Walbro Metering Lever Gauge - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 10-17-2020, 11:26 AM   #11
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Re: Walbro Metering Lever Gauge

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The setting is different on many carbs , you can buy the proper gauge quite inexpensively.

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Old 10-17-2020, 03:47 PM   #12
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Re: Walbro Metering Lever Gauge

Originally Posted by chevelledude13 View Post
Now I have a HSN question. I lean the HSN to reach max rpm which is 6000 rpm. Then when I keep turning the needle it stays at the same max rpm of 6000 for at least half a turn. After that it finally drops off too lean. Is the correct setting when I first reach max rpm, just before it drops off too lean, or somewhere in between?
Truthfully I would never go leaner than max rpm and personally I would back it off an 1/8 of a turn from max - ie richen it up by an 1/8. Better to be very slightly rich than too lean. If you fly straight up and the motor sags at all I would richen it up a tiny bit.

Engines often change in the air also. So you need to fly it and try it but avoid overheating the engine by running it too lean
Bill Teeter
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