Can anyone tell me what the factory setting is for turns out for the mixture screws. And, how to get rid of this icon?
Thanks Dave
What icon?
The only "icon" I see is a large primate in the second post :sarcastic:
Here is a link to one of the posts in the Carburetor Files
http://www.fjowners.com/index.php?topic=12506.msg124247#msg124247 (http://www.fjowners.com/index.php?topic=12506.msg124247#msg124247)
The second quoted response - a little long but we worth your time. Especially the part about using your finger nail to determine a "level setting" for the mixture screws.
Thank you guys. 2 1/2 turns is a good starting point . The holding my hand over my face icon comes up when I am composing so I thought it came up with each post. It's the way I feel when I ask all my dumb questions.
Ok, I have the carbs working fairly well but now, the throttle cable is sticking. When I look at it when operating, it seems that the rear cable does not wrap around the wheel when I open the throttle.. Is this just that the cable is twisted a bit in the mounting hole on the wheel or too much slack ? Or.... ??
Hi Dave, with the cable splitter box that we enjoy on the 84-87 FJ's, I've never had a problem with a twisted cable.
The reason is that in the splitter box, the cables have round head ferrules that can (if needed) rotate in the slides, easing any twisting torsion that may be on the push or pull cables.
Check and see if you have these type of cable ferrules in your splitter box. You should.
You can always disconnect the cables from the slides in the box and then with the tension off the cables reposition the cables on the throttle shaft wheels. Just to verify all the cables are relaxed with no twist on them, then put the slides back on and button everything back up.
Check your cable alignment at your carbs. Make sure everything lines up.
Cheers
The splitter box is also on my 89 3CV Pat - I thought they were like that until the 3XW's.
But as you say, I always disconnect the cables at the splitter box when I'm taking off and replacing my carbs so that I can fit the cables round the wheels with ease, and without the issues of tension in the cables. :good2:
Thanks Dean, good to know. Splitters on Gen 1, 2 and 3...gotcha
I thought the splitter boxes went away when the fuel pumpers came out....
I like having them.....My Gen 4 '92 didn't have one and it made the R/R of the carbs more of a hassle.
Between the UniPods and splitter box, I can have my carbs off my bike and on the bench in 5 minutes.
Very handy.
So - what is a splitter box?
Quote from: Waiex191 on November 21, 2020, 10:49:12 AM
So - what is a splitter box?
Throttle cable splitter box #16
https://www.partzilla.com/catalog/yamaha/motorcycle/1989/fj1200w/handlebar-cable (https://www.partzilla.com/catalog/yamaha/motorcycle/1989/fj1200w/handlebar-cable)
(https://cdn.partzilla.com/MTE/d/d/MjE3NjMwNA-d314f2f9.png)
Here's my Splitter Box with the top cover removed.
(http://fjowners.com/gallery/12/6213_21_11_20_1_33_29.jpeg)
When one of you invent a time machine, please send me that info last March as that looks a lot easier than not taking it apart!
Is there a merit badge for removing and installing the carbs twice without undoing the splitter?
Bryan, yes you get a special badge...extra credit if you also struggled with the oem airbox.
Holy crap, I can't imagine what you went through. How did you do it?
Disconnect the cables at the throttle tube then pull the carbs out with the cables attached at the carbs?
(That's how to do it on the Gen 4's)
No, no, don't tell me you fussed with unhooking the cables at the carbs....while the carbs were on the bike?
That's really hard....
Quote from: Pat Conlon on November 21, 2020, 01:52:08 AM
Between the UniPods and splitter box, I can have my carbs off my bike and on the bench in 5 minutes.
Very handy.
With the splitter box and the oem airbox I can get the carbies off and on the bench in around 5 million years. Then it's just a short geological age to get them back on......
Quote from: Pat Conlon on November 21, 2020, 04:00:33 PM
Bryan, yes you get a special badge...extra credit if you also struggled with the oem airbox.
Holy crap, I can't imagine what you went through. How did you do it?
Disconnect the cables at the throttle tube then pull the carbs out with the cables attached at the carbs?
(That's how to do it on the Gen 4's)
No, no, don't tell me you fussed with unhooking the cables at the carbs....while the carbs were on the bike?
That's really hard....
I have the OEM airbox but I had Ryan's special tool. I disconnected the carbs, then disconnected the cables whilst holding the carbs above the motor. Installation was in reverse. I actually got pretty good at it, but I'm glad to let that skill rust away.
Ok, I finally got a couple bikes out and I am back to the FJ1100. I have the throttle working right now so, I guess I can call that progress. The Haynes manual does not cover carb adjustment but only says to go to your local Yamaha dealer. It idles well but bogs if given gas quickly. If I ease the throttle up , it will rev.
Is there a carb set up and tuning instruction somewhere? I am anxious to get on this bike if it ever stops raining that is.
I did find a procedure. It seems that I am too rich. After a throttle blip the revs stay up a bit before going back down to regular idle. It does seem that I am only 2 turns out on the mixture screws though.
You are not too rich, you are too lean. Open the mixture screws a quarter turn at a time until the bogging stops.
Regards, Pete.
Thanks Pete. I found an old post with the procedure of getting the highest idle on each carb separately and then moving to the next one. It does seem to be working.
I guess it pays to read the instructions. And, I learned something today. You have to plug the vacuum line on carb 1 when you're tuning the carbs. After I did that, it worked really well. Throttle response is very good now. I have also kicked myself... hard...
:Facepalm: