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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › OS.91HZR speed carb on a Align .91H motor?
07-26-2012 02:26 PM  8 years ago
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weaselbean

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Joplin,Mo 64801

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OS.91HZR speed carb on a Align .91H motor?
Hey, I was wanting to know? I'm using my OS.91HZR 3-d Speed motor till this end of the flying season. I bought me a Align .91H motor for next to nothing I'm going to rebuild it soon but it has a standard 3 needle carb on it. I was wondering if once I'm ready to rebuild my Speed motor if the Os.91HZR Speed carb will work on the Align .91h motor? I don't see why it wouldn't I mean the Align is bacicly the OS.91HZ right? Does any one know if this can work and work good?
Quit crying about your airplane and fly already!!!
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07-26-2012 02:59 PM  8 years ago
jgalen0025

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royersford, pa- US

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i have done it sucessfully but your needle settings will be a little leaner bc of the increased fuel flow.
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07-26-2012 03:29 PM  8 years ago
weaselbean

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Joplin,Mo 64801

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Swee, good news so do you think the 2mm shim or the skinnier one that I think it has in it? I run Cool Power 30% nitro Also do you know if the HZR and the 3-D Speed carbs are the same? I have wonder this for quite some time now? I don't think they are from what I have read on here alot of people say the Speed carb is a POS? Any one want to chim in on this?Quit crying about your airplane and fly already!!!
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07-26-2012 03:58 PM  8 years ago
unclejane

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santa fe, NM, USA

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They're not the same carb. The speed carb has two versions (for the "3d" black head and the "FAI" red head) with larger venturis and certainly different internal parts from the regular HZ-R version.

One of those carbs is also used on the OS 105, but I don't know which one - mine has "3G" on it IIRC.

The HZ-R carb is a fine one also. So whichever one will fit will probably work fine...

LS
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07-27-2012 01:32 AM  8 years ago
marc8090

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Long Island, N.Y.

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I have heard mixed things about the speed carbs. The regular HZ-R carb works just fine.
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07-27-2012 06:02 AM  8 years ago
weaselbean

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Joplin,Mo 64801

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My OS.91HZR Speed carb says 61g on it is that good? LOL That would be awesome if it was the same one on the OS105 I'm thinking about getting that one if so I could save some $ if I already got the regulated carb that would be nice! If any one out there know witch HZR carb is on the OS 105 please let me know or any other info would be great to like and one mixing OS.91 parts to mod their engine in any way?Quit crying about your airplane and fly already!!!
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07-27-2012 05:53 PM  8 years ago
jgalen0025

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royersford, pa- US

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The Hzr speed carb is in fact the same as the 105
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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › OS.91HZR speed carb on a Align .91H motor?
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