Severe Surging

[ionbeam]

In the manual, it describes a process for checking the TPS using a pocket tester to verify sensor resistance. Does the menu-driven process take the place of that, or can there be TPS faults that do not show up in the diag menu?

The pocket tester would be a diagnostic tool used if the TPS sensor failed the menu-driven test. If the TPS passed the menu-driven test it is good. The only caveat may be that the sensor was (most likely) cool when you did the test. You may want to try it again when the TPS is good and hot.

Yanktar offers good advice. Start simple and rule out the basics.

Alan

 

[eaglemike]

On autos, many parts are covered by a federally mandated warranty - including sensors. I just had a cam position sensor covered on a turbo PT cruiser under this warranty.......I hope it is the same on bikes.......

I will be doing the above diagnostic on my tps just for grins later - many thanks for the excellant instructions!

All the best,

Mike

 

[Bounce]

Mr. Rocket... YES on the YESI was informed that the TPS is an occasional maintenance item & not covered by YES. Imagine my saddness.

Check with a different dealer. The TPS is not a "wear" item and others have had it covered.

 

[Bounce]

Mr. Rocket... YES on the YESI was informed that the TPS is an occasional maintenance item & not covered by YES. Imagine my saddness.

I don't understand why the TPS wouldn't be covered by YES. Take it to another dealer.

If I really had that hard of a time believing what they told me I might go elsewhere. This place, Sunrise Cycle, Norfolk, VA has been decent to me. They're also a whopping 3 miles from my house... & high on my "dealer of choice" list mostly because of this.

I questioned them more than once about the TPS charge. No go... I just paid & took Big & Silver home.

Talk to Yamaha Customer Support (national) and explain to them that you paid before you learned that other such failures had been fixed under YES. Corporate will (most likely) make a few calls and set things straight.

 

[FJRocket]

Mr. Rocket... YES on the YES

Mr. Rocket is my Dad. My oldest brother would be Rocket Junior. My next older brother is ThRockIT! I'm just plain ol' Matt... Mr. Rocket made me feel OLD.

Ok, I'm Doctor Rocket. But certainly no Rocket Scientist. Glad you all are sharing this sensor business with all of us, because I'd be lost trying to figure this out. And my local stealership is the closest in about 90 miles. Can you say SOL?

Good luck to Heidi getting reimbursed, and Rick, I hope you get your surging squared away. Watching this thread closely. And wondering if I shouldn't get one of those sensors and carry it with on trips? Is it that common of a problem? Would most dealers have it in stock? My dealer seems to keep NOTHING in stock. Hence orders to FJRGoodies and Gary McCoy.

 

[luvtoride]

I can tell you this, '04 & '05 R1's develop stalling/cut out, and rough idling problems assoiated with the primary TPS and Yamaha is warranting them no problem. So I suggest you rethink your loyalty to your dealer. I think you just got took. I could be wrong thinking the FJR would be covered, but I don't see why they'd do it for one bike and not another.

The TPS was not replaced. It was a simple adjustment. The YES would've covered it in the event of a pooped out sensor. Not the case, though. But, it's appreciated that you pointed out that, once again, a woman gets taken to the cleaners. Damn, I thought that I was finally moving past those stereotypes.

Heidi

 

[luvtoride]

Mr. Rocket... YES on the YES

Mr. Rocket is my Dad. My oldest brother would be Rocket Junior. My next older brother is ThRockIT! I'm just plain ol' Matt... Mr. Rocket made me feel OLD.

Ok, I'm Doctor Rocket. But certainly no Rocket Scientist. Glad you all are sharing this sensor business with all of us, because I'd be lost trying to figure this out. And my local stealership is the closest in about 90 miles. Can you say SOL?

Good luck to Heidi getting reimbursed, and Rick, I hope you get your surging squared away. Watching this thread closely. And wondering if I shouldn't get one of those sensors and carry it with on trips? Is it that common of a problem? Would most dealers have it in stock? My dealer seems to keep NOTHING in stock. Hence orders to FJRGoodies and Gary McCoy.

Matt, so sorry for the identity mistake. Jump on your bike & take a cruise to make yourself feel young again.

I'll always be young unless I get married... BECAUSE THAT'S MY LAST NAME! bwahahaha!!!

Hey, you're going to EOM, right? I'll be meeting you then.

Heidi

PS... so, this isn't considered a thread hijack, guess that I should say something about surging... um, um, um... SURGING SUCKS!

 

[FJRocket]

So the sensor can be adjusted? Is this something I should expect to attend to at some point?

Yeah, Heidi, I'm going to EOM. See you there. Coming down from the opposite direction. And I finally DID go out and ride yesterday, and I did feel young again.

 

[RickL]

In the manual, it describes a process for checking the TPS using a pocket tester to verify sensor resistance. Does the menu-driven process take the place of that, or can there be TPS faults that do not show up in the diag menu?

The pocket tester would be a diagnostic tool used if the TPS sensor failed the menu-driven test. If the TPS passed the menu-driven test it is good. The only caveat may be that the sensor was (most likely) cool when you did the test. You may want to try it again when the TPS is good and hot.

Yanktar offers good advice. Start simple and rule out the basics.

Alan

Yanktar, ionbeam,

You guys were on the mark. It was the throttle bodies not being in sync. I'd never done that procedure before; it was pretty easy (used the Twinmax carb balancer and it worked great) and smoooooothed the bike right out. Thanks for the advice; back to basics was right on!

RickL

 

[luvtoride]

So the sensor can be adjusted? Is this something I should expect to attend to at some point?
Yeah, Heidi, I'm going to EOM. See you there. Coming down from the opposite direction. And I finally DID go out and ride yesterday, and I did feel young again.

Yup, it can be adjusted. From what I've been told a really handy mechanically minded person can do it themselves with the proper tools. ramblinman was telling me that it's a relatively simple procedure, too. I forgot what tool it is that is required. Some volty meter thingy.

For something like this I prefer to go to the stealer. I'm good for oil/ final gear oil changes, cleaning the air filter & remove replace some body panels. I even did my own barbarian jumper & bumped all my cylinders up to richen the mix.

I don't know if you should expect this to happen to you. From what I understand is it CAN happen to anyone with a TPS.

I can tell you that I myself never actually experienced surging. As stated earlier, mine reared its ugly head in the form of a check engine light. I performed a self diagnisis of the computer & got the codes.... all by my little woman lonesome!

Heidi

 

[radman]

Actually, you should be able to set it without a volt meter. It has two screws holding it to the throttle shaft, these go through slots on the TPS. Using the diag screen, simply 0 it out at idle, then check to see if it hits 99 at WFO. Thats all the adjustment is. This assumes, of course, it needs adjustment. They're pretty much a set and forget at initial installation, and not something that changes throughout it's lifespan. I suppose it's possible to need to adjust it should a Unauthorized TB Synch get carried away.

 

[ionbeam]

, simply 0 it out at idle, then check to see if it hits 99 at WFO. Thats all the adjustment is. This assumes, of course, it needs adjustment.

Err, you would like the TPS to show ~16 or so indicating that the throttle plates are scantly open allowing idle air flow. Idealy the span will be 14 to 100%.

 

[weekend rider]

I hope you find your problem soon so you can enjoy your bike as you had planned, I have been reading all the suggestions that everyone gave it seem there are a couple that have been over looked. The two things that come to mind , which can cause the problem you are having are bad fuel filter, and bad gas, I would get rid of the tank of gas and put on a new filter and try that first good luck

:as

sasin: B) h34r:

weekend rider

 

[yanktar]

In the manual, it describes a process for checking the TPS using a pocket tester to verify sensor resistance. Does the menu-driven process take the place of that, or can there be TPS faults that do not show up in the diag menu?

The pocket tester would be a diagnostic tool used if the TPS sensor failed the menu-driven test. If the TPS passed the menu-driven test it is good. The only caveat may be that the sensor was (most likely) cool when you did the test. You may want to try it again when the TPS is good and hot.

Yanktar offers good advice. Start simple and rule out the basics.

Alan

Yanktar, ionbeam,

You guys were on the mark. It was the throttle bodies not being in sync. I'd never done that procedure before; it was pretty easy (used the Twinmax carb balancer and it worked great) and smoooooothed the bike right out. Thanks for the advice; back to basics was right on!

RickL

Rick,

It is an easy procedure--I learned to do it on carburated bikes, and still have to do it on my FZ1. The FJR is FAR easier to synch than any other 4 cyl bike I've done it on

BTW, just for reference--Synching throttle bodies is nearly the same as synching carbs--only easier!

And the results (if the TBs or carbs were NOT in synch) are rather spectacular!

Glad it helped.

YT.

 

[radman]

n/t