Hey Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
poolboy
Yoda
Offline
I know of a few people who have fairly recently replaced their ZS B1AF needles and had a problem getting their carbs adjusted properly.
2 of the people that come to mind had their metering needle in the highest position possible and still not satisfied.
Well, one of the fellows sent me his carbs to check his rebuild after he spent 2 frustrating weeks trying to go over everything he had done in an attempt to get the engine to idle without having to use the choke, no matter the temperature.
I checked everything, possibly for the 4th or 5th time and was ready to send them back to him with the throttle disc cracked open far more than normal just to maintain an idle.
Above 12-1300 rpm things seemed ok, I just couldn't get it to idle unless the needle was all the way up and the throttle disc cracked or the choke engaged
After a break in the action, it dawned on me to mic his new needles.
As most of you know the jet has an opening of .100 and the Base of the B1AF is supposed to be .0951. This was the measurement of his brand new fat needles .0955 and an astonishing .0975.
Not much room there for fuel to pass.
So if you're having a similar problem with a recent rebuild or even just a needle replacement, be warned, there's junk out there.
I replaced the fat needles with the old needles, which he sent me, and things now are copacetic.
2 of the people that come to mind had their metering needle in the highest position possible and still not satisfied.
Well, one of the fellows sent me his carbs to check his rebuild after he spent 2 frustrating weeks trying to go over everything he had done in an attempt to get the engine to idle without having to use the choke, no matter the temperature.
I checked everything, possibly for the 4th or 5th time and was ready to send them back to him with the throttle disc cracked open far more than normal just to maintain an idle.
Above 12-1300 rpm things seemed ok, I just couldn't get it to idle unless the needle was all the way up and the throttle disc cracked or the choke engaged
After a break in the action, it dawned on me to mic his new needles.
As most of you know the jet has an opening of .100 and the Base of the B1AF is supposed to be .0951. This was the measurement of his brand new fat needles .0955 and an astonishing .0975.
Not much room there for fuel to pass.
So if you're having a similar problem with a recent rebuild or even just a needle replacement, be warned, there's junk out there.
I replaced the fat needles with the old needles, which he sent me, and things now are copacetic.
