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| | | | Joined: Oct 2004 Posts: 175 Member | | Member Joined: Oct 2004 Posts: 175 | This is another chapter in the on going saga of my obsession with Carburetors!
I have a Rochester 4GC off an old 283 that looks like a perfectly good carb, my dad was partial to them, CarbKing says they are good, and I'm thinking about trying it on my 250. So, here's my question; with it just sitting on the bench, even though it is fairly cold out, the choke is wide open and does not close unless I physically take hold of it and close it. As soon as I let go it opens back up. Shouldn't it be closed until warmed by hot air? I am wondering what's up with this?
Boo
We don't need no stinking V-8s!!
| | | | | Joined: Nov 2002 Posts: 2,765 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,765 | Readjust the choke as follows. With the ambient temperature at 68 degrees F. (65~70 is close enough); depress the throttle to wide open and release (this releases the choke lockout); with one hand hold the throttle about half open; with the other hand slowly rotate the choke cap until the choke butterfly starts to close, and continue to rotate until the choke butterfly just touches closed; release the throttle, and tighten the choke cap retainer screws. This procedure will adjust the choke to standard setting.
It is possible that depressing the throttle to wide open will close the choke valve.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: Oct 2004 Posts: 175 Member | | Member Joined: Oct 2004 Posts: 175 | Thanks Jon, I'll try that tomorrow!
Boo
We don't need no stinking V-8s!!
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