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HelicopterEngines Plugs Mufflers Fuel › OS91 SZH PS & Cline
09-11-2007 08:03 AM  10 years agoPost 1
Bellypopper

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Portsmouth UK

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Hi All

I have an OS91SZH pumped in my Synergy, which I have had trouble getting tuned correctly (keeps stalling when throttling up between quarter and half stick).

I have picked up a used Cline carb for the SZH, and wanted to know the best way to plumb this carb into my existing setup. I assume I would remove the stock carb and pump from the SZ, and replace with the Cline and then run crankcase pressure to the tank??? Would i need a check valve for this setup? Is this the correct way to do it?

Thanks
russ

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09-11-2007 09:20 AM  10 years agoPost 2
daren

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Hampshire Sponsored by Quick UK

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check valve goes between backplate and tank, mines 20mm from the backplate, Just plumb it like a ys

Daren
Using the ground to reverse engineer

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09-11-2007 09:22 AM  10 years agoPost 3
Bellypopper

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Portsmouth UK

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Thanks Mate, not sure the carb comes with a check valve. I wonder where the best place to get one in the UK?

Cheers
Russ

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09-11-2007 10:17 AM  10 years agoPost 4
daren

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Speak to Bob at skyline unless he's out playing

Daren
Using the ground to reverse engineer

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09-12-2007 08:14 PM  10 years agoPost 5
Bellypopper

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Portsmouth UK

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Thanks Daren,

Was the 20mm distance from the backplate based on anything or was it a 'wet finger in the air'?

Any idea what needle setting I should start with?

Cheers
Russ

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