30.5 Carb settings

[Pollishman]

What are the Carb settings for the 30.5?

 

[chitown joe]

IF I remember it's H=1-1/4 L=1-3/8 turns from closed, and the idle screw set at 1mm open

i just go 1-1/4 accross the board and adjust from there,but thats what works for me

 

[Johnston.jer]

I don't know if anyone had mentioned yet, but check out oneil brothers racing website And check out their break in and tuning instuctions.

 

[Brandohim71]

Carb settings

IF I remember it's H=1-1/4 L=1-3/8 turns from closed, and the idle screw set at 1mm open

i just go 1-1/4 accross the board and adjust from there,but thats what works for me

I have a 30.5 I used the settings and flooded bad. Dripping air filter and all. Maybe I have a bad carb. It's 5 days old.

 

[chitown joe]

standard zenoah carb settings,
could be just that the clone carb is not machined with the tolerances of the walbro,
those are basic starting point settings,it's up to the user to be able to determine how much to adjust,if these settings made your carb flood you should of leaned it up and been able to set the starting point of the carb for referrence.

6) CARBURETOR ADJUSTMENT​

The carburetor comes with a standard setting, it is for
optimum performance under the barometric pressure and
climatic conditions at factory, so it may be re-adjusted
according to load applied.​

Idle rpm : 4000 ± 300 rpm (STD Spring)
H needle : 1 1/8 ± 1/4​

L needle : 1 1/4 ± 1/4

http://www.zenoah.net/ddoc/ZENO/ZENO2012_AAen/ZENO2012_AAen_G240RC,G270RC,G290RC_.pdf
http://www.zenoah.net/ddoc/ZENO/ZENO2009_AAen/ZENO2009_AAen_G230RC,G260RC_.pdf

 

[Brandohim71]

Thanks for settings

Thanks for the settings and fast reply. You guys on this post rule!!! THANKS AGAIN!!!

 

[Brandohim71]

Other carb

standard zenoah carb settings,
could be just that the clone carb is not machined with the tolerances of the walbro,
those are basic starting point settings,it's up to the user to be able to determine how much to adjust,if these settings made your carb flood you should of leaned it up and been able to set the starting point of the carb for referrence.

6) CARBURETOR ADJUSTMENT​

The carburetor comes with a standard setting, it is for
optimum performance under the barometric pressure and
climatic conditions at factory, so it may be re-adjusted
according to load applied.​

Idle rpm : 4000 ± 300 rpm (STD Spring)
H needle : 1 1/8 ± 1/4​

L needle : 1 1/4 ± 1/4

http://www.zenoah.net/ddoc/ZENO/ZENO2012_AAen/ZENO2012_AAen_G240RC,G270RC,G290RC_.pdf
http://www.zenoah.net/ddoc/ZENO/ZENO2009_AAen/ZENO2009_AAen_G230RC,G260RC_.pdf

Do you think I should buy a walboro carb? Is it less finicky and better quality for a longer life?

 

[chitown joe]

all depends, some times walbros have different settings also,
getting a better carb then a clone is always a plus, if you can get one say 668/813/990 either one should be a better outcome then a clone