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Old Sep 29, 2012, 04:43 PM
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Mtn Home, Idaho
Joined Feb 2010
443 Posts
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looking to save a few bucks and get the asp91

ill be building a sport plane in the next month or so as funds permit. i just about hit the buy button on a asp91 from hk. it cost 130 after shipping. i stopped myself and decided i better think what you guys think of it first.

i know i have read alot of good reviews on it but that may not be the full picture.

thanks aton for any advice
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Old Sep 29, 2012, 04:48 PM
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pathfinder's Avatar
walterboro s.c.u.s.a
Joined Jun 2004
753 Posts
For the money it's one of the best out there.It's the same as the Magnum line of engines.Make sure you oil it up good before breaking it in.You can remove the backplate and oil up the con-rod.And you can take the valve cover off and oil up the push-rods.When breaking it in, don't run it wide open at first.Let it run about 1/4 throttle.Then graually go to wide open,after a tank or two.I run at least 4 tanks through mine during break-in.
Buy it without hesitation.Take care of it,run the right fuel,it should last.
What are you going to mount her on?
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Last edited by pathfinder; Sep 29, 2012 at 04:55 PM.
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Old Sep 29, 2012, 04:54 PM
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Birmingham, UK
Joined Apr 2007
494 Posts
4Stroke? I've got one in a WM Super Chipmunk. Easy starter, plenty of power and smooth transition from tickover to full throttle. I've also got an older Magnum branded one in an Extra, again it runs a treat.
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Old Sep 29, 2012, 06:00 PM
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United States, IA, Muscatine
Joined Oct 2009
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In my experience it is best to buy ASP/Magnum engines from somewhere you can get a warranty, I have had to use the warranty service for my Magnums several times.
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Old Sep 29, 2012, 06:02 PM
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Mtn Home, Idaho
Joined Feb 2010
443 Posts
Sorry guys. Yeah I'm after the 2stroke.
Thanks for the replies so far. Glad to see asp seems to have a good reputation
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Old Sep 29, 2012, 09:43 PM
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Canada, ON, Cottam
Joined Jan 2012
1,338 Posts
Hobbypartz has them listed for $88 with free shipping, but surprise is out of stock. A guy in the club is happy with his which was on sale for $77 from there.
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Old Sep 29, 2012, 10:05 PM
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Sydney Australia
Joined Mar 2005
898 Posts
I can't speak for the 91 but I have a Magnum 108 which has exceeded my (very low) expectations.

I bought it out of the bargain bin at the local model shop, it was returned under warranty with 'noisy bearings'. It's still running those bearings & the two problems I've had have been fiddly low speed needle adjustment & the exhaust flange was not flat so it leaked like a sieve until I sanded it flat with some fine emery cloth on glass.

It's inverted, cowled & running a custom exhaust so it leads a hard life in a Top Flite P-47 but has been a great engine so far. It's about 14 years old. - John.
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Old Sep 30, 2012, 09:43 AM
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Mtn Home, Idaho
Joined Feb 2010
443 Posts
Yesterday hobbypartz had it listed for 130 with free shipping.
Hobbyking had it listed for 89 and about 30 bucks shipping.

Boomerang that's an awesome bird thanks for the info on your motor
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Old Oct 07, 2012, 06:47 PM
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United States, NY, Spencerport
Joined Aug 2011
481 Posts
If you are interested I have 2 of them for sale, both low run time ASP 91 2-strokes. One is the red head version. I can give you an engine mount and a Pitts-style muffler also. $70 shipped Priority for either one. Let me know and I'll post some pictures, Shoo
Here's one of them:
http://www.rcgroups.com/forums/showthread.php?t=1734387
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Last edited by shooboy; Oct 07, 2012 at 06:52 PM.
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Old Oct 07, 2012, 11:20 PM
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United States, CO, Dacono
Joined Nov 2010
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You can't go wrong buying from Shoo!
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Old Oct 09, 2012, 08:31 AM
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United States, TX, Weatherford
Joined Dec 2006
1,647 Posts
Roger that, I bought an .91 four stroke from Shooboy that has been great.
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