Throttle question

[thethendi]

Hi all,

I've noticed that occasionally, when I'm upshifting or downshifting, the engine will wind up revving even though I'm trying to close the throttle to make the shift (like they've mentioned in the MSF course, I shift like I'm wringing a towel out...close the throttle, pull the clutch, shift, let out the clutch and get back on the throttle). I've tried exaggerating the movements a bit thinking it's how I shift, but I still notice this. It's not something that happens all the time, but enough that I'm bothered by it.

As far as my technique, is there anything that I should be paying more attention to as I'm shifting? Or could this be a mechanical problem? My throttle snaps back fine, so it's probably not that.

Thanks.

[n1one]

Originally Posted by thethendi

Hi all,

I've noticed that occasionally, when I'm upshifting or downshifting, the engine will wind up revving even though I'm trying to close the throttle to make the shift (like they've mentioned in the MSF course, I shift like I'm wringing a towel out...close the throttle, pull the clutch, shift, let out the clutch and get back on the throttle). I've tried exaggerating the movements a bit thinking it's how I shift, but I still notice this. It's not something that happens all the time, but enough that I'm bothered by it.

As far as my technique, is there anything that I should be paying more attention to as I'm shifting? Or could this be a mechanical problem? My throttle snaps back fine, so it's probably not that.

Thanks.

Has your bike been checked out for the TPS recall? I think 2005 was affected. Search this forum for TPS Recall and it will help you figure it out.

Hope this helps.

[thethendi]

I don't know off hand, but I have a servicing appointment on Tuesday and I'll definitely have them check that out. I had a feeling that if it was something wrong with the bike itself, it could be the TPS.

[thethendi]

So this morning, I started the bike and without touching the throttle, the bike revved to ~8000 rpm. I killed the engine immediately and restarted...then it was fine.

Update: I just called Yamaha, and apparently my bike is not affected by the recall. Grr...

Update 2: Maybe this belongs in the Technical section...

[Botch]

Originally Posted by thethendi

So this morning, I started the bike and without touching the throttle, the bike revved to ~8000 rpm. I killed the engine immediately and restarted...then it was fine.

Update: I just called Yamaha, and apparently my bike is not affected by the recall. Grr...

Sir, even if your bike was not part of the recall, I don't think I'd even ride it again until the dealer checks it out thoroughly! That sounds like a really unsafe condition!

[MarinaFazer]

yea that's weird...at first I'd say just work on timing your clutch lever with shifting, cuz sometimes you'll rev the engine while shifting just because it isn't timed right (I'm guilty), but then you mentioned the starting rev...weird...definately take to the dealer or shop.

[bcityroller]

Originally Posted by thethendi

So this morning, I started the bike and without touching the throttle, the bike revved to ~8000 rpm. I killed the engine immediately and restarted...then it was fine.

Update: I just called Yamaha, and apparently my bike is not affected by the recall. Grr...

Update 2: Maybe this belongs in the Technical section...

Your bike is likely affected by the recall - you should verify if the answer is:
1. that the recall was already performed on your VIN number before
2. if whoever you were talking to made an error and it is affected and not performed yet (go get it done if this is the case)
3. really not affected.

link to more info http://www.fz6-forum.com/forum/fz6-t...ge-stalls.html (Throttle Position Sensor Issues (Are you Experiencing Poor Idle/Mileage, or Stalls?))

That said the symptons are not exactly as described in the recall notice which references mostly lower than expected rpm as opposed to higher.

[n1one]

I find it hard to believe your bike was not affected...I would call another dealer and ask them to check...

[thethendi]

Your bike is likely affected by the recall - you should verify if the answer is:
1. that the recall was already performed on your VIN number before
2. if whoever you were talking to made an error and it is affected and not performed yet (go get it done if this is the case)
3. really not affected.

I called Yamaha, and they said that the bike was not affected after looking up the VIN number. The only thing the dealer had to say was that "you would have gotten a recall notice". I bought it as an overstock last year (it's an '05 model) from them. Turds.

I also checked the technical bulletin that's out (the one that Admin posted), and apparently my VIN number doesn't fall into the range of '05s that were affected. So it looks like if something is wrong with the TPS, I'd have to shell out for it myself. Which sucks.

One of my buddies who's good with cars said something similar happened to him on his car...he would be driving and all of a sudden the revs would just start going crazy. He looked around for the problem and apparently one of his vacuum hoses was interfering with the operation of his throttle body. So that's the next thing I'm going to check...pull out the airbox and look around to see if anything is in the way there.

Sir, even if your bike was not part of the recall, I don't think I'd even ride it again until the dealer checks it out thoroughly! That sounds like a really unsafe condition!

I have a service appointment on Tuesday (earliest available...at an indy shop, since apparently the service departments at the dealerships in the Boston area aren't so good), so looks like no riding for me until then. =(

[n1one]

Man...if they don't help you.....that's just wrong

I would tell them that they just sold their first and last bike to you. You'll take your business elsewhere