Taming the beast

Yamaha FJR Motorcycle Forum

Help Support Yamaha FJR Motorcycle Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Pretty sure you've gotta go counter clockwise on the downstream portion of the connector on the throttle cable- Making the two sections farther apart and taking up the slack....then tighten the nut back up to secure things in place. IIRC
Guess it depends on which way you're facing :rolleyes: Standing on the right side of the bike, facing forward and looking down the throttle cable toward the speedo, I had to turn the lower adjuster clockwise to tighten up the slack.

Ummm.... yeah- So you loosen your drain plug by putting your face next to the engine and turning the drain clockwise too, then??? :rolleyes:

 
grinding noise solved by different dealer...the service guy said it was the noise from the shift forks...when bike was in neutral and quickly revved. No problem...a relief.

 
That's great news, M1300! Glad to hear it's solved.

Also thought I would report when I did the TBS and spring removal I did not remove the tank either. I propped it up and tied it back. Unplug the elec. connectors. Leave the fuel line attached. Leave the T-bar alone. Tie back half of the Jiffy-Pop heat shield and get to work! Had plenty of gas in tank so I could run it while the tank was tied back. No problem!

 
I've never experienced the problem you are talking about. Have been able to ride around with no problems what so ever at low speed. Even before I did the center spring mod. PM. <>< :)
Well, yes you can do it, but it takes an extreme amount of throttle control, and very little throttle movement on the 06 translates to a huge amount of RPM change due to the progressive pulley at the lower end.

Many riders adjust to it, and you may not notice it after a while, but you really don't have good (precise) control of the engine RPM in the first 1/4 or 1/3 of throttle movement. A movement as little as 1mm can vary the engine RPM by as much as 4K rpm in the lower ranges. A good rider can adjust to it over time, but that doesn't make it right.

Fred, you seem to be on a crusade with this issue. Have you ever considered that it is a non-issue for many 06 owners? Perhaps there are other conditions leading to the symptons besides the pulley, such as a lean fuel injection curve, or even a combination of factors which makes your FJR worse than most. Or, perhaps your are just more sensitive than most. It matters not. I am not knocking your efforts to fix a problem that you, and others perceive. Good on you for coming up with a creative solution to your problem.

But you seem to be hyper-sensitive to the issue and needing to convince others they have a problem when they say they don't. When others claim they don't have an issue, you seem to think they do, but they have just learned to live with it and it's still there and a problem. Who are you to tell them what they are experiencing? Perhaps it doesn't take them "an extreme amount of throttle control" to operate their FJR smoothly. Perhaps they do have "good (precise) throttle control". Perhaps FJRs are different in this respect. Perhaps its all the rider. Most likely a combination of both.

Your an intelligent, and helpful guy who came up with an ingenious fix to a problem you perceived with your FJR. But may I suggest you stop trying to convince everybody the sky is falling? Don't take this issue so personally. Just because some don't agree with you on this issue, does not make their own experience or opinion any less valid or accurate. No doubt your creative fix will help some, maybe even many. But that doesn't mean ALL 06 owners need it.

Keep up the good work though.

Fred is solving what I perceive to be the singular frustrating problem on my 06 FJR. My Yamaha dealer acts like this is a normal throttle response...no wayit should work like this. I don't have the mechanical confidence to go into the fix that Fred describes. It would be great if Yamaha would send a fix kit to their dealers to take care of this as a warranty issue. Any chance?

Francis

I've never experienced the problem you are talking about. Have been able to ride around with no problems what so ever at low speed. Even before I did the center spring mod. PM. <>< :)
Well, yes you can do it, but it takes an extreme amount of throttle control, and very little throttle movement on the 06 translates to a huge amount of RPM change due to the progressive pulley at the lower end.

Many riders adjust to it, and you may not notice it after a while, but you really don't have good (precise) control of the engine RPM in the first 1/4 or 1/3 of throttle movement. A movement as little as 1mm can vary the engine RPM by as much as 4K rpm in the lower ranges. A good rider can adjust to it over time, but that doesn't make it right.

Fred, you seem to be on a crusade with this issue. Have you ever considered that it is a non-issue for many 06 owners? Perhaps there are other conditions leading to the symptons besides the pulley, such as a lean fuel injection curve, or even a combination of factors which makes your FJR worse than most. Or, perhaps your are just more sensitive than most. It matters not. I am not knocking your efforts to fix a problem that you, and others perceive. Good on you for coming up with a creative solution to your problem.

But you seem to be hyper-sensitive to the issue and needing to convince others they have a problem when they say they don't. When others claim they don't have an issue, you seem to think they do, but they have just learned to live with it and it's still there and a problem. Who are you to tell them what they are experiencing? Perhaps it doesn't take them "an extreme amount of throttle control" to operate their FJR smoothly. Perhaps they do have "good (precise) throttle control". Perhaps FJRs are different in this respect. Perhaps its all the rider. Most likely a combination of both.

Your an intelligent, and helpful guy who came up with an ingenious fix to a problem you perceived with your FJR. But may I suggest you stop trying to convince everybody the sky is falling? Don't take this issue so personally. Just because some don't agree with you on this issue, does not make their own experience or opinion any less valid or accurate. No doubt your creative fix will help some, maybe even many. But that doesn't mean ALL 06 owners need it.

Keep up the good work though.
 
Fred (or anyone), having read and reread all these posts, and others, and studied your photos of your throttle shim installation, I have several questions:

1. Is it your opinion that JUST the shim will resolve all (most) of the part-throttle issue? Or do you think the BM is also necessary...or other mods?

2. ChipFJR reported that a Techlusion-style box resolved his problem, apparently via an enriched fuel mixture. Do you think the richer mixture will obviate the need for the shim modification?

3. I've pored over drawings in the service manual, but I'll be darned if I can find that pulley. If the tank and banky are pulled, does it come into view?

4. Is the house next door to yours for sale?

 
Fred (or anyone), having read and reread all these posts, and others, and studied your photos of your throttle shim installation, I have several questions:
1. Is it your opinion that JUST the shim will resolve all (most) of the part-throttle issue? Or do you think the BM is also necessary...or other mods?

2. ChipFJR reported that a Techlusion-style box resolved his problem, apparently via an enriched fuel mixture. Do you think the richer mixture will obviate the need for the shim modification?

3. I've pored over drawings in the service manual, but I'll be darned if I can find that pulley. If the tank and banky are pulled, does it come into view?

4. Is the house next door to yours for sale?
Mark,

The Barbarian Mod has some benefits of it's own, in that it gets rid of some of the lean surging and richens the mixture a bit, and the general concensious is that Yamaha leaned out the mixture a bit too much in an effort to get it through emissions testing. So there is nothing wrong with doing the Barbarian Mod to the bike, and it will help get rid of some low rpm lean surging. But don't expect it to cure the sensitive throttle that the 06 has. The only way to fix this is to modify the pulley.

You can richen the mixture till raw gas comes out the pipes, but you will still have a non-linear throttle which will mean small movements at low RPM settings affect greater throttle plate movement. The only way you will ever get rid of the sensitive throttle is to make the pulley diameter larger and get rid of the proggressive pitch it has. Installing larger diameter grips has a similar effect, though to a lesser degree, and you probably couldn't put grips on large enough to compensate the pulley.

The pulley is not shown seperatly on the fiche. You would have to buy the entire throttle body assy ($1,024) to get it. This is why I modified it instead of swapping it with an 05 pulley.

 
Last edited by a moderator:
Hey Fred- What would you think about putting a series of zip ties on the cable itself??? Something that would center the cable in the pulley, but not allow it to get wedged or stuck??? I'm thinking that if the cable didn't go all the way down into the pulley the effect would be the same, yes?

 
Hey Fred- What would you think about putting a series of zip ties on the cable itself??? Something that would center the cable in the pulley, but not allow it to get wedged or stuck??? I'm thinking that if the cable didn't go all the way down into the pulley the effect would be the same, yes?
I would be worried that the zip ties wouldn't stay put on the cable and could get jammed in the pulley.

 
A'ight, I did it. Only busted one knuckle, only took two, no, three pieces of wahr to get the durn thing bent right. While I was at it I let the th'ottle sprang off a notch.

The successful completion of the two tasks is clear proof that anyone can do this.

I have no idea if it's going to help. I won't be able to ride for another few weeks, I'm afraid. But I felt very manly, with a disemboweled bike, and tools all over the place. Even got to use the anvil end of the seldom-used vise, to pound on.

I'm still wondering if the itty piece of copper wahr is all that really needs doing, or will I still want the Barbara jumping mod thing, too.

 
After having done the Barbarian mod a few weeks ago and resetting all my CO settings back to stock, I have once again made an adjustment. I didn't like the feel at +7 on all cylinders. Today I went up +2 from stock and so far have noticed a smoothing out of power. I guess a little can go a long way. :yahoo:

 
Last edited by a moderator:
I'm in the midst of running down this herky-jerky slow speed operation, myself. One mod that I have had success with is (don't laugh) larger grips! I put on the "American Touring" grips, which are considerably larger than the puny stock grips the bike came with- and it has made it far easier to modulate the throttle. Think about it- you're pulling on a larger diameter so the same effort leads to less throttle movement. Just thought I'd ad to the discussion- these grips are pretty darned big...certainly the largest I've ever used... but they are comfortable, eliminate most of the hand numbness that I was experienceing, and have mitigated some of the drive line jerkiness that has plagued the '06. Try 'em out.
Where can I find these "American Touring" grips?

 
I'm in the midst of running down this herky-jerky slow speed operation, myself. One mod that I have had success with is (don't laugh) larger grips! I put on the "American Touring" grips, which are considerably larger than the puny stock grips the bike came with- and it has made it far easier to modulate the throttle. Think about it- you're pulling on a larger diameter so the same effort leads to less throttle movement. Just thought I'd ad to the discussion- these grips are pretty darned big...certainly the largest I've ever used... but they are comfortable, eliminate most of the hand numbness that I was experienceing, and have mitigated some of the drive line jerkiness that has plagued the '06. Try 'em out.
Where can I find these "American Touring" grips?
Dunno, but PM me your address and I"ll mail you a pair of Grip Puppies. I didn't like the thicker diameter, and don't have a vibe issue with the stock grips and bar ends, up to four hundred mile days, at least. One little corner of one of the puppies is torn...just put it on the bottom of the left bar.

 
Dunno, but PM me your address and I"ll mail you a pair of Grip Puppies. I didn't like the thicker diameter, and don't have a vibe issue with the stock grips and bar ends, up to four hundred mile days, at least. One little corner of one of the puppies is torn...just put it on the bottom of the left bar.

Supremely generous, thank you, but I already have a pair and don't like them.

 
I've never experienced the problem you are talking about. Have been able to ride around with no problems what so ever at low speed. Even before I did the center spring mod. PM. <>< :)
Well, yes you can do it, but it takes an extreme amount of throttle control, and very little throttle movement on the 06 translates to a huge amount of RPM change due to the progressive pulley at the lower end.

Many riders adjust to it, and you may not notice it after a while, but you really don't have good (precise) control of the engine RPM in the first 1/4 or 1/3 of throttle movement. A movement as little as 1mm can vary the engine RPM by as much as 4K rpm in the lower ranges. A good rider can adjust to it over time, but that doesn't make it right.

Fred, you seem to be on a crusade with this issue. Have you ever considered that it is a non-issue for many 06 owners? Perhaps there are other conditions leading to the symptons besides the pulley, such as a lean fuel injection curve, or even a combination of factors which makes your FJR worse than most. Or, perhaps your are just more sensitive than most. It matters not. I am not knocking your efforts to fix a problem that you, and others perceive. Good on you for coming up with a creative solution to your problem.

But you seem to be hyper-sensitive to the issue and needing to convince others they have a problem when they say they don't. When others claim they don't have an issue, you seem to think they do, but they have just learned to live with it and it's still there and a problem. Who are you to tell them what they are experiencing? Perhaps it doesn't take them "an extreme amount of throttle control" to operate their FJR smoothly. Perhaps they do have "good (precise) throttle control". Perhaps FJRs are different in this respect. Perhaps its all the rider. Most likely a combination of both.

Your an intelligent, and helpful guy who came up with an ingenious fix to a problem you perceived with your FJR. But may I suggest you stop trying to convince everybody the sky is falling? Don't take this issue so personally. Just because some don't agree with you on this issue, does not make their own experience or opinion any less valid or accurate. No doubt your creative fix will help some, maybe even many. But that doesn't mean ALL 06 owners need it.

Keep up the good work though.
+1 Sorry Fred, but I find you compulsive obsessive. I haven't done any mods and I am fine with my bike - stock. I willl put some bad-*** horns though!

 
I'm in the midst of running down this herky-jerky slow speed operation, myself. One mod that I have had success with is (don't laugh) larger grips! I put on the "American Touring" grips, which are considerably larger than the puny stock grips the bike came with- and it has made it far easier to modulate the throttle. Think about it- you're pulling on a larger diameter so the same effort leads to less throttle movement. Just thought I'd ad to the discussion- these grips are pretty darned big...certainly the largest I've ever used... but they are comfortable, eliminate most of the hand numbness that I was experienceing, and have mitigated some of the drive line jerkiness that has plagued the '06. Try 'em out.
Where can I find these "American Touring" grips?

Here's a link to the place where I bought mine:

https://www.bikebandit.com/partsbandit/prod...tion_Path~3.asp

 
Top