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Author Topic: OK...pilot screw adjustments....  (Read 1427 times)
John Schmidt
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*****
Posts: 15204


a/k/a Stuffy. '99 I/S Valk Roadsmith Trike

De Pere, WI (Green Bay)


« on: May 21, 2020, 07:57:41 PM »

Out it leaner, in (fewer turns out) means richer. Correct? Got my carbs done and assembled, just have to pull the set out of my bike and install these then give my old set to da prez who loaned me the set needing rebuild. Let me ride while doing the deed, now the bike will only be down a few hours rather than days....I didn't work on the rebuild very steady so took longer. I have the pilots set at two turns out but the Honda manual says 2 1/4 turns. So what's the consensus on this; 2 or 2 1/4?

Another question....anyone know what this tube is for. There's nothing attached to it but when I blow through with the air hose I hear air flow hissing from somewhere inside the carb body. I don't have my old set removed yet so don't know if it exists on them or not. Just strikes me rather odd, they're not the drain tubes, air/overflow tubes, etc., anyone know?

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98valk
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Posts: 13455


South Jersey


« Reply #1 on: May 21, 2020, 08:20:32 PM »

turning right to close is lean to zero fuel and out is richer turning to left for these carbs.

righty tighty lefty loosy
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
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Warlock
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Posts: 1280


Magnolia, Ms


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« Reply #2 on: May 21, 2020, 09:30:04 PM »

Out it leaner, in (fewer turns out) means richer. Correct? Got my carbs done and assembled, just have to pull the set out of my bike and install these then give my old set to da prez who loaned me the set needing rebuild. Let me ride while doing the deed, now the bike will only be down a few hours rather than days....I didn't work on the rebuild very steady so took longer. I have the pilots set at two turns out but the Honda manual says 2 1/4 turns. So what's the consensus on this; 2 or 2 1/4?

Another question....anyone know what this tube is for. There's nothing attached to it but when I blow through with the air hose I hear air flow hissing from somewhere inside the carb body. I don't have my old set removed yet so don't know if it exists on them or not. Just strikes me rather odd, they're not the drain tubes, air/overflow tubes, etc., anyone know?


What it looks like to me you have a set of carbs from Europe.
David
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I don't want to hear the labor pains, I just want to see the baby
sixlow
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Posts: 1794


St. Augustine, Fl.


« Reply #3 on: May 22, 2020, 03:03:37 AM »

California carbs, you'll need to cap them off, Grumpy glued rubber caps on a set I had him rebuild for me way back when.
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bikerboy1951
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Posts: 259

Grand Forks, ND


« Reply #4 on: May 22, 2020, 07:09:01 AM »

These are California carbs.  There are 6 tubes like this and one extra on the number3 carb.  All need to be capped. Alternative is to tap and install a set screw in each hole.

Brad
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John Schmidt
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Posts: 15204


a/k/a Stuffy. '99 I/S Valk Roadsmith Trike

De Pere, WI (Green Bay)


« Reply #5 on: May 22, 2020, 07:39:07 AM »

I thought they might possibly be California types, but if you look on the two different parts breakdown....Cali and non-Cali, that carb shows on both which is a bit confusing. At least to my somewhat addled mind.  Grin
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John Schmidt
Member
*****
Posts: 15204


a/k/a Stuffy. '99 I/S Valk Roadsmith Trike

De Pere, WI (Green Bay)


« Reply #6 on: May 22, 2020, 03:25:17 PM »

California carbs, you'll need to cap them off, Grumpy glued rubber caps on a set I had him rebuild for me way back when.
I just mixed up some JB Weld and put a dab on each tube thereby blocking the ends shut. Started to pull the tank, I swear that darn fuel hose is at least 3' lower than it was 15 years ago. Not sure how that happened.  Wink

So what's the thinking on pilot screw settings...2 turns out or 2 1/4 out? Book says 2 1/4.
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sixlow
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Posts: 1794


St. Augustine, Fl.


« Reply #7 on: May 22, 2020, 05:20:00 PM »

The book, Bob attic rat, and The Grumpster all say 2 1/4. You should get a real rewarding feeling when she fires up on your rebuilt carbs John, good luck.   cooldude
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Foozle
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Posts: 368


Lexington, KY, USA


« Reply #8 on: May 22, 2020, 05:20:32 PM »

05-22

I just rebuilt the carbs on a 1998 Standard and set them to factory specs (2 1/4) - which turned out (pardon the terrible pun) to be reasonably close.  [I'm running glass packs with factory jets (35/100), plugs, needles, air filter]. It's probably better to err on the side of being a little rich, but frankly - either setting should get you in the ballpark.

Terry
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John Schmidt
Member
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Posts: 15204


a/k/a Stuffy. '99 I/S Valk Roadsmith Trike

De Pere, WI (Green Bay)


« Reply #9 on: May 23, 2020, 06:53:58 PM »

Well today I removed the old carbs from the bike to make ready for the rebuilt set. Was surprised....only took 2 sticks of dynamite to get them out. I came to the decision I have too many add-ons with the wiring running adjacent to the carbs along the upper frame. Darn near amputated my left middle finger at one point, neighbor was watching/chatting and chuckled when I told him looks like I'm going to have to use my right hand to carry on a mobile conversation with other drivers.  Wink All that's left to do is transfer the linkage for the cruise control and do a bench sync. With the carbs out, the thought occured to me the coolant tubes are exposed and was debating replacing the o-rings on them. Looks like it can be done without pulling the t'stat housing. I'm usually in the club that says "if it ain't broke, don't fix it" but my thinking is the o-rings are 22 yrs. old and now is a good chance. With my luck they'll start leaking on my trip in the next couple months. Suggestion/opinions?
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