Author Topic: Zenoah G-26 issues  (Read 2972 times)

jhaywood

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Zenoah G-26 issues
« on: June 27, 2012, 10:10:44 AM »
We have a Zenoah G-26 with no more than 5-6 gallons ran through it, all at 32-40:1.  The static line has been run inside the fuse, the venturi is removed, which did cure the sudden dead sticks, and the needles have been chased all over the spectrum, including a reset to 1.5 turns from seated.  The main problem is now that it will not accelerate quickly.  It takes about 3 seconds to go from idle to full throttle.  This points to lean either on the low end or possible high end or both.  Richen either one and we lose top end RPM to an obvisously rich condition.  The pulse port is clean and free, the insulator block is good with no cracks, the seals seem good on the crank etc etc.  It starts right up and will idle all day, just dont ask it to rev quick.  This is the a magneto version that is about 5 years old or so.  The plug is good, with good spark.  We are running a Bennett "muffler" and a Mezjlik 18x6 prop.  We are in the mid 8000's as far as RPM goes. 
Help!
Thanks,
Jeff

rcign

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Re: Zenoah G-26 issues
« Reply #1 on: June 27, 2012, 12:50:40 PM »
EVerything sounds good, only thing I could add would be to try a carb diaphragm kit, D10 WAT.  Sometimes the diaphragm with the metal center gets stiff and can't respond...
Stupid is a condition, Ignorance is a choice
If you can't dazzle 'em with brilliance, baffle 'em with BS

jhaywood

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Re: Zenoah G-26 issues
« Reply #2 on: June 29, 2012, 09:39:10 AM »
Forgot to mention that the carb has new gaskets and diaphragm.  All of the orifices were blown out with air to make sure trash wasn't blocking something.  The screen was cleaned as well.  This condition makes it a real pain to taxi and adjsuting throttle on final sucks!!