Anyone know the difference Honda ghx50 and gxh50qxa

Discussion in '4 Stroke Bicycle Engines & Kits' started by birdmannn101, Jan 8, 2012.

  1. birdmannn101

    birdmannn101 New Member

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    Can't find anything showing the difference between these two Honda 49cc engines but lots of threads for one or the other. Just want to make sure that I get the right Honda 4 stroke engine for my spring build....Dan
     
  2. The_Aleman

    The_Aleman New Member

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    I forgot where I read this, but the "QHA" means the engine has a low oil sensor and you get to pay for it whether you want it or not!
    GXH50s have had this for almost 3 years now. Any GXH50 should work for your build.
     
  3. Al.Fisherman

    Al.Fisherman New Member

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    #3 Al.Fisherman, Jan 9, 2012
    Last edited: Jan 9, 2012
  4. The_Aleman

    The_Aleman New Member

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    No, Ron. Not every GXH50 has a low oil shutdown, they started that a couple years ago. Your links have no relevant information for the OP's question.
     
    #4 The_Aleman, Jan 9, 2012
    Last edited: Jan 9, 2012
  5. MotorBicycleRacing

    MotorBicycleRacing Active Member

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    This is the right Honda 50 to buy cause it's the best deal! :D

    If you can find a better deal please let us know. All other sellers
    want a lot more for the Honda 50. The motors are all the same specs
    internally.
    Small Engine Warehouse: GXH50QXA - Honda Engine 2.5hp Horizontal 5/8"x1-5/8" Keyed Shaft, Overhead valve LOS 7000 RPM

    I think the different letter codes refer to whether the motor
    comes with a fuel tank or exhaust, but no one seems to be
    selling the bare engine anymore.

    Low oil sensors are easily disconnected.
     
  6. Al.Fisherman

    Al.Fisherman New Member

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    Yes, that may be so (no oil shutdown) years ago, but he is looking to buy one now, not a engine a couple of years old, at least he didn't mention buying a used engine.

    Latest information I can find...http://engines.honda.com/models/model-detail/gxh50
    Oil Alert
    GX series, V-twin series, iGX series
    Honda’s Oil Alert system helps to prevent engine seizure due to a low oil condition.
    The system consists of an oil level sensor inside the crankcase. When the oil reaches a level that is too low for safe operation, the engine warns you or stops automatically.
     
    #6 Al.Fisherman, Jan 9, 2012
    Last edited: Jan 9, 2012
  7. The_Aleman

    The_Aleman New Member

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    Let's settle this right now: GXH50 all work the same, some just come with more or less equipment on them.
    The last 3 letters in the model are variants. Last 3 letters may or may not be listed. This answers OP's question.

    The low oil sensor used to be an option, but about 3 years ago it became standard and the engine price went up.
    The days of $200 new GXH50s are long gone :(
     
  8. birdmannn101

    birdmannn101 New Member

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    Thanks for all the input. So, this answered my question. The QXA has a little more HP than the old 50 and is .9 inches higher which should work on a cruiser frame. Planning to use the Q-matic or 4GT with $20 upgrades. Going to try the carb on the engine with the throttle kit first.

    Thanks again for all your help....Dan
     
  9. bandito

    bandito New Member

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    The differences are in shaft sizes. Length, od, for various apps.
     
  10. bandito

    bandito New Member

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    Some have 3/4 shafts, tapered, 5/8ths etc. the letters after the gxh 50 tell you exactly what it is.
     
  11. birdmannn101

    birdmannn101 New Member

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    Thanks for all the input. I am starting to believe that the Grubee 2011 SkyHawk 4G T-Belt Drive 49cc Motor Kit-V mount might be a better idea because:
    • The HuaSheng 4-Cycle 49cc Motor and the Honda engine are identical engines (according to someone who builds these for a living).
    • Don't have to buy the HuaSheng carb.
    • Comes with the T belt drive (recommended).
    • Now has the new and improved one-way bearing.
    • Pull start and CCW centrifugal clutch
    • Belt Drive Transmission Engine.
    • 3 pieces wide pedal crank fits big or small hole.
    • $349 with no tax and free shipping.

    Again, Thanks for all the input....Dan
     
  12. captzuzu

    captzuzu New Member

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    I think I found what i was looking for

    Sorry birdmannn101 im not trying to high jack your post but your swinging towards the HuaSheng and so am I .
     
    #12 captzuzu, Feb 8, 2013
    Last edited: Feb 8, 2013
  13. JackieG

    JackieG New Member

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    The qxa has a shaft.
    The other has a 76 km clutch like the gx 35.duh.
     
  14. scratchbuilder

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    If you have your answer, disregard...i have a hs142 and the cdi went out. I ordered one from gas bike and it would not rev like it did. I notice that that one that came with the engine was a sq. coil w/ plug wire to inside corner. The one I got from gas bike is has a round body w/ plug wire on the outside corner. So the difference turns out to be the round body cdi is rev limited. I was fortunate to get a sq body cdi from KC. So maybe the difference is one model is rev limited. Check stats for rpm if both claim 7000.. again disregard..
     

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