106 metering jet question

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I just put my 932's back on the bike.
They were out for a resleeve at Lunds.
I'm putting the 106 needle jet into the slide but first I decide to wipe it off.
I feel a little ever so slight imperfection w/ my finger nail barely perceiveable.
It is not noticeable to the eye.
The jets and needles were replaced 1850 miles ago.
They came from Old Britts so I'm confident they are quality.
My thoughts and question is are they in need of replacement this early on?
I was thinking the slide rattle may have increased the wear factor?
The slides were scored and loose but not terribly bad.
If they are not serviceable I will replace while I'm in there.
Also looking for some feed back on the new stay up floats out by Amal I'm looking at
replacing the original floats w/ a set of them.
Thanks,
Marshal
 
Who knows on needles until you test them. The flaw may turn out to be in favor of the mixture your bike likes, but more likey storage damage that will interfere with mixture some where, maybe detectable, maybe not. Trick tuners will sand their own profile on needles, may be you chance to teach us new tricks.
 
Needle are fairly cheep. With a fresh resleeving, don't short cut yourself. Give yourself every oportunity to start pure and a solid basis for tuning. Isn't that why you stay with Amals in the first place?
The great thing about the StayUp floats is the they are adjusted by the aluminum tang and not by heating up the bowl and moving the needle seat up and down. Just like real "carburetters".
 
New needles and needle jets every 5k miles for me. This is every 4-5 years in my case. I haven't ridden as much as I used to but also my riding is spread across 4 bikes - the Norton and 3 Matchless singles, usually the Norton and a different Matchless every summer. The Norton is my modern bike.

Russ
 
I've got close to 10K miles on my needles, but that's over a little under two years. I haven't noticed any degradation in the carb operation - still idles fine, no flat spots in acceleration, good mileage (50+).

I went ahead and changed the needles and mains on the Ranger, though, but they were all wrong - 107 needles, 250 mains, even the jet holder was wrong. Seems the early concentrics were set up for 2-stroke motors. Now the Ranger is set with 106 needles, 220 mains, #3 cutout slide, 4-stroke jet holder. I won't know how it works 'til sometime in December, the way things are going.
 
Thanks everyone for your responses.
I think I'll get a set w/ the stay up floats.
After all the refurbishing why have to go back and sort through a possible richness issue.
And then again like stated maybe a tuning trick in the making :roll:
Marshal
 
new needles and needle jets is a good place to start, however these items wear out, and will manifest there wear as rich running at light throttle settings.

Cheers Rich
 
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