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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › os 91 szh ps , plumbing and too hot
09-10-2006 08:12 PM  14 years ago
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ady

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norfolk england

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os 91 szh ps , plumbing and too hot
i`ve just fitted this engine onto my rappy 90 , the gearing is 8.27, the fuel is century heli juice 20% , i plumbed it in as normal to run in but had to have it so rich it would splutter so much it would hardley spool up , once it was there it would hover ok , but would get very very hot , i can`t richen it up anymore cos the engine cuts ,today i changed the pipe work to the vented diagram , i`ve also tried screwing the mid jet all the way in but still it run`s so , so hot , what am i missing , i want to switch on my govenuer and enjoy it but dare not incase it blows , any ideas please
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09-10-2006 09:07 PM  14 years ago
Droid

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Deep down in the Southwest- UK

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Are you sure your fan is not slipping??

What Pipe are you running?

Are you using large bore fuel pipe?

What are your current Needle settings?
Quotes may have been changed for my own amusement
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09-10-2006 09:15 PM  14 years ago
ady

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norfolk england

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using the standard TT pipe , large bore fuel pipe , i had a c-spec before and that was ok , current needle settings are , low 1/2 way , factory set , mid 1/4 out and top is now 1 and a half out
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09-11-2006 12:44 AM  14 years ago
Droid

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Deep down in the Southwest- UK

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There is a large thread on this about half way down the page! Author is burnt offering. Most of the guys using the PS are down to less than 1 turn, some as low as 1/4 on the main. Mid needle closed till broken in then slowly opened out!

Have a read and pick out the bits you think are true!!!
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09-19-2006 01:01 AM  14 years ago
I3DM

rrProfessor

Israel

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try different fuel too.www.liorzahavi.com
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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › os 91 szh ps , plumbing and too hot
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