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Manual In-cockpit Mixture Control for 2-stroke Engines

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jratcli256(at)AOL.COM
Guest

Posted: Mon Apr 17, 2006 11:18 am Post subject: Manual In-cockpit Mixture Control for 2-stroke Engines

Am moving along with my Mark 3X and need to start thinking of what Engine to purchase.

 

Was looking at the Rotax 582, but having to change jetting, limits the range of altitudes I will be able to fly at.

 

In a web search looking for information on alt. compensating carbs, I came across the Green Sky Adventures site about the HACman Mixture Control.

 

Looks interesting - has anyone any experience with this setup or heard about it?

 

If interested check it out at http://www.greenskyadventures.com/HACmanFAQ.htm

 

John Ratcliffe

jratcli256(at)aol.com

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Frcole(at)aol.com
Guest

Posted: Mon Apr 17, 2006 4:45 pm Post subject: Manual In-cockpit Mixture Control for 2-stroke Engines

I have used a pair of HAC compensating carbs on a 503 for about 12 years.  

Technically you should adjust them once a year with a little divining rod  that 

comes with them and a known air pressure preferably in millibars. I have  

become lazy recently and have not done the adjustment for 3 years or so. They  

function well, I have been able to fly to 12K + and not have seasonal problems.  

Considering how easy it is to swap a main jet (and if you are going for 

altitude  you will be wide open) its a working but not  an economical  solution.

Dick C

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Steve Boetto

Joined: 11 Jan 2006
Posts: 365

Posted: Mon Apr 17, 2006 6:06 pm Post subject: Manual In-cockpit Mixture Control for 2-stroke Engines

In a message dated 4/17/2006 3:19:54 P.M. Eastern Standard Time,  

jratcli256(at)AOL.COM writes:



In a web  search looking for information on alt. compensating carbs, I came 

across the  Green Sky Adventures site about the HACman Mixture Control.



Looks  interesting - has anyone any experience with this setup or heard about 

 it?





A system was donated to Kolb as a door prize at last years homecoming. The  

winner swapped it to Bryan Melborn.  Bryan offered it for sale with  proceeds 

to go to Norm Labhardt's Children's Fund.  Try him at 606 682  0645.

 

steve

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Tue Apr 18, 2006 4:39 am Post subject: Manual In-cockpit Mixture Control for 2-stroke Engines

I once owned a Zenith CH 701 with a 582 and the HAC kit on the carbs. 

Worked great. I reset the baseline in the early summer and then again 

in the fall after the first frost and that was all there was to it. 

EGTs stayed good at all altitudes and plugs stayed gray-brown.



Thom in Buffalo

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_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
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