just awful smelling because of age. Piper
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Old 11-25-2003, 07:39 PM
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Default reply to teufelhund

Teufelhund: One problem you'll face with the Featherlite 25 is that a bigger bore carb offers only a limited improvement due to the highly restrictive exhaust ports. See my post here discussing the ports:

http://www.rcuniverse.com/forum/m_67.../tm.htm#675294
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Old 11-28-2003, 04:41 PM
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Default RE: reply to teufelhund

Hey guys, Ive just finished running my weedeater 25 the only mod's I've made where changing the carb for one that came off from a ryobi 31
which is the WT275 and bored the venturi to about 0.400 in, also I drilled the muffler all the way through with a3/8 in drill bit to give it more freedom of exaust, the reading that I got on my tachometer was 8200 rpms with a 15x8 master airscrew prop. I think it is proper to mention that the engine is completely new, it is the 25 cc high output kind, I tink this engine will work real fine on a 75 to 80 inch wingspan plane I will keep on working with it.
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Old 11-29-2003, 12:22 AM
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Default RE: reply to teufelhund

Volture,
What were the results from your mods? The WeedWacker FeatherLite Blower is on sale at Wally World for $69. I think it's the 25cc, but it didn't say on the box.
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Old 11-29-2003, 07:42 AM
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Default RE: reply to teufelhund

rsieminski The one at my wally world is a 16cc, the box did not say but found it on the display. Gary
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Old 11-29-2003, 12:44 PM
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Default RE: reply to teufelhund

Wow! I don't think the 16cc would be worth it pwr/wt wise. They have the weed wacker, and that says 23cc, for the same price. Is the 23cc worth converting? Are these ECHO engines?
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Old 11-29-2003, 01:27 PM
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Default RE: reply to teufelhund

The engines I mfg. put out 9,400 rpm on a 15X8, so either the engine is not broken in well, or it's still not breathing and exhaling well enough. Big Bore carb and a free exhaust muffler would help.
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Old 11-29-2003, 07:45 PM
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Default RE: reply to teufelhund

Look into the WEEDEATER 25cc. SEARS has them in our locale at $69.00
If you go with electronic ignition, you can get the weight down to around 36 oz.
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Old 11-30-2003, 04:51 PM
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Default RE: reply to teufelhund

Here is the WE 25cc mounted on a Balsa USA Stingray 120. I mounted the engine inverted at a 45 degree angle, this alows easy installation and positioning of the fuel lines and throttle linkage. It has a home made exhaust stack and back plate and a Baldridge carb mount. It uses a CH electronic ignition.
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