TPS recalled and sent for repair...

[SPORT]

Thank god for threads like this one. Not like the "How Old Are You" or "Does Your Significant Other Ride?" threads. Those are SO ghey, I got a yeast infection just reading the damn things.

Where have we heard that before? Oh yeah, on every other thread on this forum! <_<

Let me help you out and print it a few more times...

Thank god for threads like this one. Not like the "How Old Are You" or "Does Your Significant Other Ride?" threads. Those are SO ghey, I got a yeast infection just reading the damn things.

...

Just being helpful Howie. :lol:

Give the guy (yes, guy, not ghey) a break, he can't ride, so has to fill his time elsewhere. Call it therapy.

LMAO!!!!!

You gheys make me laugh!

 

[SPORT]

Just completed a standard TBS and tweaked the air screws just a bit, but not enough to solve my rough running engine @ RPM. Drats! @ 4,200 RPM's the TBS guage is off about 2-3 cm's and not enough to be the problem of my issue. Just called the dealer and left a message to call me. Beginning to get a little frustrated...

I still think it's a vacuum leak created from replacing the TPS.

 

[SPORT]

This is a good day...to ride!

Finally, after a month of tracking the problem...I have found the fix! It was simple...too easy, and should have been considered sooner (hindsight's 20/20).

It seems the CO numbers needed to be another +5 above the additional +7 I did several years ago. The only change that has occured was that I completed a minot Airbox mod to open up both sides. I didn't think this needed an additional CO change (nor do I remember any one else doing so). Nevertheless, it is done.

In addition to the CO's increasing, I also trimmed 1/4" off the spark plug wires and re-installed the rubber boots. Finally I re-installed the PC-III. All seems to run very well now.

I'll post follow-ups in the near future if anything should change.

In the end, this is what was accomplished:

1. ECU connector under 'T' bar cleaned
2. Spark Plugs replaced with Iridium
3. Spark plug leads trimmed 1/4"
4. TPS inspected for faults (after recall accomplished)
5. TBS (authorized version)
6. CO's adjusted +5

 

[03HiYoSilver]

Sport,

Glad you got to the bottom of this! Thanks for the excellent diagnosis report.

 

[RadioHowie]

This is a good day...to ride!
Finally, after a month of tracking the problem...I have found the fix! It was simple...too easy, and should have been considered sooner (hindsight's 20/20).

It seems the CO numbers needed to be another +5 above the additional +7 I did several years ago. The only change that has occured was that I completed a minot Airbox mod to open up both sides. I didn't think this needed an additional CO change (nor do I remember any one else doing so). Nevertheless, it is done.

In addition to the CO's increasing, I also trimmed 1/4" off the spark plug wires and re-installed the rubber boots. Finally I re-installed the PC-III. All seems to run very well now.

I'll post follow-ups in the near future if anything should change.

In the end, this is what was accomplished:

1. ECU connector under 'T' bar cleaned
2. Spark Plugs replaced with Iridium
3. Spark plug leads trimmed 1/4"
4. TPS inspected for faults (after recall accomplished)
5. TBS (authorized version)
6. CO's adjusted +5

Dammit, Sport, you didn't really narrow the problem down, if I read your latest post correctly. Was it the ECU connector cleaning that fixed it? Or the new plugs? Or the trimmed pug wires? Or the TBS? Or the CO adjustment?

Perhaps in trying to follow all your (many) threads I missed where #s 1, 2, 3, 4 and/or 5 fixes were done, without success, before you hit on the CO adjustment.

Did you test your results after each step? Or were the above 6 fixes done and THEN your problem disappeared?

See what I mean? Which one of the six fixed your problem?

BTW, glad whatever it was you did fixed your Feej. :yahoo:

edited to add: BTW#2, I'm betting the trimmed plug wires were the "fix"

 

[SPORT]

most were done one at a time, then ridden only to find no change in engine performance.

Today I trimmed the spark plug wires & increased the CO's an additional 5.

I have been arguing with the dealer that it feels and sounds like a lean running engine. This is why I kept pressing for a cut o-ring in the TPS or fuel rack. Thus, I believe the increased CO's are to fix.

One thing not mentioned is that I did the Cdogman airbox mod last November. This may have increased airflow to the point of needing to enrichen the fuel, and the CO's did just that. Just my thoughts though.

 

[RadioHowie]

most were done one at a time, then ridden only to find no change in engine performance.
Today I trimmed the spark plug wires & increased the CO's an additional 5.

I have been arguing with the dealer that it feels and sounds like a lean running engine. This is why I kept pressing for a cut o-ring in the TPS or fuel rack. Thus, I believe the increased CO's are to fix.

One thing not mentioned is that I did the Cdogman airbox mod last November. This may have increased airflow to the point of needing to enrichen the fuel, and the CO's did just that. Just my thoughts though.

Okay, so the final fix was shortened plug wires AND the bump in CO.

Why not, just for the helluvit, put the CO back and see how it drives (at least it's a quick & easy experiment)? Enquiring minds, y'know.

[SIZE=8pt](p.s.: I'm still bettin' on the plug wires, but I have been known to trash an engine)[/SIZE]

 

[ionbeam]

...Why not, just for the helluvit, put the CO back and see how it drives (at least it's a quick & easy experiment)? Enquiring minds, y'know.
[SIZE=8pt](p.s.: I'm still bettin' on the plug wires, but I have been known to trash an engine)[/SIZE]

Gunny to everything he said.

We're waiting....

FWIW, after I changed my TPS my FJR ran rough too. Mine turned out to be the #3 plug cap not staying clipped to the plug.

 

[SPORT]

Okay, so the final fix was shortened plug wires AND the bump in CO.
Why not, just for the helluvit, put the CO back and see how it drives (at least it's a quick & easy experiment)? Enquiring minds, y'know.

[SIZE=8pt](p.s.: I'm still bettin' on the plug wires, but I have been known to trash an engine)[/SIZE]

Good Point.

Let me get the Unauthorized TBS done in a week or so, then I'll play with the CO's again and report back.

 

[SkooterG]

most were done one at a time, then ridden only to find no change in engine performance.
Today I trimmed the spark plug wires & increased the CO's an additional 5.

I have been arguing with the dealer that it feels and sounds like a lean running engine. This is why I kept pressing for a cut o-ring in the TPS or fuel rack. Thus, I believe the increased CO's are to fix.

One thing not mentioned is that I did the Cdogman airbox mod last November. This may have increased airflow to the point of needing to enrichen the fuel, and the CO's did just that. Just my thoughts though.

Increasing the CO like you did really only affects things at idle, and just off idle. Like Throttle Body Syncs, too much credit is given to how it affects the engine's performance after making the changes. IMHO, it was NOT the CO that fixed your FJR.

Regardless, glad to hear something positive for a change.

 

[SPORT]

SkooterG,

Though I do not understand CO's enough to refute your claim, I'm perplexed that the Barbarian mod is suggested for bikes who have that 'surging' issue while at cruise.

In addition, I just reset my CO's back 5 to determine if in fact the CO's was the problem to my rough running engine. I am happy to say that the roughness returned; though not as severe (I think the spark plug wires may have also contributed to the roughness :dntknw: ) I then went +7 and rode another 20 miles and the bike smoothed out even more than the +5 did. It is now +14 from stock, and the bike seems to be running EXCELLENT, and even smoothed out some of the vibes in the handle bars.

So; to conclude,

1) I think the spark plug leads may have adversely effected gross roughness, such as the #2 cylinder vacuum intermittently and all of a sudden drop to 0 then return to normal operation.

A) The fix was to cut 1/4" off the ends of all the spark plug lead wires. I forgot to clean and seal with Dialectric grease and will perform next time the tank is up.

2) Now, I believe the CDogman's Airbox mod does infact adversely effect the fuel air mixture enough to require increasing the CO levels.

A) The fix was to go +14 from stock. I agree that this seems quite high, but it has smoothed everything out VERY nicely!

As a disclaimer, I do not understand how the CO's effect mixture, I only know that increasing them made the engine smooth out tremendously while @ cruise. Moreover, I have the PC3 hooked back up, so how do the CO's trump the PC3? (yes the O2 sensor is disconnected.)

If anyone here understands how the CO's control mixture, I think many of us would be greatly interested.

Again, a big hardy THANK YOU to all of your assistance and suggestions. This is EXACTLY why these types of forums should continue their socialistic platform. Douh! A nasty plug of politics

 

[SPORT]

Drudging up an old thread...

Just got the feeger out of the shop..again! Guess what was wrong...you got it; ANOTHER bad TPS!

Dealer says it was out of warranty so I spent a week fighting with Yamaha corporate to have them cover under warranty.

Corporate called back stating they would cover the part but not labor. They claim the TPS was of the newer model and did not qualify for the recall, as well, it is 6 months beyond warranty (new part on my bike for just over 1 year). I explained that this part has been failing intermittently ever since it was installed, but every time I brought it back, the dealer could find nothing wrong with it and said it only needed to be adjusted.

I asked corporate for my original TPS back as it lasted longer than the 'new and improved' TPS. They stopped returning my calls and would not allow me to speak with their manager, Virgel. (sp?)

How is it that a recalled part last's longer than the new and improved version, but when the new one fails in less than a year's time, corporate does not feel obligated to support their customer?

As my student's like to say, "I'm feeling some type of way" about customer service and doing the right thing!

Anybody else have their 'new and improved' TPS fail on them?